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Commit 4c3b6c4d authored by Julien Muchembled's avatar Julien Muchembled
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Reimplement pack in a scalable way, partial pack & approval/reject of pack orders 

This is still pack without garbage collection, and without deleting
any transaction metadata ('trans' table).

Partial pack means that the client can take a list of oids: only these
oids will be packed. No API is defined yet at IStorage level.

Storage nodes pack in background, independently from other storage
nodes, partition by partition, and calling IStorage.pack() returns
immediately (though internally, NEO does have a mechanism to wait
until it's done, which can be required for some ZODB unit tests).

This new implementation also introduces the concept of signing pack
orders. The idea is that calling IStorage.pack() only records a pack
order in the database, that can be reviewed/approved/rejected using
an UI that is left to be done. For the moment, pack orders are
automatically approved (by the master).

Internally, pack orders are stored as extra metadata of a transaction.
IOW, IStorage.pack() implies the commit of an (empty) transaction.

IStorage.pack() can be called without waiting for the previous one
to be completed. Pack orders processed in the same order as they are
requested:
- an unsigned pack order blocks the processing of any newer pack order;
- rejected pack order are ignored.

Approving a pack order also triggers pack on backup clusters.
That's the simplest way to have everything consistent.
Maybe later we could identify scenarios where it would be ok
to unsign pack orders during asynchronous replication.

The feature to check replicas is marked as experimental because it is
not aware of differences that can happen during pack operations.
_______________________________________________________________________

About concurrency within the storage node, a first implementation
extended what was done to delete partitions in background (see
previous commit). But here, the job can't be easily split in splices
that are never too big:
- it's simpler to never split the processing of an oid but this can
  freeze the application for a long time when packing an oid that was
  modified many times (e.g. 30 min for an oid with 20 millions
  historical records);
- then an attempt so that an oid can be processed in several times was
  inefficient, maybe due to a limit in RocksDB (packing the oid in the
  above example would take days during which NEO is significantly
  slower).

So background database jobs were moved to a separate thread, using a
separate connection to the underlying database. This is obviously
only useful for the MySQL backend. In order to share as much code as
possible between backends, SQLite also does the work in a separate
thread but sharing the main connection instead of opening a separate
one (so such backend would not be suited in the above example).

But deleting raw data with a secondary connection is not possible
without fsyncing too often (or transaction isolation issues...): these
deletions are deferred by recording them in a new table, which is
processed later with the main connection. This is not so bad because
the actual deletion of raw data is usually more efficient this way
(more sequential IO).

Here are a few numbers:
- without load: 10h45 (12h for the first reimplementation)
- with a load that normally takes 6h58:
  - load: 7h33 (so 8.4% slower)
  - pack: 15h36 (+4h51)

As explained above, the pack of a partition is split in 2 steps:
- the longest one (here 78% without load) should have negligible
  peformance impact on the application because the work is done in a
  separate thread with a secondary connection, and also with something
  to minimize GIL impact by prioritizing the main thread;
- the shortest one (22%) to process the deferred deletions,
  with even lower priority than replication: it tries to split
  the work in tasks that take ~10ms.
parent 3204a4c6
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Showing with 2435 additions and 1016 deletions
neo/client/Storage.py
View file @ 4c3b6c4d
......@@ -20,6 +20,7 @@ from zope.interface import implementer
import ZODB.interfaces
from neo.lib import logging
from neo.lib.util import tidFromTime
from .app import Application
from .exception import NEOStorageNotFoundError, NEOStorageDoesNotExistError
......@@ -235,7 +236,7 @@ class Storage(BaseStorage.BaseStorage,
logging.warning('Garbage Collection is not available in NEO,'
' please use an external tool. Packing without GC.')
try:
self.app.pack(t)
self.app.pack(tidFromTime(t))
except Exception:
logging.exception('pack_time=%r', t)
raise
......
neo/client/__init__.py
View file @ 4c3b6c4d
......@@ -28,20 +28,25 @@ def patch():
# successful commit (which ends with a response from the master) already
# acts as a "network barrier".
# BBB: What this monkey-patch does has been merged in ZODB5.
if not hasattr(Connection, '_flush_invalidations'):
return
if hasattr(Connection, '_flush_invalidations'):
assert H(Connection.afterCompletion) in (
'cd3a080b80fd957190ff3bb867149448', # Python 2.7
'b1d9685c13967d4b6d74c7ef86f68f17', # PyPy 2.7
)
def afterCompletion(self, *ignored):
self._readCurrent.clear()
# PATCH: do not call sync()
self._flush_invalidations()
Connection.afterCompletion = afterCompletion
global TransactionMetaData
try:
from ZODB.Connection import TransactionMetaData
except ImportError: # BBB: ZODB < 5
from ZODB.BaseStorage import TransactionRecord
TransactionMetaData = lambda user='', description='', extension=None: \
TransactionRecord(None, None, user, description, extension)
patch()
from . import app # set up signal handlers early enough to do it in the main thread
neo/client/app.py
View file @ 4c3b6c4d
......@@ -25,7 +25,6 @@ except ImportError:
from cPickle import dumps, loads
_protocol = 1
from ZODB.POSException import UndoError, ConflictError, ReadConflictError
from persistent.TimeStamp import TimeStamp
from neo.lib import logging
from neo.lib.compress import decompress_list, getCompress
......@@ -35,6 +34,7 @@ from neo.lib.util import makeChecksum, dump
from neo.lib.locking import Empty, Lock
from neo.lib.connection import MTClientConnection, ConnectionClosed
from neo.lib.exception import NodeNotReady
from . import TransactionMetaData
from .exception import (NEOStorageError, NEOStorageCreationUndoneError,
NEOStorageReadRetry, NEOStorageNotFoundError, NEOPrimaryMasterLost)
from .handlers import storage, master
......@@ -49,6 +49,8 @@ CHECKED_SERIAL = object()
# failed in the past.
MAX_FAILURE_AGE = 600
TXN_PACK_DESC = 'IStorage.pack'
try:
from Signals.Signals import SignalHandler
except ImportError:
......@@ -64,6 +66,8 @@ class Application(ThreadedApplication):
# the transaction is really committed, no matter for how long the master
# is unreachable.
max_reconnection_to_master = float('inf')
# For tests only. See end of pack() method.
wait_for_pack = False
def __init__(self, master_nodes, name, compress=True, cache_size=None,
**kw):
......@@ -590,7 +594,8 @@ class Application(ThreadedApplication):
# user and description are cast to str in case they're unicode.
# BBB: This is not required anymore with recent ZODB.
packet = Packets.AskStoreTransaction(ttid, str(transaction.user),
str(transaction.description), ext, list(txn_context.cache_dict))
str(transaction.description), ext, list(txn_context.cache_dict),
txn_context.pack)
queue = txn_context.queue
conn_dict = txn_context.conn_dict
# Ask in parallel all involved storage nodes to commit object metadata.
......@@ -705,7 +710,7 @@ class Application(ThreadedApplication):
del cache_dict[oid]
ttid = txn_context.ttid
p = Packets.AskFinishTransaction(ttid, list(cache_dict),
checked_list)
checked_list, txn_context.pack)
try:
tid = self._askPrimary(p, cache_dict=cache_dict, callback=f)
assert tid
......@@ -977,12 +982,16 @@ class Application(ThreadedApplication):
def sync(self):
self._askPrimary(Packets.Ping())
def pack(self, t):
tid = TimeStamp(*time.gmtime(t)[:5] + (t % 60, )).raw()
if tid == ZERO_TID:
raise NEOStorageError('Invalid pack time')
self._askPrimary(Packets.AskPack(tid))
# XXX: this is only needed to make ZODB unit tests pass.
def pack(self, tid, _oids=None): # TODO: API for partial pack
transaction = TransactionMetaData(description=TXN_PACK_DESC)
self.tpc_begin(None, transaction)
self._txn_container.get(transaction).pack = _oids and sorted(_oids), tid
tid = self.tpc_finish(transaction)
if not self.wait_for_pack:
return
# Waiting for pack to be finished is only needed
# to make ZODB unit tests pass.
self._askPrimary(Packets.WaitForPack(tid))
# It should not be otherwise required (clients should be free to load
# old data as long as it is available in cache, event if it was pruned
# by a pack), so don't bother invalidating on other clients.
......
neo/client/exception.py
View file @ 4c3b6c4d
......@@ -37,6 +37,13 @@ class NEOStorageCreationUndoneError(NEOStorageDoesNotExistError):
some object existed at some point, but its creation was undone.
"""
class NEOUndoPackError(NEOStorageNotFoundError):
"""Race condition between undo & pack
While undoing a transaction, an oid record disappeared.
This can happen if the storage node is packing.
"""
# TODO: Inherit from transaction.interfaces.TransientError
# (not recognized yet by ERP5 as a transient error).
class NEOPrimaryMasterLost(POSException.ReadConflictError):
......
neo/client/handlers/master.py
View file @ 4c3b6c4d
......@@ -174,3 +174,6 @@ class PrimaryAnswersHandler(AnswerBaseHandler):
def answerFinalTID(self, conn, tid):
self.app.setHandlerData(tid)
def waitedForPack(self, conn):
pass
neo/client/handlers/storage.py
View file @ 4c3b6c4d
......@@ -25,8 +25,10 @@ from neo.lib.exception import NodeNotReady
from neo.lib.handler import MTEventHandler
from . import AnswerBaseHandler
from ..transactions import Transaction
from ..exception import NEOStorageError, NEOStorageNotFoundError
from ..exception import NEOStorageReadRetry, NEOStorageDoesNotExistError
from ..exception import (
NEOStorageError, NEOStorageNotFoundError, NEOUndoPackError,
NEOStorageReadRetry, NEOStorageDoesNotExistError,
)
@apply
class _DeadlockPacket(object):
......@@ -194,6 +196,9 @@ class StorageAnswersHandler(AnswerBaseHandler):
# This can happen when requiring txn informations
raise NEOStorageNotFoundError(message)
def undoPackError(self, conn, message):
raise NEOUndoPackError(message)
def nonReadableCell(self, conn, message):
logging.info('non readable cell')
raise NEOStorageReadRetry(True)
......
neo/client/transactions.py
View file @ 4c3b6c4d
......@@ -31,6 +31,7 @@ class Transaction(object):
voted = False
ttid = None # XXX: useless, except for testBackupReadOnlyAccess
lockless_dict = None # {partition: {uuid}}
pack = None
def __init__(self, txn):
self.queue = SimpleQueue()
......
neo/lib/connection.py
View file @ 4c3b6c4d
......@@ -600,11 +600,40 @@ class Connection(BaseConnection):
packet.setId(self.peer_id)
self._addPacket(packet)
def delayedAnswer(self, packet):
return DelayedAnswer(self, packet)
def _connected(self):
self.connecting = False
self.getHandler().connectionCompleted(self)
class DelayedAnswer(object):
def __init__(self, conn, packet):
assert packet.isResponse() and not packet.isError(), packet
self.conn = conn
self.packet = packet
self.msg_id = conn.peer_id
def __call__(self, *args):
# Same behaviour as Connection.answer for closed connections.
# Not more tolerant, because connections are expected to be properly
# cleaned up when they're closed (__eq__/__hash__ help to identify
# instances that are related to the connection being closed).
try:
self.conn.send(self.packet(*args), self.msg_id)
except ConnectionClosed:
if self.packet.ignoreOnClosedConnection():
raise
def __hash__(self):
return hash(self.conn)
def __eq__(self, other):
return self is other or self.conn is other
class ClientConnection(Connection):
"""A connection from this node to a remote node."""
......
neo/lib/event.py
View file @ 4c3b6c4d
......@@ -63,6 +63,8 @@ class EpollEventManager(object):
assert fd == -1, fd
self.epoll.register(r, EPOLLIN)
self._trigger_lock = Lock()
self.lock = l = Lock()
l.acquire()
close_list = []
self._closeAppend = close_list.append
l = Lock()
......@@ -207,6 +209,15 @@ class EpollEventManager(object):
# granularity of 1ms and Python 2.7 rounds the timeout towards zero.
# See also https://bugs.python.org/issue20452 (fixed in Python 3).
blocking = .001 + max(0, timeout - time()) if timeout else -1
def poll(blocking):
l = self.lock
l.release()
try:
return self.epoll.poll(blocking)
finally:
l.acquire()
else:
poll = self.epoll.poll
# From this point, and until we have processed all fds returned by
# epoll, we must prevent any fd from being closed, because they could
# be reallocated by new connection, either by this thread or by another.
......@@ -214,7 +225,7 @@ class EpollEventManager(object):
# 'finally' clause.
self._closeAcquire()
try:
event_list = self.epoll.poll(blocking)
event_list = poll(blocking)
except IOError, exc:
if exc.errno in (0, EAGAIN):
logging.info('epoll.poll triggered undocumented error %r',
......
neo/lib/exception.py
View file @ 4c3b6c4d
......@@ -56,3 +56,6 @@ class NonReadableCell(NeoException):
On such event, the client must retry, preferably another cell.
