git-svn-id: https://svn.erp5.org/repos/neo/trunk@2171 71dcc9de-d417-0410-9af5-da40c76e7ee4

A connection lost no more abort current transactions and clean the node
index (by calling abortFor). Do this job each time a transaction aborted
to avoid empty entries and memory leaks.

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Bug reported by Gaël Le Mignot: in a sample case he encountered,
"description" was a unicode object, causing encoding failure in packet
construction.
Python "str" is used in ZODB FileStorage code (see format.py), so just do
the same.

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ConnectorConnectionClosedException might get triggered when notifying a
node about transaction abortion, causing tpc_abort to fail eating pending
answers and clearing local_var.
Swallow all exceptions (various network problems translating to various
exceptions).

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2164 71dcc9de-d417-0410-9af5-da40c76e7ee4

This avoids sending multiple abort messages for each storage node (one per
partition it is assigned to).

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When a delayed store is processed, don't take the lock if the transaction
is no more registered (may have been aborted due to a timeout with the
delayed store).
Change the TransactionManager API: add register() that must be called before
any storeObject/storeTransaction operation.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2159 71dcc9de-d417-0410-9af5-da40c76e7ee4

This requires the live debugger to be enabled. Only master, storage and
client side handle this signal.

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If the last storage node gets disconnected, an operation failure will
occur, so there is no risk of sending AnswerTransactionFinished to client
if some object was not stored.

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onStoreTimeout is called by poll thread, which causes a new local_var to be
implicitly created with a new queue (specific to poll thread, which isn't
supposed to have one).
To know the queue that should receive AnswerHasLock, reuse the one
registered to dispatcher to receive AnswerStoreObject.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2144 71dcc9de-d417-0410-9af5-da40c76e7ee4

Make it optional, to suit "ping" use, but check that it's always passed
except in that special case.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2143 71dcc9de-d417-0410-9af5-da40c76e7ee4

This fixes cases where a thread is expecting some answer from queue, and
a packet gets forgotten, as it would block until next expected packet
arrives (if there is no next packet, it will wait forever).

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- Merge sys.exit()
- Remove exit message
- Move out of loop the code that should run once
- Add an XXX

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This check was always false in the case of a client.
Move the 'node is None' condition in the potential scope.

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Keep lock around _initNodeConnection() in connection pool to avoid concurrent
connections to the same storage node.

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