1. 16 Aug, 2019 3 commits
    • Julien Muchembled's avatar
      Bump protocol version · c681f666
      Julien Muchembled authored
    • Julien Muchembled's avatar
      protocol: small cleanup in packet registration · c156f11a
      Julien Muchembled authored
      Same as commit a00ab78b.
      It was reverted mistakenly when switching to msgpack.
    • Julien Muchembled's avatar
      New feature: monitoring · e434c253
      Julien Muchembled authored
      This task is done by the admin node, in 2 possible ways:
      - email notifications, as soon as some state change;
      - new 'neoctl print summary' command that can be used periodically
        to check the health of the database.
      They report the same information.
      About backup clusters:
      The admin of the main cluster also monitors selected backup clusters,
      with the help of their admin nodes.
      Internally, when a backup master node connects to the upstream master node,
      it receives the address of the upstream admin node and forwards it to its
      admin node, which is therefore able to connect to the upstream admin node.
      So the 2 admin nodes remain connected and communicate in 2 ways:
      - the backup node notifies upstream about the health of the backup cluster;
      - the upstream node queries the backup node periodically to check whether
        replication is not too late.
      A few things are hard-coded and we may want to configure them:
      - backup lateness is checked every 10 min;
      - backup is expected to never be late.
      There's also no delay to prevent 2 consecutive emails from having the same
      Date: (unfortunately, the RFC 5322 does not allow sub-second precision),
      in which case the MUA can display them in random order. This is mostly
      confusing when one notification is OK and the other is not, because one
      may wonder if there's a new problem.
  2. 05 Jun, 2019 2 commits
    • Julien Muchembled's avatar
      Introduce extra node properties · 82c142c4
      Julien Muchembled authored
      Explicit fields in RequestIdentification are only suitable for the actual
      identification or for properties that most nodes have.
      But some current (and future) features require to pass values (always and
      as soon as possible) for tasks that are unrelated to identification.
    • Julien Muchembled's avatar
      admin: fix misuse of Packet.setId · 2b9e14e8
      Julien Muchembled authored
      What Packet.setId does was overridden by Connection.answer
      and that would have broken concurrent queries to the admin node
      (this is something we currently don't do).
  3. 29 May, 2019 1 commit
  4. 28 May, 2019 1 commit
  5. 24 May, 2019 1 commit
  6. 20 May, 2019 1 commit
  7. 09 May, 2019 3 commits
  8. 30 Apr, 2019 3 commits
    • Julien Muchembled's avatar
      importer: fix writeback of transactions during which readCurrent() was used · 042f5ac0
      Julien Muchembled authored
      Contrary to FileStorage, NEO remembers uses of readCurrent().
    • Julien Muchembled's avatar
    • Julien Muchembled's avatar
      master: fix crash in STARTING_BACKUP when connecting to an upstream secondary master · dba07e72
      Julien Muchembled authored
      This fixes the following assertion:
        Traceback (most recent call last):
          File "neo/master/app.py", line 172, in run
          File "neo/master/app.py", line 182, in _run
          File "neo/master/app.py", line 302, in playPrimaryRole
          File "neo/master/backup_app.py", line 114, in provideService
            node, conn = bootstrap.getPrimaryConnection()
          File "neo/lib/bootstrap.py", line 74, in getPrimaryConnection
          File "neo/lib/event.py", line 160, in poll
          File "neo/lib/connection.py", line 504, in process
            self._handlers.handle(self, self._queue.pop(0))
          File "neo/lib/connection.py", line 92, in handle
            self._handle(connection, packet)
          File "neo/lib/connection.py", line 107, in _handle
            pending[0][1].packetReceived(connection, packet)
          File "neo/lib/handler.py", line 125, in packetReceived
          File "neo/lib/handler.py", line 75, in dispatch
            method(conn, *args, **kw)
          File "neo/lib/handler.py", line 159, in notPrimaryMaster
            assert primary != self.app.server
        AttributeError: 'BackupApplication' object has no attribute 'server'
  9. 28 Apr, 2019 3 commits
    • Julien Muchembled's avatar
      qa: add testrunner options to dump/check the format of network packets · e3cd5c5b
      Julien Muchembled authored
      With the switch to msgpack, there was no schema anymore whereas it was
      sometimes used for both automatic conversion (e.g. the last argument of
      AskStoreTransaction must now be explicitly cast to list) and type checking.
      This somewhat reintroduces a kind of schema that:
      - is used by the test suite for type checking
      - can be generated automatically from the test suite
        when one change the procotol
    • Julien Muchembled's avatar
      protocol: switch to msgpack for packet serialization · 9d0bf97a
      Julien Muchembled authored
      Not only for performance reasons (at least 3% faster) but also because of
      several ugly things in the way packets were defined:
      - packet field names, which are only documentary; for roots fields,
        they even just duplicate the packet names
      - a lot of repetitions for packet names, and even confusion between the name
        of the packet definition and the name of the actual notify/request packet
      - the need to implement field types for anything, like PByte to support new
        compression formats, since PBoolean is not enough
      neo/lib/protocol.py is now much smaller.
    • Julien Muchembled's avatar
      Release version 1.12 · 6332112c
      Julien Muchembled authored
  10. 27 Apr, 2019 12 commits
  11. 26 Apr, 2019 4 commits
  12. 16 Apr, 2019 5 commits
  13. 05 Apr, 2019 1 commit