"""
class UndoPackError(NeoException):
pass
neo/lib/protocol.py
View file @ 4c3b6c4d
......@@ -173,6 +173,7 @@ def ErrorCodes():
NON_READABLE_CELL
READ_ONLY_ACCESS
INCOMPLETE_TRANSACTION
UNDO_PACK_ERROR
@Enum
def NodeStates():
......@@ -273,21 +274,24 @@ class Packet(object):
assert isinstance(other, Packet)
return self._code == other._code
def isError(self):
return self._code == RESPONSE_MASK
@classmethod
def isError(cls):
return cls._code == RESPONSE_MASK
def isResponse(self):
return self._code & RESPONSE_MASK
@classmethod
def isResponse(cls):
return cls._code & RESPONSE_MASK
def getAnswerClass(self):
return self._answer
def ignoreOnClosedConnection(self):
@classmethod
def ignoreOnClosedConnection(cls):
"""
Tells if this packet must be ignored when its connection is closed
when it is handled.
"""
return self._ignore_when_closed
return cls._ignore_when_closed
class PacketRegistryFactory(dict):
......@@ -669,11 +673,37 @@ class Packets(dict):
:nodes: C -> S
""")
AskPack, AnswerPack = request("""
Request a pack at given TID.
WaitForPack, WaitedForPack = request("""
Wait until pack given by tid is completed.
:nodes: C -> M -> S
""", ignore_when_closed=False)
:nodes: C -> M
""")
AskPackOrders, AnswerPackOrders = request("""
Request list of pack orders excluding oldest completed ones.
:nodes: M -> S; C, S -> M
""")
NotifyPackSigned = notify("""
Send ids of pack orders to be processed. Also used to fix replicas
that may have lost them.
When a pack order is auto-approved, the master also notifies storage
that store it, even though they're already notified via
AskLockInformation. In addition to make the implementation simpler,
storage nodes don't have to detect this case and it's slightly faster
when there's no pack.
:nodes: M -> S, backup
""")
NotifyPackCompleted = notify("""
Notify the master node that partitions have been successfully
packed up to the given ids.
:nodes: S -> M
""")
CheckReplicas = request("""
Ask the cluster to search for mismatches between replicas, metadata
......
neo/lib/pt.py
View file @ 4c3b6c4d
......@@ -30,9 +30,11 @@ class PartitionTableException(Exception):
class Cell(object):
"""This class represents a cell in a partition table."""
state = CellStates.DISCARDED
def __init__(self, node, state = CellStates.UP_TO_DATE):
self.node = node
self.state = state
self.setState(state)
def __repr__(self):
return "<Cell(uuid=%s, address=%s, state=%s)>" % (
......
neo/lib/util.py
View file @ 4c3b6c4d
......@@ -101,6 +101,9 @@ def datetimeFromTID(tid):
seconds, lower = divmod(lower * 60, TID_LOW_OVERFLOW)
return datetime(*(higher + (seconds, int(lower * MICRO_FROM_UINT32))))
def timeFromTID(tid, _epoch=datetime.utcfromtimestamp(0)):
return (datetimeFromTID(tid) - _epoch).total_seconds()
def addTID(ptid, offset):
"""
Offset given packed TID.
......
neo/master/app.py
View file @ 4c3b6c4d
......@@ -42,6 +42,7 @@ def monotonic_time():
from .backup_app import BackupApplication
from .handlers import identification, administration, client, master, storage
from .pack import PackManager
from .pt import PartitionTable
from .recovery import RecoveryManager
from .transactions import TransactionManager
......@@ -51,7 +52,6 @@ from .verification import VerificationManager
@buildOptionParser
class Application(BaseApplication):
"""The master node application."""
packing = None
storage_readiness = 0
# Latest completely committed TID
last_transaction = ZERO_TID
......@@ -101,6 +101,7 @@ class Application(BaseApplication):
super(Application, self).__init__(
config.get('ssl'), config.get('dynamic_master_list'))
self.tm = TransactionManager(self.onTransactionCommitted)
self.pm = PackManager()
self.name = config['cluster']
self.server = config['bind']
......@@ -317,6 +318,8 @@ class Application(BaseApplication):
truncate = Packets.Truncate(*e.args) if e.args else None
# Automatic restart except if we truncate or retry to.
self._startup_allowed = not (self.truncate_tid or truncate)
finally:
self.pm.reset()
self.storage_readiness = 0
self.storage_ready_dict.clear()
self.storage_starting_set.clear()
......@@ -560,7 +563,8 @@ class Application(BaseApplication):
tid = txn.getTID()
transaction_node = txn.getNode()
invalidate_objects = Packets.InvalidateObjects(tid, txn.getOIDList())
for client_node in self.nm.getClientList(only_identified=True):
client_list = self.nm.getClientList(only_identified=True)
for client_node in client_list:
if client_node is transaction_node:
client_node.send(Packets.AnswerTransactionFinished(ttid, tid),
msg_id=txn.getMessageId())
......@@ -570,9 +574,26 @@ class Application(BaseApplication):
# Unlock Information to relevant storage nodes.
notify_unlock = Packets.NotifyUnlockInformation(ttid)
getByUUID = self.nm.getByUUID
for storage_uuid in txn.getUUIDList():
txn_storage_list = txn.getUUIDList()
for storage_uuid in txn_storage_list:
getByUUID(storage_uuid).send(notify_unlock)
# Notify storage nodes about new pack order if any.
pack = self.pm.packs.get(tid)
if pack is not None is not pack.approved:
# We could exclude those that store transaction metadata, because
# they can deduce it upon NotifyUnlockInformation: quite simple but
# for the moment, let's optimize the case where there's no pack.
# We're only there in case of automatic approval.
assert pack.approved
pack = Packets.NotifyPackSigned((tid,), ())
for uuid in self.getStorageReadySet():
getByUUID(uuid).send(pack)
# Notify backup clusters.
for node in client_list:
if node.extra.get('backup'):
node.send(pack)
# Notify storage that have replications blocked by this transaction,
# and clients that try to recover from a failure during tpc_finish.
notify_finished = Packets.NotifyTransactionFinished(ttid, tid)
......@@ -612,6 +633,9 @@ class Application(BaseApplication):
assert uuid not in self.storage_ready_dict, self.storage_ready_dict
self.storage_readiness = self.storage_ready_dict[uuid] = \
self.storage_readiness + 1
pack = self.pm.getApprovedRejected()
if any(pack):
self.nm.getByUUID(uuid).send(Packets.NotifyPackSigned(*pack))
self.tm.executeQueuedEvents()
def isStorageReady(self, uuid):
......@@ -629,3 +653,12 @@ class Application(BaseApplication):
getByUUID = self.nm.getByUUID
for uuid in uuid_set:
getByUUID(uuid).send(p)
def updateCompletedPackId(self):
try:
pack_id = min(node.completed_pack_id
for node in self.pt.getNodeSet(True)
if hasattr(node, "completed_pack_id"))
except ValueError:
return
self.pm.notifyCompleted(pack_id)
neo/master/backup_app.py
View file @ 4c3b6c4d
......@@ -75,6 +75,7 @@ class BackupApplication(object):
self.nm.createMasters(master_addresses)
em = property(lambda self: self.app.em)
pm = property(lambda self: self.app.pm)
ssl = property(lambda self: self.app.ssl)
def close(self):
......@@ -117,8 +118,19 @@ class BackupApplication(object):
app.changeClusterState(ClusterStates.BACKINGUP)
del bootstrap, node
self.ignore_invalidations = True
self.ignore_pack_notifications = True
conn.setHandler(BackupHandler(self))
conn.ask(Packets.AskLastTransaction())
assert app.backup_tid == pt.getBackupTid()
min_tid = add64(app.backup_tid, 1)
p = app.pm.packs
for tid in sorted(p):
if min_tid <= tid:
break
if p[tid].approved is None:
min_tid = tid
break
conn.ask(Packets.AskPackOrders(min_tid), min_tid=min_tid)
# debug variable to log how big 'tid_list' can be.
self.debug_tid_count = 0
while True:
......@@ -375,3 +387,12 @@ class BackupApplication(object):
if node_list:
min(node_list, key=lambda node: node.getUUID()).send(
Packets.NotifyUpstreamAdmin(addr))
def broadcastApprovedRejected(self, min_tid):
app = self.app
p = app.pm.getApprovedRejected(min_tid)
if any(p):
getByUUID = app.nm.getByUUID
p = Packets.NotifyPackSigned(*p)
for uuid in app.getStorageReadySet():
getByUUID(uuid).send(p)
neo/master/handlers/__init__.py
View file @ 4c3b6c4d
......@@ -15,10 +15,11 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from ..app import monotonic_time
from ..pack import RequestOld
from neo.lib import logging
from neo.lib.exception import StoppedOperation
from neo.lib.handler import EventHandler
from neo.lib.protocol import Packets
from neo.lib.protocol import Packets, ZERO_TID
class MasterHandler(EventHandler):
"""This class implements a generic part of the event handlers."""
......@@ -40,12 +41,21 @@ class MasterHandler(EventHandler):
def askLastIDs(self, conn):
tm = self.app.tm
conn.answer(Packets.AnswerLastIDs(tm.getLastOID(), tm.getLastTID()))
conn.answer(Packets.AnswerLastIDs(tm.getLastTID(), tm.getLastOID()))
def askLastTransaction(self, conn):
conn.answer(Packets.AnswerLastTransaction(
self.app.getLastTransaction()))
def _askPackOrders(self, conn, pack_id, only_first_approved):
app = self.app
if pack_id is not None is not app.pm.max_completed >= pack_id:
RequestOld(app, pack_id, only_first_approved,
conn.delayedAnswer(Packets.AnswerPackOrders))
else:
conn.answer(Packets.AnswerPackOrders(
app.pm.dump(pack_id or ZERO_TID, only_first_approved)))
def _notifyNodeInformation(self, conn):
app = self.app
node = app.nm.getByUUID(conn.getUUID())
......
neo/master/handlers/administration.py
View file @ 4c3b6c4d
......@@ -25,7 +25,7 @@ from neo.lib.handler import AnswerDenied
from neo.lib.pt import PartitionTableException
from neo.lib.protocol import ClusterStates, Errors, \
NodeStates, NodeTypes, Packets, uuid_str
from neo.lib.util import dump
from neo.lib.util import add64, dump
CLUSTER_STATE_WORKFLOW = {
# destination: sources
......@@ -234,6 +234,15 @@ class AdministrationHandler(MasterHandler):
@check_state(ClusterStates.RUNNING)
def truncate(self, conn, tid):
app = self.app
if app.getLastTransaction() <= tid:
raise AnswerDenied("Truncating after last transaction does nothing")
if app.pm.getApprovedRejected(add64(tid, 1))[0]:
# TODO: The protocol must be extended to support safe cases
# (e.g. no started pack whose id is after truncation tid).
# The user may also accept having a truncated DB with missing
# records (i.e. have an option to force that).
raise AnswerDenied("Can not truncate before an approved pack")
conn.answer(Errors.Ack(''))
raise StoppedOperation(tid)
......
neo/master/handlers/backup.py
View file @ 4c3b6c4d
......@@ -16,7 +16,7 @@
from neo.lib.exception import PrimaryFailure
from neo.lib.handler import EventHandler
from neo.lib.protocol import NodeTypes, NodeStates, Packets, ZERO_TID
from neo.lib.protocol import NodeTypes, NodeStates, Packets
from neo.lib.pt import PartitionTable
class BackupHandler(EventHandler):
......@@ -72,3 +72,45 @@ class BackupHandler(EventHandler):
partition_set.add(getPartition(tid))
prev_tid = app.app.getLastTransaction()
app.invalidatePartitions(tid, prev_tid, partition_set)
# The following 2 methods:
# - keep the PackManager up-to-date;
# - replicate the status of pack orders when they're known after the
# storage nodes have fetched related transactions.
def notifyPackSigned(self, conn, approved, rejected):
backup_app = self.app
if backup_app.ignore_pack_notifications:
return
app = backup_app.app
packs = app.pm.packs
ask_tid = min_tid = None
for approved, tid in (True, approved), (False, rejected):
for tid in tid:
try:
packs[tid].approved = approved
except KeyError:
if not ask_tid or tid < ask_tid:
ask_tid = tid
else:
if not min_tid or tid < min_tid:
min_tid = tid
if ask_tid:
if min_tid is None:
min_tid = ask_tid
else:
assert min_tid < ask_tid, (min_tid, ask_tid)
conn.ask(Packets.AskPackOrders(ask_tid), min_tid=min_tid)
elif min_tid:
backup_app.broadcastApprovedRejected(min_tid)
def answerPackOrders(self, conn, pack_list, min_tid):
backup_app = self.app
app = backup_app.app
add = app.pm.add
for pack_order in pack_list:
add(*pack_order)
backup_app.broadcastApprovedRejected(min_tid)
backup_app.ignore_pack_notifications = False
###
neo/master/handlers/client.py
View file @ 4c3b6c4d
......@@ -32,6 +32,7 @@ class ClientServiceHandler(MasterHandler):
app = self.app
node = app.nm.getByUUID(conn.getUUID())
assert node is not None, conn
app.pm.clientLost(conn)
for x in app.tm.clientLost(node):
app.notifyTransactionAborted(*x)
node.setUnknown()
......@@ -63,7 +64,7 @@ class ClientServiceHandler(MasterHandler):
conn.answer((Errors.Ack if app.tm.vote(app, *args) else
Errors.IncompleteTransaction)())
def askFinishTransaction(self, conn, ttid, oid_list, checked_list):
def askFinishTransaction(self, conn, ttid, oid_list, checked_list, pack):
app = self.app
tid, node_list = app.tm.prepare(
app,
......@@ -73,7 +74,8 @@ class ClientServiceHandler(MasterHandler):
conn.getPeerId(),
)
if tid:
p = Packets.AskLockInformation(ttid, tid)
p = Packets.AskLockInformation(ttid, tid,
app.pm.new(tid, *pack) if pack else False)
for node in node_list:
node.ask(p)
else:
......@@ -100,18 +102,6 @@ class ClientServiceHandler(MasterHandler):
tid = MAX_TID
conn.answer(Packets.AnswerFinalTID(tid))
def askPack(self, conn, tid):
app = self.app
if app.packing is None:
storage_list = app.nm.getStorageList(only_identified=True)
app.packing = (conn, conn.getPeerId(),
{x.getUUID() for x in storage_list})
p = Packets.AskPack(tid)
for storage in storage_list:
storage.getConnection().ask(p)
else:
conn.answer(Packets.AnswerPack(False))
def abortTransaction(self, conn, tid, uuid_list):
# Consider a failure when the connection between the storage and the
# client breaks while the answer to the first write is sent back.
......@@ -126,6 +116,16 @@ class ClientServiceHandler(MasterHandler):
involved.update(uuid_list)
app.notifyTransactionAborted(tid, involved)
def askPackOrders(self, conn, pack_id):
return self._askPackOrders(conn, pack_id, False)
def waitForPack(self, conn, tid):
try:
pack = self.app.pm.packs[tid]
except KeyError:
conn.answer(Packets.WaitedForPack())
else:
pack.waitForPack(conn.delayedAnswer(Packets.WaitedForPack))
# like ClientServiceHandler but read-only & only for tid <= backup_tid
class ClientReadOnlyServiceHandler(ClientServiceHandler):
......
