This should improve replication & pack performance.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2415 71dcc9de-d417-0410-9af5-da40c76e7ee4

- set master_conn to None to clarify disconnection
- purge node pool after closing all connections
- allow restarting polling thread after its shutdown
Also, only start polling thread when needed (side-effect of last point).

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Otherwise, we would check the same chunk multiple times, if last range
check was successful: at this point, we wouldn't know criterion to find
the first row after replicated chunk.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2411 71dcc9de-d417-0410-9af5-da40c76e7ee4

This caused incorrect object deletions during replication, when a chunk
lacks rows.

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deleteTransaction is used by replication to remove a single transaction but
not its content.

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Otherwise, it might not be called (it connector is not present at
transaction manager's "begin" call time).

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If current chunk size is lesser than maximum, it means latest check for the
whole chunk found a problem. If current smaller check succeeded, move to
the other half and divide size by two.
Also, factorise replication "check...Range" handlers.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2405 71dcc9de-d417-0410-9af5-da40c76e7ee4

This way, it is clear that test doesn't expect replication to end after
current chunk.

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This prevents lines from next setUp from showing up in test's log.
This is not so nice to have to call it here, but it is probably an
artificial-enough use case to justify this.

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There is no reason why we wouldn't see this when runing individual
tests, I think.

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Also, improve exit condition readability.

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Was enabled accidentally in r2371.

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But make it optional, as some tests might want to stop everything
except clients (stopping single processes is already possible
separately).

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2388 71dcc9de-d417-0410-9af5-da40c76e7ee4

Call it in client, right after starting and stopping poll thread.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2387 71dcc9de-d417-0410-9af5-da40c76e7ee4

Fixes thread flood in ZODB tests (at least).

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It usually happens when tests are stuck, and we want to know where it
was stuck.

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This is because verification handler doesn't implement responses to
questions sent by a storage node after it receives the order to start.

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This makes it easier to control logging in runner (otherwise, would
go to stderr) and functional tests (directed to its own file).

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2377 71dcc9de-d417-0410-9af5-da40c76e7ee4

This was broken by r2371: it is good not to import it at file top-level,
but it must still be provided.
Also, fix 'No handler could be found for logger "NEO"' error messages,
which where hiding log messages, by using setupLog.
Also, manually set propagate to 0 so NEO messages are not output by root
logger too.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2376 71dcc9de-d417-0410-9af5-da40c76e7ee4