Also, make HandlerSwitcher.isPending() return a boolean, to avoid leaking
instance content to foreign code.

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There are 2 possibilities when an object is not found:
- the object doesn't exist at all
- the object exists, but nothing matches serial criterion

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git-svn-id: https://svn.erp5.org/repos/neo/trunk@2255 71dcc9de-d417-0410-9af5-da40c76e7ee4

r2242 removed the case where we wouldn't be abdle to access the last
version of an object with loadBefore, and its test code is reused here to
check the "not visible" case.
r2250 modified the response in case where an internal error occured.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2254 71dcc9de-d417-0410-9af5-da40c76e7ee4

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Also, fix _load error message, as only data inconsistency can lead to -1
error code now (and it is set locally).

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git-svn-id: https://svn.erp5.org/repos/neo/trunk@2239 71dcc9de-d417-0410-9af5-da40c76e7ee4

There is nothing to clean on the master side when a client abort a
transaction.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2238 71dcc9de-d417-0410-9af5-da40c76e7ee4

Master transactions objects are instanciated during the finish phase only,
which means that any transaction known by the master is being committed.

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FileStorage.copyTransactionsFrom doesn't have a verbose parameter in its
latest version.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2231 71dcc9de-d417-0410-9af5-da40c76e7ee4

Avoid switching to an unexpected interpreter after forking.

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This has been deprecated at least in Zope 2.8.8, maybe earlier.

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Also, reverts r2197, as it is unclear what bug it was trying to fix, and it
doens't seem required (there is no call to Replicator.act() outside of
doOperation).

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2223 71dcc9de-d417-0410-9af5-da40c76e7ee4

This causes garbage collection problems, as BaseConnection instances also
hold a reference to HandlerSwitcher instance. It is unclear why it fails,
as microbenchs show this should not be a problem for gc.
Also, move loggers out of HandlerSwitcher.setHandler to avoid passing a
connection parameter just for them.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2222 71dcc9de-d417-0410-9af5-da40c76e7ee4

It is more efficient to provide a boundary value than a row count range.
This fixes replication on partitions with a large number of objects, revisions
or transactions: query time is now constant where it used to increase, causing
timeout problems when query duration exceeded ping time + ping timeout (11s
currently).

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