neo/master/handlers/storage.py
View file @ 4c3b6c4d
......@@ -21,6 +21,8 @@ from neo.lib.pt import PartitionTableException
from neo.lib.util import dump
from . import BaseServiceHandler
EXPERIMENTAL_CORRUPTED_STATE = False
class StorageServiceHandler(BaseServiceHandler):
""" Handler dedicated to storages during service state """
......@@ -43,14 +45,14 @@ class StorageServiceHandler(BaseServiceHandler):
super(StorageServiceHandler, self).connectionLost(conn, new_state)
app.setStorageNotReady(uuid)
app.tm.storageLost(uuid)
app.pm.connectionLost(conn)
app.updateCompletedPackId()
if (app.getClusterState() == ClusterStates.BACKINGUP
# Also check if we're exiting, because backup_app is not usable
# in this case. Maybe cluster state should be set to something
# else, like STOPPING, during cleanup (__del__/close).
and app.listening_conn):
app.backup_app.nodeLost(node)
if app.packing is not None:
self.answerPack(conn, False)
def askUnfinishedTransactions(self, conn, offset_list):
app = self.app
......@@ -76,6 +78,10 @@ class StorageServiceHandler(BaseServiceHandler):
app.tm.lock(ttid, conn.getUUID())
def notifyPartitionCorrupted(self, conn, partition, cell_list):
if not EXPERIMENTAL_CORRUPTED_STATE:
logging.error("Partition %s corrupted in: %s",
partition, ', '.join(map(uuid_str, cell_list)))
return
change_list = []
for cell in self.app.pt.getCellList(partition):
if cell.getUUID() in cell_list:
......@@ -108,13 +114,13 @@ class StorageServiceHandler(BaseServiceHandler):
uuid_str(uuid), offset, dump(tid))
self.app.broadcastPartitionChanges(cell_list)
def answerPack(self, conn, status):
def notifyPackCompleted(self, conn, pack_id):
app = self.app
if app.packing is not None:
client, msg_id, uid_set = app.packing
uid_set.remove(conn.getUUID())
if not uid_set:
app.packing = None
if not client.isClosed():
client.send(Packets.AnswerPack(True), msg_id)
app.nm.getByUUID(conn.getUUID()).completed_pack_id = pack_id
app.updateCompletedPackId()
def askPackOrders(self, conn, pack_id):
return self._askPackOrders(conn, pack_id, True)
def answerPackOrders(self, conn, pack_list, process):
process(pack_list)
neo/master/pack.py 0 → 100644
View file @ 4c3b6c4d
#
# Copyright (C) 2021 Nexedi SA
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# IDEA: Keep minimal information to avoid useless memory usage, e.g. with
# arbitrary data large like a list of OIDs. Only {tid: id} is important:
# everything could be queried from storage nodes when needed. Note
# however that extra information allows the master to automatically drop
# redundant pack orders: keeping partial/time may be an acceptable cost.
from collections import defaultdict
from functools import partial
from operator import attrgetter
from weakref import proxy
from neo.lib.protocol import Packets, ZERO_TID
from neo.lib.util import add64
class Pack(object):
def __init__(self, tid, approved, partial, oids, time):
self.tid = tid
self.approved = approved
self.partial = partial
self.oids = oids
self.time = time
self._waiting = []
@property
def waitForPack(self):
return self._waiting.append
def completed(self):
for callback in self._waiting:
callback()
del self._waiting
def connectionLost(self, conn):
try:
self._waiting.remove(conn)
except ValueError:
pass
class RequestOld(object):
caller = None
def __init__(self, app, pack_id, only_first_approved, caller):
self.app = proxy(app)
self.caller = caller
self.pack_id = pack_id
self.only_first_approved = only_first_approved
self.offsets = set(xrange(app.pt.getPartitions()))
self.packs = []
# In case that the PT changes, we may ask a node again before it
# replies to previous requests, so we can't simply use its id as key.
self.querying = set()
app.pm.old.append(self)
self._ask()
def connectionLost(self, conn):
if self.caller != conn:
nid = conn.getUUID()
x = [x for x in self.querying if x[0] == nid]
if x:
self.querying.difference_update(x)
self._ask()
return True
self.__dict__.clear()
def _ask(self):
getCellList = self.app.pt.getCellList
readable = defaultdict(list)
for offset in self.offsets:
for cell in getCellList(offset, True):
readable[cell.getUUID()].append(offset)
offsets = self.offsets.copy()
for x in self.querying:
offsets.difference_update(x[1])
p = Packets.AskPackOrders(self.pack_id)
while offsets:
node = getCellList(offsets.pop(), True)[0].getNode()
nid = node.getUUID()
x = tuple(readable.pop(nid))
offsets.difference_update(x)
x = nid, x
self.querying.add(x)
node.ask(p, process=partial(self._answer, x))
def _answer(self, nid_offsets, pack_list):
caller = self.caller
if caller:
self.querying.remove(nid_offsets)
self.offsets.difference_update(nid_offsets[1])
self.packs += pack_list
if self.offsets:
self._ask()
else:
del self.caller
app = self.app
pm = app.pm
tid = self.pack_id
pm.max_completed = add64(tid, -1)
for pack_order in self.packs:
pm.add(*pack_order)
caller(pm.dump(tid, self.only_first_approved))
app.updateCompletedPackId()
class PackManager(object):
autosign = True
def __init__(self):
self.max_completed = None
self.packs = {}
self.old = []
reset = __init__
def add(self, tid, *args):
p = self.packs.get(tid)
if p is None:
self.packs[tid] = Pack(tid, *args)
if None is not self.max_completed > tid:
self.max_completed = add64(tid, -1)
elif p.approved is None:
p.approved = args[0]
@apply
def dump():
by_tid = attrgetter('tid')
def dump(self, pack_id, only_first_approved):
if only_first_approved:
try:
p = min((p for p in self.packs.itervalues()
if p.approved and p.tid >= pack_id),
key=by_tid),
except ValueError:
p = ()
else:
p = sorted(
(p for p in self.packs.itervalues() if p.tid >= pack_id),
key=by_tid)
return [(p.tid, p.approved, p.partial, p.oids, p.time) for p in p]
return dump
def new(self, tid, oids, time):
autosign = self.autosign and None not in (
p.approved for p in self.packs.itervalues())
self.packs[tid] = Pack(tid, autosign or None, bool(oids), oids, time)
return autosign
def getApprovedRejected(self, min_tid=ZERO_TID):
r = [], []
tid = self.max_completed
if tid and min_tid <= tid:
r[0].append(tid)
for tid, p in self.packs.iteritems():
if min_tid <= tid:
approved = p.approved
if approved is not None:
r[0 if approved else 1].append(tid)
return r
def notifyCompleted(self, pack_id):
for tid in list(self.packs):
if tid <= pack_id:
self.packs.pop(tid).completed()
if self.max_completed is None or self.max_completed < tid:
self.max_completed = tid
def clientLost(self, conn):
for p in self.packs.itervalues():
p.connectionLost(conn)
self.connectionLost(conn)
def connectionLost(self, conn):
self.old = [old for old in self.old if old.connectionLost(conn)]
neo/master/verification.py
View file @ 4c3b6c4d
......@@ -16,7 +16,8 @@
from collections import defaultdict
from neo.lib import logging
from neo.lib.protocol import ClusterStates, Packets, NodeStates
from neo.lib.protocol import ClusterStates, Packets, NodeStates, ZERO_TID
from neo.lib.util import add64
from .handlers import BaseServiceHandler
......@@ -70,6 +71,15 @@ class VerificationManager(BaseServiceHandler):
app.setLastTransaction(app.tm.getLastTID())
# Just to not return meaningless information in AnswerRecovery.
app.truncate_tid = None
# Set up pack manager.
node_set = app.pt.getNodeSet(readable=True)
try:
pack_id = add64(min(node.completed_pack_id
for node in node_set
if hasattr(node, "completed_pack_id")), 1)
except ValueError:
pack_id = ZERO_TID
self._askStorageNodesAndWait(Packets.AskPackOrders(pack_id), node_set)
def verifyData(self):
app = self.app
......@@ -126,11 +136,20 @@ class VerificationManager(BaseServiceHandler):
for node in getIdentifiedList(pool_set=uuid_set):
node.send(packet)
def answerLastIDs(self, conn, loid, ltid):
def notifyPackCompleted(self, conn, pack_id):
self.app.nm.getByUUID(conn.getUUID()).completed_pack_id = pack_id
def answerLastIDs(self, conn, ltid, loid):
self._uuid_set.remove(conn.getUUID())
tm = self.app.tm
tm.setLastOID(loid)
tm.setLastTID(ltid)
tm.setLastOID(loid)
def answerPackOrders(self, conn, pack_list):
self._uuid_set.remove(conn.getUUID())
add = self.app.pm.add
for pack_order in pack_list:
add(*pack_order)
def answerLockedTransactions(self, conn, tid_dict):
uuid = conn.getUUID()
......
neo/neoctl/app.py
View file @ 4c3b6c4d
......@@ -103,7 +103,7 @@ class TerminalNeoCTL(object):
r = "backup_tid = 0x%x (%s)" % (u64(backup_tid),
datetimeFromTID(backup_tid))
else:
loid, ltid = self.neoctl.getLastIds()
ltid, loid = self.neoctl.getLastIds()
r = "last_oid = 0x%x" % (u64(loid))
return r + "\nlast_tid = 0x%x (%s)\nlast_ptid = %s" % \
(u64(ltid), datetimeFromTID(ltid), ptid)
......@@ -276,11 +276,17 @@ class TerminalNeoCTL(object):
def checkReplicas(self, params):
"""
Test whether partitions have corrupted metadata
Test whether partitions have corrupted metadata by comparing replicas
Any corrupted cell is put in CORRUPTED state, possibly make the
cluster non operational.
EXPERIMENTAL - This operation is not aware that differences happen
during pack operations and you could easily break
your database. Since there's anyway no mechanism to
repair cells, the primary master only logs possible
corruption rather than mark cells as CORRUPTED.
Parameters: [partition]:[reference] ... [min_tid [max_tid]]
reference: node id of a storage with known good data
If not given, and if the cluster is in backup mode, an upstream
......
neo/scripts/runner.py
View file @ 4c3b6c4d
......@@ -48,16 +48,13 @@ UNIT_TEST_MODULES = [
'neo.tests.testUtil',
'neo.tests.testPT',
# master application
'neo.tests.master.testClientHandler',
'neo.tests.master.testMasterApp',
'neo.tests.master.testMasterPT',
'neo.tests.master.testStorageHandler',
'neo.tests.master.testTransactions',
# storage application
'neo.tests.storage.testClientHandler',
'neo.tests.storage.testMasterHandler',
'neo.tests.storage.testStorage' + os.getenv('NEO_TESTS_ADAPTER', 'SQLite'),
'neo.tests.storage.testTransactions',
# client application
'neo.tests.client.testClientApp',
'neo.tests.client.testMasterHandler',
......@@ -66,6 +63,7 @@ UNIT_TEST_MODULES = [
'neo.tests.threaded.test',
'neo.tests.threaded.testConfig',
'neo.tests.threaded.testImporter',
'neo.tests.threaded.testPack',
'neo.tests.threaded.testReplication',
'neo.tests.threaded.testSSL',
]
......
neo/storage/app.py
View file @ 4c3b6c4d
......@@ -19,11 +19,12 @@ from collections import deque
from neo.lib import logging
from neo.lib.app import BaseApplication, buildOptionParser
from neo.lib.protocol import CellStates, ClusterStates, NodeTypes, Packets
from neo.lib.protocol import CellStates, ClusterStates, NodeTypes, Packets, \
ZERO_TID
from neo.lib.connection import ListeningConnection
from neo.lib.exception import StoppedOperation, PrimaryFailure
from neo.lib.pt import PartitionTable
from neo.lib.util import dump
from neo.lib.util import add64, dump
from neo.lib.bootstrap import BootstrapManager
from .checker import Checker
from .database import buildDatabaseManager, DATABASE_MANAGERS
......@@ -59,6 +60,8 @@ class Application(BaseApplication):
_.float('w', 'wait',
help="seconds to wait for backend to be available,"
" before erroring-out (-1 = infinite)")
_.bool('disable-pack',
help="do not process any pack order")
_.bool('disable-drop-partitions',
help="do not delete data of discarded cells, which is useful for"
" big databases because the current implementation is"
......@@ -98,6 +101,7 @@ class Application(BaseApplication):
)
self.disable_drop_partitions = config.get('disable_drop_partitions',
False)
self.disable_pack = config.get('disable_pack', False)
self.nm.createMasters(config['masters'])
# set the bind address
......@@ -132,6 +136,7 @@ class Application(BaseApplication):
logging.node(self.name, self.uuid)
registerLiveDebugger(on_log=self.log)
self.dm.lock.release()
def close(self):
self.listening_conn = None
......@@ -190,6 +195,7 @@ class Application(BaseApplication):
def run(self):
try:
with self.dm.lock:
self._run()
except Exception:
logging.exception('Pre-mortem data:')
......@@ -216,6 +222,7 @@ class Application(BaseApplication):
if self.master_node is None:
# look for the primary master
self.connectToPrimary()
self.completed_pack_id = self.last_pack_id = ZERO_TID
self.checker = Checker(self)
self.replicator = Replicator(self)
self.tm = TransactionManager(self)
......@@ -281,16 +288,23 @@ class Application(BaseApplication):
self.task_queue = task_queue = deque()
try:
self.dm.doOperation(self)
with self.dm.operational(self):
with self.dm.lock:
self.maybePack()
while True:
if task_queue and isIdle():
with self.dm.lock:
while True:
while task_queue:
try:
while isIdle():
next(task_queue[-1]) or task_queue.rotate()
_poll(0)
break
except StopIteration:
task_queue.pop()
if not task_queue:
break
else:
_poll(0)
if not isIdle():
break
poll()
finally:
del self.task_queue
......@@ -320,3 +334,50 @@ class Application(BaseApplication):
self.dm.erase()
logging.info("Application has been asked to shut down")
sys.exit()
def notifyPackCompleted(self):
if self.disable_pack:
pack_id = self.last_pack_id
else:
packed = self.dm.getPackedIDs()
if not packed:
return
pack_id = min(packed.itervalues())
if self.completed_pack_id != pack_id:
self.completed_pack_id = pack_id
self.master_conn.send(Packets.NotifyPackCompleted(pack_id))
def maybePack(self, info=None, min_id=None):
ready = self.dm.isReadyToStartPack()
if ready:
packed_dict = self.dm.getPackedIDs(True)
if packed_dict:
packed = min(packed_dict.itervalues())
if packed < self.last_pack_id:
if packed == ready[1]:
# Last completed pack for this storage node hasn't
# changed since the last call to dm.pack() so simply
# resume. No info needed.
pack_id = ready[0]
assert not info, (ready, info, min_id)
elif packed == min_id:
# New pack order to process and we've just received
# all needed information to start right now.
pack_id = info[0]
else:
# Time to process the next approved pack after 'packed'.
# We don't even know its id. Ask the master more
# information.
self.master_conn.ask(
Packets.AskPackOrders(add64(packed, 1)),
pack_id=packed)
return
self.dm.pack(self, info, packed,
self.replicator.filterPackable(pack_id,
(k for k, v in packed_dict.iteritems()
if v == packed)))
else:
# All approved pack orders are processed.
self.dm.pack(self, None, None, ()) # for cleanup
else:
assert not self.pt.getReadableOffsetList(self.uuid)
neo/storage/database/__init__.py
View file @ 4c3b6c4d
......@@ -14,6 +14,8 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import time
LOG_QUERIES = False
def useMySQLdb():
......@@ -65,5 +67,25 @@ DATABASE_MANAGERS = tuple(sorted(
def buildDatabaseManager(name, args=(), kw={}):
return getAdapterKlass(name)(*args, **kw)
class DatabaseFailure(Exception):
transient_failure = False
if __debug__:
def getFailingDatabaseManager(self):
pass
def logTransientFailure(self):
raise NotImplementedError
def checkTransientFailure(self, dm):
if dm.LOCK or not self.transient_failure:
raise
assert dm is self.getFailingDatabaseManager()
dm.close()
self.logTransientFailure()
# Avoid reconnecting too often.
# Since this is used when wrapping an arbitrary long process and
# not just a single query, we can't limit the number of retries.
time.sleep(5)
neo/storage/database/importer.py
View file @ 4c3b6c4d
......@@ -18,6 +18,7 @@ import os
import pickle, sys, time
from bisect import bisect, insort
from collections import deque
from contextlib import contextmanager
from cStringIO import StringIO
from ConfigParser import SafeConfigParser
from ZConfig import loadConfigFile
......@@ -370,13 +371,14 @@ class ImporterDatabaseManager(DatabaseManager):
"""Proxy that transparently imports data from a ZODB storage
"""
_writeback = None
_last_commit = 0
def __init__(self, *args, **kw):
super(ImporterDatabaseManager, self).__init__(*args, **kw)
implements(self, """_getNextTID checkSerialRange checkTIDRange
deleteObject deleteTransaction _dropPartition _getLastTID
getReplicationObjectList _getTIDList nonempty""".split())
super(ImporterDatabaseManager, self).__init__(
background_worker_class=lambda: None,
*args, **kw)
implements(self, """_getNextTID checkSerialRange checkTIDRange _pack
deleteObject deleteTransaction _dropPartition _getLastTID nonempty
getReplicationObjectList _getTIDList _setPartitionPacked""".split())
_getPartition = property(lambda self: self.db._getPartition)
_getReadablePartition = property(lambda self: self.db._getReadablePartition)
......@@ -409,7 +411,9 @@ class ImporterDatabaseManager(DatabaseManager):
updateCellTID getUnfinishedTIDDict dropUnfinishedData
abortTransaction storeTransaction lockTransaction
loadData storeData getOrphanList _pruneData deferCommit
_getDevPath dropPartitionsTemporary
_getDevPath dropPartitionsTemporary lock
getPackedIDs _getPartitionPacked
_getPackOrders storePackOrder signPackOrders
""".split():
setattr(self, x, getattr(db, x))
if self._writeback:
......@@ -417,7 +421,6 @@ class ImporterDatabaseManager(DatabaseManager):
db_commit = db.commit
def commit():
db_commit()
self._last_commit = time.time()
if self._writeback:
self._writeback.committed()
self.commit = db.commit = commit
......@@ -477,9 +480,11 @@ class ImporterDatabaseManager(DatabaseManager):
else:
self._import = self._import()
def doOperation(self, app):
@contextmanager
def operational(self, app):
if self._import:
app.newTask(self._import)
yield
def _import(self):
p64 = util.p64
......@@ -542,7 +547,7 @@ class ImporterDatabaseManager(DatabaseManager):
" your configuration to use the native backend and restart.")
self._import = None
for x in """getObject getReplicationTIDList getReplicationObjectList
_fetchObject _getDataTID getLastObjectTID
_fetchObject _getObjectHistoryForUndo getLastObjectTID
""".split():
setattr(self, x, getattr(self.db, x))
for zodb in self.zodb:
......@@ -729,13 +734,15 @@ class ImporterDatabaseManager(DatabaseManager):
raise AssertionError
getLastObjectTID = Fallback.getLastObjectTID.__func__
_getDataTID = Fallback._getDataTID.__func__
def getObjectHistory(self, *args, **kw):
raise BackendNotImplemented(self.getObjectHistory)
def _getObjectHistoryForUndo(self, *args, **kw):
raise BackendNotImplemented(self._getObjectHistoryForUndo)
def getObjectHistoryWithLength(self, *args, **kw):
raise BackendNotImplemented(self.getObjectHistoryWithLength)
def pack(self, *args, **kw):
raise BackendNotImplemented(self.pack)
def isReadyToStartPack(self):
pass # disable pack
class WriteBack(object):
......@@ -844,7 +851,7 @@ class WriteBack(object):
class TransactionRecord(BaseStorage.TransactionRecord):
def __init__(self, db, tid):
self._oid_list, user, desc, ext, _, _ = db.getTransaction(tid)
self._oid_list, user, desc, ext, _, _, _ = db.getTransaction(tid)
super(TransactionRecord, self).__init__(tid, ' ', user, desc,
loads(ext) if ext else {})
self._db = db
......
neo/storage/database/manager.py
View file @ 4c3b6c4d
This diff is collapsed.
neo/storage/database/mysql.py
View file @ 4c3b6c4d
This diff is collapsed.
neo/storage/database/sqlite.py
View file @ 4c3b6c4d
This diff is collapsed.
neo/storage/handlers/__init__.py
View file @ 4c3b6c4d
......@@ -14,12 +14,20 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import weakref
from functools import partial
from neo.lib import logging
from neo.lib.handler import EventHandler
from neo.lib.exception import PrimaryFailure, ProtocolError, StoppedOperation
from neo.lib.protocol import uuid_str, NodeStates, NodeTypes, Packets
class EventHandler(EventHandler):
def packetReceived(self, *args):
with self.app.dm.lock:
self.dispatch(*args)
class BaseHandler(EventHandler):
def notifyTransactionFinished(self, conn, ttid, max_tid):
......@@ -30,6 +38,7 @@ class BaseHandler(EventHandler):
def abortTransaction(self, conn, ttid, _):
self.notifyTransactionFinished(conn, ttid, None)
class BaseMasterHandler(BaseHandler):
def connectionLost(self, conn, new_state):
......@@ -64,21 +73,53 @@ class BaseMasterHandler(BaseHandler):
# See comment in ClientOperationHandler.connectionClosed
self.app.tm.abortFor(uuid, even_if_voted=True)
def notifyPackSigned(self, conn, approved, rejected):
app = self.app
if not app.disable_pack:
app.replicator.keepPendingSignedPackOrders(
*app.dm.signPackOrders(approved, rejected))
if approved:
pack_id = max(approved)
if app.last_pack_id < pack_id:
app.last_pack_id = pack_id
if app.operational:
if app.disable_pack:
app.notifyPackCompleted()
else:
app.maybePack()
def notifyPartitionChanges(self, conn, ptid, num_replicas, cell_list):
"""This is very similar to Send Partition Table, except that
the information is only about changes from the previous."""
app = self.app
if ptid != 1 + app.pt.getID():
raise ProtocolError('wrong partition table id')
if app.operational:
getOutdatedOffsetList = partial(
app.pt.getOutdatedOffsetListFor, app.uuid)
were_outdated = set(getOutdatedOffsetList())
app.pt.update(ptid, num_replicas, cell_list, app.nm)
app.dm.changePartitionTable(app, ptid, num_replicas, cell_list)
if app.operational:
app.replicator.notifyPartitionChanges(cell_list)
# The U -> !U case is already handled by dm.changePartitionTable.
# XXX: What about CORRUPTED cells?
were_outdated.difference_update(getOutdatedOffsetList())
if were_outdated: # O -> !O
# After a cell is discarded,
# the smallest pt.pack may be greater.
app.notifyPackCompleted()
# And we may start processing the next pack order.
app.maybePack()
app.dm.commit()
def askFinalTID(self, conn, ttid):
conn.answer(Packets.AnswerFinalTID(self.app.dm.getFinalTID(ttid)))
def askPackOrders(self, conn, min_completed_id):
conn.answer(Packets.AnswerPackOrders(
self.app.dm.getPackOrders(min_completed_id)))
def notifyRepair(self, conn, *args):
app = self.app
app.dm.repair(weakref.ref(app), *args)
app.dm.repair(app, *args)
neo/storage/handlers/client.py
View file @ 4c3b6c4d
......@@ -15,7 +15,7 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from neo.lib import logging
from neo.lib.exception import NonReadableCell, ProtocolError
from neo.lib.exception import NonReadableCell, ProtocolError, UndoPackError
from neo.lib.handler import DelayEvent
from neo.lib.util import dump, makeChecksum, add64
from neo.lib.protocol import Packets, Errors, \
......@@ -46,6 +46,7 @@ class ClientOperationHandler(BaseHandler):
# not releasing write-locks now would lead to a deadlock.
# - A client node may be disconnected from the master, whereas
# there are still voted (and not locked) transactions to abort.
with app.dm.lock:
app.tm.abortFor(conn.getUUID())
def askTransactionInformation(self, conn, tid):
......@@ -54,7 +55,7 @@ class ClientOperationHandler(BaseHandler):
p = Errors.TidNotFound('%s does not exist' % dump(tid))
else:
p = Packets.AnswerTransactionInformation(tid, t[1], t[2], t[3],
bool(t[4]), t[0])
t[4], t[0])
conn.answer(p)
def getEventQueue(self):
......@@ -106,6 +107,10 @@ class ClientOperationHandler(BaseHandler):
dump(oid), dump(serial), dump(ttid),
dump(self.app.tm.getLockingTID(oid)))
locked = ZERO_TID
except UndoPackError:
conn.answer(Errors.UndoPackError(
'Could not undo for oid %s' % dump(oid)))
return
else:
if request_time and SLOW_STORE is not None:
duration = time.time() - request_time
......@@ -199,7 +204,8 @@ class ClientOperationHandler(BaseHandler):
app = self.app
if app.tm.loadLocked(oid):
raise DelayEvent
history_list = app.dm.getObjectHistory(oid, first, last - first)
history_list = app.dm.getObjectHistoryWithLength(
oid, first, last - first)
if history_list is None:
p = Errors.OidNotFound(dump(oid))
else:
......@@ -300,5 +306,5 @@ class ClientReadOnlyOperationHandler(ClientOperationHandler):
# (askObjectUndoSerial is used in undo() but itself is read-only query)
# FIXME askObjectHistory to limit tid <= backup_tid
# TODO dm.getObjectHistory has to be first fixed for this
# TODO dm.getObjectHistoryWithLength has to be first fixed for this
#def askObjectHistory(self, conn, oid, first, last):
neo/storage/handlers/identification.py
View file @ 4c3b6c4d
......@@ -16,8 +16,8 @@
from neo.lib import logging
from neo.lib.exception import NotReadyError, ProtocolError
from neo.lib.handler import EventHandler
from neo.lib.protocol import NodeTypes, Packets
from . import EventHandler
from .storage import StorageOperationHandler
from .client import ClientOperationHandler, ClientReadOnlyOperationHandler
......
neo/storage/handlers/initialization.py
View file @ 4c3b6c4d
......@@ -15,9 +15,8 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from . import BaseMasterHandler
from neo.lib import logging
from neo.lib.exception import ProtocolError
from neo.lib.protocol import Packets, ZERO_TID
from neo.lib.protocol import Packets
class InitializationHandler(BaseMasterHandler):
......@@ -48,10 +47,15 @@ class InitializationHandler(BaseMasterHandler):
app.dm.getTruncateTID()))
def askLastIDs(self, conn):
dm = self.app.dm
app = self.app
dm = app.dm
dm.truncate()
ltid, loid = dm.getLastIDs()
conn.answer(Packets.AnswerLastIDs(loid, ltid))
if not app.disable_pack:
packed = dm.getPackedIDs()
if packed:
self.app.completed_pack_id = pack_id = min(packed.itervalues())
conn.send(Packets.NotifyPackCompleted(pack_id))
conn.answer(Packets.AnswerLastIDs(*dm.getLastIDs()))
def askPartitionTable(self, conn):
pt = self.app.pt
......@@ -64,8 +68,8 @@ class InitializationHandler(BaseMasterHandler):
def validateTransaction(self, conn, ttid, tid):
dm = self.app.dm
dm.lockTransaction(tid, ttid)
dm.unlockTransaction(tid, ttid, True, True)
dm.lockTransaction(tid, ttid, True)
dm.unlockTransaction(tid, ttid, True, True, True)
dm.commit()
def startOperation(self, conn, backup):
......
neo/storage/handlers/master.py
View file @ 4c3b6c4d
......@@ -28,19 +28,16 @@ class MasterOperationHandler(BaseMasterHandler):
assert self.app.operational and backup
self.app.replicator.startOperation(backup)
def askLockInformation(self, conn, ttid, tid):
self.app.tm.lock(ttid, tid)
def askLockInformation(self, conn, ttid, tid, pack):
self.app.tm.lock(ttid, tid, pack)
conn.answer(Packets.AnswerInformationLocked(ttid))
def notifyUnlockInformation(self, conn, ttid):
self.app.tm.unlock(ttid)
def askPack(self, conn, tid):
app = self.app
logging.info('Pack started, up to %s...', dump(tid))
app.dm.pack(tid, app.tm.updateObjectDataForPack)
logging.info('Pack finished.')
conn.answer(Packets.AnswerPack(True))
def answerPackOrders(self, conn, pack_list, pack_id):
if pack_list:
self.app.maybePack(pack_list[0], pack_id)
def answerUnfinishedTransactions(self, conn, *args, **kw):
self.app.replicator.setUnfinishedTIDList(*args, **kw)
......
neo/storage/handlers/storage.py
View file @ 4c3b6c4d
......@@ -18,8 +18,9 @@ import weakref
from functools import wraps
from neo.lib.connection import ConnectionClosed
from neo.lib.exception import ProtocolError
from neo.lib.handler import DelayEvent, EventHandler
from neo.lib.handler import DelayEvent
from neo.lib.protocol import Errors, Packets, ZERO_HASH
from . import EventHandler
def checkConnectionIsReplicatorConnection(func):
def wrapper(self, conn, *args, **kw):
......@@ -47,6 +48,7 @@ class StorageOperationHandler(EventHandler):
def connectionLost(self, conn, new_state):
app = self.app
if app.operational and conn.isClient():
with app.dm.lock:
uuid = conn.getUUID()
if uuid:
node = app.nm.getByUUID(uuid)
......@@ -69,33 +71,36 @@ class StorageOperationHandler(EventHandler):
self.app.checker.connected(node)
@checkConnectionIsReplicatorConnection
def answerFetchTransactions(self, conn, pack_tid, next_tid, tid_list):
def answerFetchTransactions(self, conn, next_tid, tid_list, completed_pack):
app = self.app
if tid_list:
deleteTransaction = self.app.dm.deleteTransaction
deleteTransaction = app.dm.deleteTransaction
for tid in tid_list:
deleteTransaction(tid)
assert not pack_tid, "TODO"
if completed_pack is not None:
app.dm.updateCompletedPackByReplication(
app.replicator.current_partition, completed_pack)
if next_tid:
self.app.replicator.fetchTransactions(next_tid)
app.replicator.fetchTransactions(next_tid)
else:
self.app.replicator.fetchObjects()
app.replicator.fetchObjects()
@checkConnectionIsReplicatorConnection
def addTransaction(self, conn, tid, user, desc, ext, packed, ttid,
oid_list):
oid_list, pack):
# Directly store the transaction.
self.app.dm.storeTransaction(tid, (),
(oid_list, user, desc, ext, packed, ttid), False)
if pack:
self.app.dm.storePackOrder(tid, *pack)
@checkConnectionIsReplicatorConnection
def answerFetchObjects(self, conn, pack_tid, next_tid,
next_oid, object_dict):
def answerFetchObjects(self, conn, next_tid, next_oid, object_dict):
if object_dict:
deleteObject = self.app.dm.deleteObject
for serial, oid_list in object_dict.iteritems():
for oid in oid_list:
deleteObject(oid, serial)
assert not pack_tid, "TODO"
if next_tid:
# TODO also provide feedback to master about current replication state (tid)
self.app.replicator.fetchObjects(next_tid, next_oid)
......@@ -176,7 +181,7 @@ class StorageOperationHandler(EventHandler):
@checkFeedingConnection(check=False)
def askFetchTransactions(self, conn, partition, length, min_tid, max_tid,
tid_list):
tid_list, ask_pack_info):
app = self.app
if app.tm.isLockedTid(max_tid):
# Wow, backup cluster is fast. Requested transactions are still in
......@@ -190,12 +195,12 @@ class StorageOperationHandler(EventHandler):
conn = weakref.proxy(conn)
peer_tid_set = set(tid_list)
dm = app.dm
completed_pack = dm.getPackedIDs()[partition] if ask_pack_info else None
tid_list = dm.getReplicationTIDList(min_tid, max_tid, length + 1,
partition)
next_tid = tid_list.pop() if length < len(tid_list) else None
def push():
try:
pack_tid = None # TODO
for tid in tid_list:
if tid in peer_tid_set:
peer_tid_set.remove(tid)
......@@ -206,11 +211,11 @@ class StorageOperationHandler(EventHandler):
"partition %u dropped"
% partition), msg_id)
return
oid_list, user, desc, ext, packed, ttid = t
oid_list, user, desc, ext, packed, ttid, pack = t
# Sending such packet does not mark the connection
# for writing if there's too little data in the buffer.
conn.send(Packets.AddTransaction(tid, user,
desc, ext, bool(packed), ttid, oid_list), msg_id)
desc, ext, packed, ttid, oid_list, pack), msg_id)
# To avoid delaying several connections simultaneously,
# and also prevent the backend from scanning different
# parts of the DB at the same time, we ask the
......@@ -219,7 +224,7 @@ class StorageOperationHandler(EventHandler):
# is flushing another one for a concurrent connection.
yield conn.buffering
conn.send(Packets.AnswerFetchTransactions(
pack_tid, next_tid, peer_tid_set), msg_id)
next_tid, peer_tid_set, completed_pack), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass
......@@ -242,7 +247,6 @@ class StorageOperationHandler(EventHandler):
next_tid = next_oid = None
def push():
try:
pack_tid = None # TODO
for serial, oid in object_list:
oid_set = object_dict.get(serial)
if oid_set:
......@@ -265,7 +269,7 @@ class StorageOperationHandler(EventHandler):
conn.send(Packets.AddObject(oid, *object), msg_id)
yield conn.buffering
conn.send(Packets.AnswerFetchObjects(
pack_tid, next_tid, next_oid, object_dict), msg_id)
next_tid, next_oid, object_dict), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass
......
neo/storage/replicator.py
View file @ 4c3b6c4d
......@@ -93,7 +93,7 @@ from neo.lib import logging
from neo.lib.protocol import CellStates, NodeTypes, NodeStates, \
Packets, INVALID_TID, ZERO_TID, ZERO_OID
from neo.lib.connection import ClientConnection, ConnectionClosed
from neo.lib.util import add64, dump, p64
from neo.lib.util import add64, dump, p64, u64
from .handlers.storage import StorageOperationHandler
FETCH_COUNT = 1000
......@@ -101,7 +101,10 @@ FETCH_COUNT = 1000
class Partition(object):
__slots__ = 'next_trans', 'next_obj', 'max_ttid'
__slots__ = 'next_trans', 'next_obj', 'max_ttid', 'pack'
def __init__(self):
self.pack = [], [] # approved, rejected
def __repr__(self):
return '<%s(%s) at 0x%x>' % (self.__class__.__name__,
......@@ -365,11 +368,13 @@ class Replicator(object):
assert self.current_node.getConnection().isClient(), self.current_node
offset = self.current_partition
p = self.partition_dict[offset]
dm = self.app.dm
if min_tid:
# More than one chunk ? This could be a full replication so avoid
# restarting from the beginning by committing now.
self.app.dm.commit()
dm.commit()
p.next_trans = min_tid
ask_pack_info = False
else:
try:
addr, name = self.source_dict[offset]
......@@ -383,11 +388,13 @@ class Replicator(object):
logging.debug("starting replication of <partition=%u"
" min_tid=%s max_tid=%s> from %r", offset, dump(min_tid),
dump(self.replicate_tid), self.current_node)
ask_pack_info = True
dm.checkNotProcessing(self.app, offset, min_tid)
max_tid = self.replicate_tid
tid_list = self.app.dm.getReplicationTIDList(min_tid, max_tid,
tid_list = dm.getReplicationTIDList(min_tid, max_tid,
FETCH_COUNT, offset)
self._conn_msg_id = self.current_node.ask(Packets.AskFetchTransactions(
offset, FETCH_COUNT, min_tid, max_tid, tid_list))
offset, FETCH_COUNT, min_tid, max_tid, tid_list, ask_pack_info))
def fetchObjects(self, min_tid=None, min_oid=ZERO_OID):
offset = self.current_partition
......@@ -398,10 +405,12 @@ class Replicator(object):
p.next_obj = min_tid
self.updateBackupTID()
dm.updateCellTID(offset, add64(min_tid, -1))
dm.commit() # like in fetchTransactions
else:
min_tid = p.next_obj
p.next_trans = add64(max_tid, 1)
if any(p.pack): # only useful in backup mode
p.pack = self.app.dm.signPackOrders(*p.pack, auto_commit=False)
dm.commit()
object_dict = {}
for serial, oid in dm.getReplicationObjectList(min_tid,
max_tid, FETCH_COUNT, offset, min_oid):
......@@ -429,6 +438,8 @@ class Replicator(object):
app.tm.replicated(offset, tid)
logging.debug("partition %u replicated up to %s from %r",
offset, dump(tid), self.current_node)
if app.pt.getCell(offset, app.uuid).isUpToDate():
app.maybePack() # only useful in backup mode
self.getCurrentConnection().setReconnectionNoDelay()
self._nextPartition()
......@@ -476,3 +487,22 @@ class Replicator(object):
' up to %s', offset, addr, dump(tid))
# Make UP_TO_DATE cells really UP_TO_DATE
self._nextPartition()
def filterPackable(self, tid, parts):
backup = self.app.dm.getBackupTID()
for offset in parts:
if backup:
p = self.partition_dict[offset]
if (None is not p.next_trans <= tid or
None is not p.next_obj <= tid):
continue
yield offset
def keepPendingSignedPackOrders(self, *args):
np = self.app.pt.getPartitions()
for i, x in enumerate(args):
for x in x:
try:
self.partition_dict[u64(x) % np].pack[i].append(x)
except KeyError:
pass
neo/storage/transactions.py
View file @ 4c3b6c4d
......@@ -42,6 +42,7 @@ class Transaction(object):
Container for a pending transaction
"""
_delayed = {}
pack = False
tid = None
voted = 0
......@@ -231,17 +232,22 @@ class TransactionManager(EventQueue):
raise ProtocolError("unknown ttid %s" % dump(ttid))
object_list = transaction.store_dict.itervalues()
if txn_info:
user, desc, ext, oid_list = txn_info
user, desc, ext, oid_list, pack = txn_info
txn_info = oid_list, user, desc, ext, False, ttid
transaction.voted = 2
else:
pack = None
transaction.voted = 1
# store metadata to temporary table
dm = self._app.dm
dm.storeTransaction(ttid, object_list, txn_info)
if pack:
transaction.pack = True
oid_list, pack_tid = pack
dm.storePackOrder(ttid, None, bool(oid_list), oid_list, pack_tid)
dm.commit()
def lock(self, ttid, tid):
def lock(self, ttid, tid, pack):
"""
Lock a transaction
"""
......@@ -256,7 +262,7 @@ class TransactionManager(EventQueue):
self._load_lock_dict.update(
dict.fromkeys(transaction.store_dict, ttid))
if transaction.voted == 2:
self._app.dm.lockTransaction(tid, ttid)
self._app.dm.lockTransaction(tid, ttid, pack)
else:
assert transaction.voted
......@@ -273,7 +279,8 @@ class TransactionManager(EventQueue):
dm = self._app.dm
dm.unlockTransaction(tid, ttid,
transaction.voted == 2,
transaction.store_dict)
transaction.store_dict,
transaction.pack)
self._app.em.setTimeout(time() + 1, dm.deferCommit())
self.abort(ttid, even_if_locked=True)
......@@ -564,10 +571,3 @@ class TransactionManager(EventQueue):
logging.info(' %s by %s', dump(oid), dump(ttid))
self.logQueuedEvents()
self.read_queue.logQueuedEvents()
def updateObjectDataForPack(self, oid, orig_serial, new_serial, data_id):
lock_tid = self.getLockingTID(oid)
if lock_tid is not None:
transaction = self._transaction_dict[lock_tid]
if transaction.store_dict[oid][2] == orig_serial:
transaction.store(oid, data_id, new_serial)
neo/tests/__init__.py
View file @ 4c3b6c4d
......@@ -25,6 +25,7 @@ import socket
import subprocess
import sys
import tempfile
import thread
import unittest
import weakref
import transaction
......@@ -38,10 +39,12 @@ except ImportError:
from cPickle import Unpickler
from functools import wraps
from inspect import isclass
from itertools import islice
from .mock import Mock
from neo.lib import debug, event, logging
from neo.lib.protocol import NodeTypes, Packet, Packets, UUID_NAMESPACES
from neo.lib.util import cached_property
from neo.storage.database.manager import DatabaseManager
from time import time, sleep
from struct import pack, unpack
from unittest.case import _ExpectedFailure, _UnexpectedSuccess
......@@ -77,6 +80,8 @@ DB_INSTALL = os.getenv('NEO_DB_INSTALL', 'mysql_install_db')
DB_MYSQLD = os.getenv('NEO_DB_MYSQLD', '/usr/sbin/mysqld')
DB_MYCNF = os.getenv('NEO_DB_MYCNF')
DatabaseManager.TEST_IDENT = thread.get_ident()
adapter = os.getenv('NEO_TESTS_ADAPTER')
if adapter:
from neo.storage.database import getAdapterKlass
......@@ -629,6 +634,10 @@ class Patch(object):
def __exit__(self, t, v, tb):
self.__del__()
def consume(iterator, n):
"""Advance the iterator n-steps ahead and returns the last consumed item"""
return next(islice(iterator, n-1, n))
def unpickle_state(data):
unpickler = Unpickler(StringIO(data))
unpickler.persistent_load = PersistentReferenceFactory().persistent_load
......
neo/tests/master/testClientHandler.py deleted 100644 → 0
View file @ 3204a4c6
#
# Copyright (C) 2009-2019 Nexedi SA
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
from ..mock import Mock
from .. import NeoUnitTestBase
from neo.lib.util import p64
from neo.lib.protocol import NodeTypes, NodeStates, Packets
from neo.master.app import Application
from neo.master.handlers.client import ClientServiceHandler
class MasterClientHandlerTests(NeoUnitTestBase):
def setUp(self):
NeoUnitTestBase.setUp(self)
# create an application object
config = self.getMasterConfiguration(master_number=1, replicas=1)
self.app = Application(config)
self.app.em.close()
self.app.em = Mock()
self.app.loid = '\0' * 8
self.app.tm.setLastTID('\0' * 8)
self.service = ClientServiceHandler(self.app)
# define some variable to simulate client and storage node
self.client_port = 11022
self.storage_port = 10021
self.client_address = ('127.0.0.1', self.client_port)
self.storage_address = ('127.0.0.1', self.storage_port)
self.storage_uuid = self.getStorageUUID()
# register the storage
self.app.nm.createStorage(
uuid=self.storage_uuid,
address=self.storage_address,
)
def identifyToMasterNode(self, node_type=NodeTypes.STORAGE, ip="127.0.0.1",
port=10021):
"""Do first step of identification to MN """
# register the master itself
uuid = self.getNewUUID(node_type)
self.app.nm.createFromNodeType(
node_type,
address=(ip, port),
uuid=uuid,
state=NodeStates.RUNNING,
)
return uuid
def test_askPack(self):
self.assertEqual(self.app.packing, None)
self.app.nm.createClient()
tid = self.getNextTID()
peer_id = 42
conn = self.getFakeConnection(peer_id=peer_id)
storage_uuid = self.storage_uuid
storage_conn = self.getFakeConnection(storage_uuid,
self.storage_address, is_server=True)
self.app.nm.getByUUID(storage_uuid).setConnection(storage_conn)
self.service.askPack(conn, tid)
self.checkNoPacketSent(conn)
ptid = self.checkAskPacket(storage_conn, Packets.AskPack)._args[0]
self.assertEqual(ptid, tid)
self.assertTrue(self.app.packing[0] is conn)
self.assertEqual(self.app.packing[1], peer_id)
self.assertEqual(self.app.packing[2], {storage_uuid})
# Asking again to pack will cause an immediate error
storage_uuid = self.identifyToMasterNode(port=10022)
storage_conn = self.getFakeConnection(storage_uuid,
self.storage_address, is_server=True)
self.app.nm.getByUUID(storage_uuid).setConnection(storage_conn)
self.service.askPack(conn, tid)
self.checkNoPacketSent(storage_conn)
status = self.checkAnswerPacket(conn, Packets.AnswerPack)._args[0]
self.assertFalse(status)
if __name__ == '__main__':
unittest.main()
neo/tests/master/testStorageHandler.py deleted 100644 → 0
View file @ 3204a4c6
#
# Copyright (C) 2009-2019 Nexedi SA
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
from ..mock import Mock
from .. import NeoUnitTestBase
from neo.lib.protocol import NodeTypes, Packets
from neo.master.app import Application
from neo.master.handlers.storage import StorageServiceHandler
class MasterStorageHandlerTests(NeoUnitTestBase):
def setUp(self):
NeoUnitTestBase.setUp(self)
# create an application object
config = self.getMasterConfiguration(master_number=1, replicas=1)
self.app = Application(config)
self.app.em.close()
self.app.em = Mock()
self.service = StorageServiceHandler(self.app)
def _allocatePort(self):
self.port = getattr(self, 'port', 1000) + 1
return self.port
def _getStorage(self):
return self.identifyToMasterNode(node_type=NodeTypes.STORAGE,
ip='127.0.0.1', port=self._allocatePort())
def identifyToMasterNode(self, node_type=NodeTypes.STORAGE, ip="127.0.0.1",
port=10021):
"""Do first step of identification to MN
"""
nm = self.app.nm
uuid = self.getNewUUID(node_type)
node = nm.createFromNodeType(node_type, address=(ip, port),
uuid=uuid)
conn = self.getFakeConnection(node.getUUID(), node.getAddress(), True)
node.setConnection(conn)
return (node, conn)
def test_answerPack(self):
# Note: incoming status has no meaning here, so it's left to False.
node1, conn1 = self._getStorage()
node2, conn2 = self._getStorage()
self.app.packing = None
# Does nothing
self.service.answerPack(None, False)
client_conn = Mock({
'getPeerId': 512,
})
client_peer_id = 42
self.app.packing = (client_conn, client_peer_id,
{conn1.getUUID(), conn2.getUUID()})
self.service.answerPack(conn1, False)
self.checkNoPacketSent(client_conn)
self.assertEqual(self.app.packing[2], {conn2.getUUID()})
self.service.answerPack(conn2, False)
packet = self.checkNotifyPacket(client_conn, Packets.AnswerPack)
# TODO: verify packet peer id
self.assertTrue(packet._args[0])
self.assertEqual(self.app.packing, None)
if __name__ == '__main__':
unittest.main()
neo/tests/protocol
View file @ 4c3b6c4d
......@@ -3,14 +3,14 @@ AbortTransaction(p64,[int])
AcceptIdentification(NodeTypes,?int,?int)
AddObject(p64,p64,int,bin,bin,?p64)
AddPendingNodes([int])
AddTransaction(p64,bin,bin,bin,bool,p64,[p64])
AddTransaction(p64,bin,bin,bin,bool,p64,[p64],?(?bool,bool,?[p64],p64))
AnswerBeginTransaction(p64)
AnswerCheckCurrentSerial(?p64)
AnswerCheckSerialRange(int,bin,p64,bin,p64)
AnswerCheckTIDRange(int,bin,p64)
AnswerClusterState(?ClusterStates)
AnswerFetchObjects(?,?p64,?p64,{:})
AnswerFetchTransactions(?,?p64,[])
AnswerFetchObjects(?p64,?p64,{:})
AnswerFetchTransactions(?p64,[],?p64)
AnswerFinalTID(p64)
AnswerInformationLocked(p64)
AnswerLastIDs(?p64,?p64)
......@@ -22,7 +22,7 @@ AnswerNodeList([(NodeTypes,?(bin,int),?int,NodeStates,?float)])
AnswerObject(p64,p64,?p64,?int,bin,bin,?p64)
AnswerObjectHistory(p64,[(p64,int)])
AnswerObjectUndoSerial({p64:(p64,?p64,bool)})
AnswerPack(bool)
AnswerPackOrders([(p64,?bool,bool,?[p64],p64)])
AnswerPartitionList(int,int,[[(int,CellStates)]])
AnswerPartitionTable(int,int,[[(int,CellStates)]])
AnswerPrimary(int)
......@@ -43,12 +43,12 @@ AskCheckSerialRange(int,int,p64,p64,p64)
AskCheckTIDRange(int,int,p64,p64)
AskClusterState()
AskFetchObjects(int,int,p64,p64,p64,{p64:[p64]})
AskFetchTransactions(int,int,p64,p64,[p64])
AskFetchTransactions(int,int,p64,p64,[p64],bool)
AskFinalTID(p64)
AskFinishTransaction(p64,[p64],[p64])
AskFinishTransaction(p64,[p64],[p64],?(?[p64],p64))
AskLastIDs()
AskLastTransaction()
AskLockInformation(p64,p64)
AskLockInformation(p64,p64,bool)
AskLockedTransactions()
AskMonitorInformation()
AskNewOIDs(int)
......@@ -56,14 +56,14 @@ AskNodeList(NodeTypes)
AskObject(p64,?p64,?p64)
AskObjectHistory(p64,int,int)
AskObjectUndoSerial(p64,p64,p64,[p64])
AskPack(p64)
AskPackOrders(p64)
AskPartitionList(int,int,?)
AskPartitionTable()
AskPrimary()
AskRecovery()
AskRelockObject(p64,p64)
AskStoreObject(p64,p64,int,bin,bin,?p64,?p64)
AskStoreTransaction(p64,bin,bin,bin,[p64])
AskStoreTransaction(p64,bin,bin,bin,[p64],?(?[p64],p64))
AskTIDs(int,int,int)
AskTIDsFrom(p64,p64,int,int)
AskTransactionInformation(p64)
......@@ -79,6 +79,8 @@ NotifyClusterInformation(ClusterStates)
NotifyDeadlock(p64,p64)
NotifyMonitorInformation({bin:any})
NotifyNodeInformation(float,[(NodeTypes,?(bin,int),?int,NodeStates,?float)])
NotifyPackCompleted(p64)
NotifyPackSigned([p64],[p64])
NotifyPartitionChanges(int,int,[(int,int,CellStates)])
NotifyPartitionCorrupted(int,[int])
NotifyReady()
......@@ -101,3 +103,5 @@ StopOperation()
Truncate(p64)
TweakPartitionTable(bool,[int])
ValidateTransaction(p64,p64)
WaitForPack(p64)
WaitedForPack()
neo/tests/storage/testStorageDBTests.py
View file @ 4c3b6c4d
......@@ -14,12 +14,15 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import string, unittest
from binascii import a2b_hex
from contextlib import closing, contextmanager
import unittest
from neo.lib.util import add64, p64, u64
from copy import copy
from neo.lib.util import add64, p64, u64, makeChecksum
from neo.lib.protocol import CellStates, ZERO_HASH, ZERO_OID, ZERO_TID, MAX_TID
from neo.storage.database.manager import MVCCDatabaseManager
from .. import NeoUnitTestBase
from ..mock import Mock
class StorageDBTests(NeoUnitTestBase):
......@@ -49,7 +52,9 @@ class StorageDBTests(NeoUnitTestBase):
uuid = self.getStorageUUID()
db.setUUID(uuid)
self.assertEqual(uuid, db.getUUID())
db.changePartitionTable(None, 1, 0,
app = Mock()
app.last_pack_id = ZERO_TID
db.changePartitionTable(app, 1, 0,
[(i, uuid, CellStates.UP_TO_DATE) for i in xrange(num_partitions)],
reset=True)
self.assertEqual(num_partitions, 1 + db._getMaxPartition())
......@@ -67,10 +72,10 @@ class StorageDBTests(NeoUnitTestBase):
def commitTransaction(self, tid, objs, txn, commit=True):
ttid = txn[-1]
self.db.storeTransaction(ttid, objs, txn)
self.db.lockTransaction(tid, ttid)
self.db.lockTransaction(tid, ttid, None)
yield
if commit:
self.db.unlockTransaction(tid, ttid, True, objs)
self.db.unlockTransaction(tid, ttid, True, objs, False)
self.db.commit()
elif commit is not None:
self.db.abortTransaction(ttid)
......@@ -189,25 +194,25 @@ class StorageDBTests(NeoUnitTestBase):
with self.commitTransaction(tid1, objs1, txn1), \
self.commitTransaction(tid2, objs2, txn2):
self.assertEqual(self.db.getTransaction(tid1, True),
([oid1], 'user', 'desc', 'ext', False, p64(1)))
([oid1], 'user', 'desc', 'ext', False, p64(1), None))
self.assertEqual(self.db.getTransaction(tid2, True),
([oid2], 'user', 'desc', 'ext', False, p64(2)))
([oid2], 'user', 'desc', 'ext', False, p64(2), None))
self.assertEqual(self.db.getTransaction(tid1, False), None)
self.assertEqual(self.db.getTransaction(tid2, False), None)
result = self.db.getTransaction(tid1, True)
self.assertEqual(result, ([oid1], 'user', 'desc', 'ext', False, p64(1)))
result = self.db.getTransaction(tid2, True)
self.assertEqual(result, ([oid2], 'user', 'desc', 'ext', False, p64(2)))
result = self.db.getTransaction(tid1, False)
self.assertEqual(result, ([oid1], 'user', 'desc', 'ext', False, p64(1)))
result = self.db.getTransaction(tid2, False)
self.assertEqual(result, ([oid2], 'user', 'desc', 'ext', False, p64(2)))
self.assertEqual(self.db.getTransaction(tid1, True),
([oid1], 'user', 'desc', 'ext', False, p64(1), None))
self.assertEqual(self.db.getTransaction(tid2, True),
([oid2], 'user', 'desc', 'ext', False, p64(2), None))
self.assertEqual(self.db.getTransaction(tid1, False),
([oid1], 'user', 'desc', 'ext', False, p64(1), None))
self.assertEqual(self.db.getTransaction(tid2, False),
([oid2], 'user', 'desc', 'ext', False, p64(2), None))
def test_deleteTransaction(self):
txn, objs = self.getTransaction([])
tid = txn[-1]
self.db.storeTransaction(tid, objs, txn, False)
self.assertEqual(self.db.getTransaction(tid), txn)
self.assertEqual(self.db.getTransaction(tid), txn + (None,))
self.db.deleteTransaction(tid)
self.assertEqual(self.db.getTransaction(tid), None)
......@@ -265,13 +270,13 @@ class StorageDBTests(NeoUnitTestBase):
with self.commitTransaction(tid1, objs1, txn1), \
self.commitTransaction(tid2, objs2, txn2, None):
pass
result = self.db.getTransaction(tid1, True)
self.assertEqual(result, ([oid1], 'user', 'desc', 'ext', False, p64(1)))
result = self.db.getTransaction(tid2, True)
self.assertEqual(result, ([oid2], 'user', 'desc', 'ext', False, p64(2)))
self.assertEqual(self.db.getTransaction(tid1, True),
([oid1], 'user', 'desc', 'ext', False, p64(1), None))
self.assertEqual(self.db.getTransaction(tid2, True),
([oid2], 'user', 'desc', 'ext', False, p64(2), None))
# get from non-temporary only
result = self.db.getTransaction(tid1, False)
self.assertEqual(result, ([oid1], 'user', 'desc', 'ext', False, p64(1)))
self.assertEqual(self.db.getTransaction(tid1, False),
([oid1], 'user', 'desc', 'ext', False, p64(1), None))
self.assertEqual(self.db.getTransaction(tid2, False), None)
def test_getObjectHistory(self):
......@@ -282,17 +287,17 @@ class StorageDBTests(NeoUnitTestBase):
txn3, objs3 = self.getTransaction([oid])
# one revision
self.db.storeTransaction(tid1, objs1, txn1, False)
result = self.db.getObjectHistory(oid, 0, 3)
result = self.db.getObjectHistoryWithLength(oid, 0, 3)
self.assertEqual(result, [(tid1, 0)])
result = self.db.getObjectHistory(oid, 1, 1)
result = self.db.getObjectHistoryWithLength(oid, 1, 1)
self.assertEqual(result, None)
# two revisions
self.db.storeTransaction(tid2, objs2, txn2, False)
result = self.db.getObjectHistory(oid, 0, 3)
result = self.db.getObjectHistoryWithLength(oid, 0, 3)
self.assertEqual(result, [(tid2, 0), (tid1, 0)])
result = self.db.getObjectHistory(oid, 1, 3)
result = self.db.getObjectHistoryWithLength(oid, 1, 3)
self.assertEqual(result, [(tid1, 0)])
result = self.db.getObjectHistory(oid, 2, 3)
result = self.db.getObjectHistoryWithLength(oid, 2, 3)
self.assertEqual(result, None)
def _storeTransactions(self, count):
......@@ -439,5 +444,31 @@ class StorageDBTests(NeoUnitTestBase):
db.findUndoTID(oid1, tid4, tid1, None),
(tid3, None, True))
def testDeferredPruning(self):
self.setupDB(1, True)
db = self.db
if isinstance(db, MVCCDatabaseManager):
self.assertFalse(db.nonempty('todel'))
self.assertEqual([
db.storeData(makeChecksum(x), ZERO_OID, x, 0, None)
for x in string.digits
], range(0, 10))
db2 = copy(db)
for x in (3, 9, 4), (4, 7, 6):
self.assertIsNone(db2._pruneData(x))
db.commit()
db2.commit()
for expected in (3, 4, 6), (7, 9):
self.assertTrue(db.nonempty('todel'))
x = db._dataIdsToPrune(3)
self.assertEqual(tuple(x), expected)
self.assertEqual(db._pruneData(x), len(expected))
self.assertFalse(db._dataIdsToPrune(3))
self.assertFalse(db2.nonempty('todel'))
self.assertEqual(db._pruneData(range(10)), 5)
self.assertFalse(db.nonempty('todel'))
else:
self.assertIsNone(db.nonempty('todel'))
if __name__ == "__main__":
unittest.main()
neo/tests/storage/testStorageMySQL.py
View file @ 4c3b6c4d
......@@ -30,13 +30,24 @@ from neo.storage.database.mysql import (MySQLDatabaseManager,
class ServerGone(object):
@contextmanager
def __new__(cls, db):
def __new__(cls, db, once):
self = object.__new__(cls)
with Patch(db, conn=self) as self._p:
yield self._p
with Patch(db, conn=self) as p:
if once:
self.__revert = p.revert
try:
yield p
finally:
del self.__revert
else:
with Patch(db, close=lambda orig: None):
yield
def __revert(self):
pass
def query(self, *args):
self._p.revert()
self.__revert()
raise OperationalError(SERVER_GONE_ERROR, 'this is a test')
......@@ -67,7 +78,7 @@ class StorageMySQLdbTests(StorageDBTests):
return db
def test_ServerGone(self):
with ServerGone(self.db) as p:
with ServerGone(self.db, True) as p:
self.assertRaises(ProgrammingError, self.db.query, 'QUERY')
self.assertFalse(p.applied)
......
neo/tests/storage/testTransactions.py deleted 100644 → 0
View file @ 3204a4c6
#
# Copyright (C) 2010-2019 Nexedi SA
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
from ..mock import Mock
from .. import NeoUnitTestBase
from neo.lib.util import p64
from neo.storage.transactions import TransactionManager
class TransactionManagerTests(NeoUnitTestBase):
def setUp(self):
NeoUnitTestBase.setUp(self)
self.app = Mock()
# no history
self.app.dm = Mock({'getObjectHistory': []})
self.app.pt = Mock({'isAssigned': True, 'getPartitions': 2})
self.app.em = Mock({'setTimeout': None})
self.manager = TransactionManager(self.app)
def register(self, uuid, ttid):
self.manager.register(Mock({'getUUID': uuid}), ttid)
def test_updateObjectDataForPack(self):
ram_serial = self.getNextTID()
oid = p64(1)
orig_serial = self.getNextTID()
uuid = self.getClientUUID()
locking_serial = self.getNextTID()
other_serial = self.getNextTID()
new_serial = self.getNextTID()
data_id = (1 << 48) + 2
self.register(uuid, locking_serial)
# Object not known, nothing happens
self.assertEqual(self.manager.getObjectFromTransaction(locking_serial,
oid), None)
self.manager.updateObjectDataForPack(oid, orig_serial, None, data_id)
self.assertEqual(self.manager.getObjectFromTransaction(locking_serial,
oid), None)
self.manager.abort(locking_serial, even_if_locked=True)
# Object known, but doesn't point at orig_serial, it is not updated
self.register(uuid, locking_serial)
self.manager.storeObject(locking_serial, ram_serial, oid, 0, "3" * 20,
'bar', None)
holdData = self.app.dm.mockGetNamedCalls('holdData')
self.assertEqual(holdData.pop(0).params,
("3" * 20, oid, 'bar', 0, None))
orig_object = self.manager.getObjectFromTransaction(locking_serial,
oid)
self.manager.updateObjectDataForPack(oid, orig_serial, None, data_id)
self.assertEqual(self.manager.getObjectFromTransaction(locking_serial,
oid), orig_object)
self.manager.abort(locking_serial, even_if_locked=True)
self.register(uuid, locking_serial)
self.manager.storeObject(locking_serial, ram_serial, oid, None, None,
None, other_serial)
orig_object = self.manager.getObjectFromTransaction(locking_serial,
oid)
self.manager.updateObjectDataForPack(oid, orig_serial, None, data_id)
self.assertEqual(self.manager.getObjectFromTransaction(locking_serial,
oid), orig_object)
self.manager.abort(locking_serial, even_if_locked=True)
# Object known and points at undone data it gets updated
self.register(uuid, locking_serial)
self.manager.storeObject(locking_serial, ram_serial, oid, None, None,
None, orig_serial)
self.manager.updateObjectDataForPack(oid, orig_serial, new_serial,
data_id)
self.assertEqual(self.manager.getObjectFromTransaction(locking_serial,
oid), (oid, data_id, new_serial))
self.manager.abort(locking_serial, even_if_locked=True)
self.register(uuid, locking_serial)
self.manager.storeObject(locking_serial, ram_serial, oid, None, None,
None, orig_serial)
self.manager.updateObjectDataForPack(oid, orig_serial, None, data_id)
self.assertEqual(self.manager.getObjectFromTransaction(locking_serial,
oid), (oid, data_id, None))
self.manager.abort(locking_serial, even_if_locked=True)
if __name__ == "__main__":
unittest.main()
neo/tests/stress.py
View file @ 4c3b6c4d
......@@ -200,7 +200,7 @@ class StressApplication(AdminApplication):
if conn:
conn.ask(Packets.AskLastIDs())
def answerLastIDs(self, loid, ltid):
def answerLastIDs(self, ltid, loid):
self.loid = loid
self.ltid = ltid
self.em.setTimeout(int(time.time() + 1), self.askLastIDs)
......
neo/tests/threaded/__init__.py
View file @ 4c3b6c4d
......@@ -555,8 +555,12 @@ class LoggerThreadName(str):
return id(self)
def __str__(self):
t = threading.currentThread()
if t.name == 'BackgroundWorker':
t, = t._Thread__args
return t().node_name
try:
return threading.currentThread().node_name
return t.node_name
except AttributeError:
return str.__str__(self)
......@@ -1078,6 +1082,20 @@ class NEOCluster(object):
self.storage_list[:] = (x[r] for r in r)
return self.storage_list
def ticAndJoinStorageTasks(self):
while True:
Serialized.tic()
for s in self.storage_list:
try:
join = s.dm._background_worker._thread.join
break
except AttributeError:
pass
else:
break
join()
class NEOThreadedTest(NeoTestBase):
__run_count = {}
......
neo/tests/threaded/test.py
View file @ 4c3b6c4d
......@@ -798,7 +798,9 @@ class Test(NEOThreadedTest):
def testStorageUpgrade1(self, cluster):
storage = cluster.storage
# Disable migration steps that aren't idempotent.
with Patch(storage.dm.__class__, _migrate3=lambda *_: None):
def noop(*_): pass
with Patch(storage.dm.__class__, _migrate3=noop), \
Patch(storage.dm.__class__, _migrate4=noop):
t, c = cluster.getTransaction()
storage.dm.setConfiguration("version", None)
c.root()._p_changed = 1
......@@ -1638,6 +1640,8 @@ class Test(NEOThreadedTest):
self.assertEqual(1, u64(c._storage.new_oid()))
for s in cluster.storage_list:
self.assertEqual(s.dm.getLastIDs()[0], truncate_tid)
# Warn user about noop truncation.
self.assertRaises(SystemExit, cluster.neoctl.truncate, truncate_tid)
def testConnectionAbort(self):
with self.getLoopbackConnection() as client:
......@@ -1776,7 +1780,7 @@ class Test(NEOThreadedTest):
for e, s in zip(expected, cluster.storage_list):
while 1:
self.tic()
if s.dm._repairing is None:
if s.dm._background_worker._orphan is None:
break
time.sleep(.1)
self.assertEqual(e, s.getDataLockInfo())
......@@ -2696,7 +2700,6 @@ class Test(NEOThreadedTest):
big_id_list = ('\x7c' * 8, '\x7e' * 8), ('\x7b' * 8, '\x7d' * 8)
for i in 0, 1:
dm = cluster.storage_list[i].dm
expected = dm.getLastTID(u64(MAX_TID)), dm.getLastIDs()
oid, tid = big_id_list[i]
for j, expected in (
(1 - i, (dm.getLastTID(u64(MAX_TID)), dm.getLastIDs())),
......@@ -2721,7 +2724,6 @@ class Test(NEOThreadedTest):
dump_dict[s.uuid] = dm.dump()
with open(path % (s.getAdapter(), s.uuid)) as f:
dm.restore(f.read())
dm.setConfiguration('partitions', None) # XXX: see dm._migrate4
with NEOCluster(storage_count=3, partitions=3, replicas=1,
name=self._testMethodName) as cluster:
s1, s2, s3 = cluster.storage_list
......
neo/tests/threaded/testImporter.py
View file @ 4c3b6c4d
......@@ -14,6 +14,7 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from contextlib import contextmanager
from cPickle import Pickler, Unpickler
from cStringIO import StringIO
from itertools import izip_longest
......@@ -213,8 +214,8 @@ class ImporterTests(NEOThreadedTest):
# does not import data too fast and we test read/write access
# by the client during the import.
dm = cluster.storage.dm
def doOperation(app):
del dm.doOperation
def operational(app):
del dm.operational
try:
while True:
if app.task_queue:
......@@ -222,7 +223,9 @@ class ImporterTests(NEOThreadedTest):
app._poll()
except StopIteration:
app.task_queue.pop()
dm.doOperation = doOperation
assert not app.task_queue
yield
dm.operational = contextmanager(operational)
cluster.start()
t, c = cluster.getTransaction()
r = c.root()['tree']
......@@ -234,12 +237,14 @@ class ImporterTests(NEOThreadedTest):
storage._cache.clear()
storage.loadBefore(r._p_oid, r._p_serial)
##
self.assertRaisesRegexp(NotImplementedError, " getObjectHistory$",
self.assertRaisesRegexp(NotImplementedError,
" getObjectHistoryWithLength$",
c.db().history, r._p_oid)
h = random_tree.hashTree(r)
h(30)
logging.info("start migration")
dm.doOperation(cluster.storage)
with dm.operational(cluster.storage):
pass
# Adjust if needed. Must remain > 0.
beforeCheck(h, 22)
# New writes after the switch to NEO.
......@@ -285,16 +290,18 @@ class ImporterTests(NEOThreadedTest):
x = type(db).__name__
if x == 'MySQLDatabaseManager':
from neo.tests.storage.testStorageMySQL import ServerGone
with ServerGone(db):
with ServerGone(db, False):
orig(db, *args)
self.fail()
else:
assert x == 'SQLiteDatabaseManager'
tid_list.append(None)
tid_list.insert(-1, None)
p.revert()
return orig(db, *args)
def sleep(orig, seconds):
logging.info("sleep(%s)", seconds)
self.assertEqual(len(tid_list), 5)
tid_list[-1] = None
p.revert()
with Patch(importer, FORK=False), \
Patch(TransactionRecord, __init__=__init__), \
......@@ -303,6 +310,7 @@ class ImporterTests(NEOThreadedTest):
self._importFromFileStorage()
self.assertFalse(p.applied)
self.assertEqual(len(tid_list), 13)
self.assertIsNone(tid_list[4])
def testThreadedWritebackWithUnbalancedPartitions(self):
N = 7
......@@ -409,7 +417,7 @@ class ImporterTests(NEOThreadedTest):
storage = cluster.storage
dm = storage.dm
with storage.patchDeferred(dm._finished):
with storage.patchDeferred(dm.doOperation):
with storage.patchDeferred(storage.newTask):
cluster.start()
s = cluster.getZODBStorage()
check() # before import
......
neo/tests/threaded/testPack.py 0 → 100644
View file @ 4c3b6c4d
This diff is collapsed.
neo/tests/threaded/testReplication.py
View file @ 4c3b6c4d
......@@ -34,7 +34,7 @@ from neo.lib.protocol import CellStates, ClusterStates, NodeStates, Packets, \
ZERO_OID, ZERO_TID, MAX_TID, uuid_str
from neo.lib.util import add64, p64, u64
from .. import Patch, TransactionalResource
from . import ConnectionFilter, NEOCluster, NEOThreadedTest, \
from . import ConnectionFilter, LockLock, NEOCluster, NEOThreadedTest, \
predictable_random, with_cluster
from .test import PCounter, PCounterWithResolution # XXX
......@@ -681,7 +681,7 @@ class ReplicationTests(NEOThreadedTest):
self.assertEqual(3, s0.sqlCount('obj'))
cluster.enableStorageList((s1,))
cluster.neoctl.tweakPartitionTable()
self.tic()
cluster.ticAndJoinStorageTasks()
self.assertEqual(1, s1.sqlCount('obj'))
self.assertEqual(2, s0.sqlCount('obj'))
......@@ -732,7 +732,7 @@ class ReplicationTests(NEOThreadedTest):
self.assertEqual(tids, getTIDList())
t0_next = add64(tids[0], 1)
self.assertEqual(ask, [
(t0_next, tids[2], tids[2:]),
(t0_next, tids[2], tids[2:], True),
(t0_next, tids[2], ZERO_OID, {tids[2]: [ZERO_OID]}),
])
......@@ -855,9 +855,9 @@ class ReplicationTests(NEOThreadedTest):
t1_next = add64(tids[1], 1)
self.assertEqual(ask, [
# trans
(0, 1, t1_next, tids[4], []),
(0, 1, tids[3], tids[4], []),
(0, 1, tids[4], tids[4], []),
(0, 1, t1_next, tids[4], [], True),
(0, 1, tids[3], tids[4], [], False),
(0, 1, tids[4], tids[4], [], False),
# obj
(0, 1, t1_next, tids[4], ZERO_OID, {}),
(0, 1, tids[2], tids[4], p64(2), {}),
......@@ -871,9 +871,9 @@ class ReplicationTests(NEOThreadedTest):
n = replicator.FETCH_COUNT
t4_next = add64(tids[4], 1)
self.assertEqual(ask, [
(0, n, t4_next, tids[5], []),
(0, n, t4_next, tids[5], [], True),
(0, n, tids[3], tids[5], ZERO_OID, {tids[3]: [ZERO_OID]}),
(1, n, t1_next, tids[5], []),
(1, n, t1_next, tids[5], [], True),
(1, n, t1_next, tids[5], ZERO_OID, {}),
])
self.tic()
......@@ -1060,7 +1060,7 @@ class ReplicationTests(NEOThreadedTest):
ClusterStates.RECOVERING)
@with_cluster(partitions=5, replicas=2, storage_count=3)
def testCheckReplicas(self, cluster):
def testCheckReplicas(self, cluster, corrupted_state=False):
from neo.storage import checker
def corrupt(offset):
s0, s1, s2 = (storage_dict[cell.getUUID()]
......@@ -1070,11 +1070,12 @@ class ReplicationTests(NEOThreadedTest):
s1.dm.deleteObject(p64(np+offset), p64(corrupt_tid))
return s0.uuid
def check(expected_state, expected_count):
self.assertEqual(expected_count, len([None
self.assertEqual(expected_count if corrupted_state else 0, sum(
cell[1] == CellStates.CORRUPTED
for row in cluster.neoctl.getPartitionRowList()[2]
for cell in row
if cell[1] == CellStates.CORRUPTED]))
self.assertEqual(expected_state, cluster.neoctl.getClusterState())
for cell in row))
self.assertEqual(cluster.neoctl.getClusterState(),
expected_state if corrupted_state else ClusterStates.RUNNING)
np = cluster.num_partitions
tid_count = np * 3
corrupt_tid = tid_count // 2
......@@ -1100,6 +1101,11 @@ class ReplicationTests(NEOThreadedTest):
self.tic()
check(ClusterStates.RECOVERING, 4)
def testCheckReplicasCorruptedState(self):
from neo.master.handlers import storage
with Patch(storage, EXPERIMENTAL_CORRUPTED_STATE=True):
self.testCheckReplicas(True)
@backup_test()
def testBackupReadOnlyAccess(self, backup):
"""Check backup cluster can be used in read-only mode by ZODB clients"""
......@@ -1202,6 +1208,28 @@ class ReplicationTests(NEOThreadedTest):
# (XXX see above about invalidations not working)
Zb.close()
@backup_test()
def testBackupPack(self, backup):
"""Check asynchronous replication during a pack"""
upstream = backup.upstream
importZODB = upstream.importZODB()
importZODB(10)
tid = upstream.last_tid
importZODB(10)
def _task_pack(orig, *args):
ll()
orig(*args)
with LockLock() as ll:
with Patch(backup.storage.dm._background_worker,
_task_pack=_task_pack):
upstream.client.pack(tid)
self.tic()
ll()
importZODB(10)
upstream.ticAndJoinStorageTasks()
backup.ticAndJoinStorageTasks()
self.assertEqual(1, self.checkBackup(backup))
if __name__ == "__main__":
unittest.main()
neo/tests/zodb/__init__.py
View file @ 4c3b6c4d
......@@ -16,7 +16,8 @@
import os
from .. import DB_PREFIX
from neo.client.app import Application as ClientApplication, TXN_PACK_DESC
from .. import DB_PREFIX, Patch
functional = int(os.getenv('NEO_TEST_ZODB_FUNCTIONAL', 0))
if functional:
from ..functional import NEOCluster, NEOFunctionalTest as TestCase
......@@ -29,6 +30,16 @@ else:
class ZODBTestCase(TestCase):
def undoLog(orig, *args, **kw):
return [txn for txn in orig(*args, **kw)
if txn['description'] != TXN_PACK_DESC]
_patches = (
Patch(ClientApplication, undoLog=undoLog),
Patch(ClientApplication, wait_for_pack=True),
)
del undoLog
def setUp(self):
super(ZODBTestCase, self).setUp()
storages = int(os.getenv('NEO_TEST_ZODB_STORAGES', 1))
......@@ -41,6 +52,8 @@ class ZODBTestCase(TestCase):
if functional:
kw['temp_dir'] = self.getTempDirectory()
self.neo = NEOCluster(**kw)
for p in self._patches:
p.apply()
def __init__(self, methodName):
super(ZODBTestCase, self).__init__(methodName)
......@@ -51,7 +64,20 @@ class ZODBTestCase(TestCase):
self.neo.start()
self.open()
test(self)
if not functional:
if functional:
dm = self._getDatabaseManager()
try:
@self.neo.expectCondition
def _(last_try):
dm.commit()
dm.setup()
x = dm.nonempty('todel'), dm._uncommitted_data
return not any(x), x
orphan = dm.getOrphanList()
finally:
dm.close()
else:
self.neo.ticAndJoinStorageTasks()
orphan = self.neo.storage.dm.getOrphanList()
failed = False
finally:
......@@ -60,24 +86,22 @@ class ZODBTestCase(TestCase):
self.neo.stop(ignore_errors=failed)
else:
self.neo.stop(None)
if functional:
dm = self.neo.getSQLConnection(*self.neo.db_list)
try:
dm.setup()
orphan = set(dm.getOrphanList())
orphan.difference_update(dm._uncommitted_data)
finally:
dm.close()
self.assertFalse(orphan)
setattr(self, methodName, runTest)
def _tearDown(self, success):
for p in self._patches:
p.revert()
del self.neo
super(ZODBTestCase, self)._tearDown(success)
assertEquals = failUnlessEqual = TestCase.assertEqual
assertNotEquals = failIfEqual = TestCase.assertNotEqual
if functional:
def _getDatabaseManager(self):
return self.neo.getSQLConnection(*self.neo.db_list)
def open(self, **kw):
self._open(_storage=self.neo.getZODBStorage(**kw))
......
neo/tests/zodb/testZODB.py
View file @ 4c3b6c4d
This diff is collapsed.
tools/stress
View file @ 4c3b6c4d
This diff is collapsed.
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