J/Connector 5.0.4 bug #24721 may prevent a vdb from shutting down safely
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Key: SEQUOIA-861
URL: https://forge.continuent.org/jira/browse/SEQUOIA-861
Project: Sequoia
Type: Bug
Versions: Sequoia 2.10.2
Reporter: Damian Arregui
Assigned to: Damian Arregui
Fix For: Sequoia 2.10.3
When Statement.cancel() and Statement.close() are executed by two different
threads, a race condition may result in Statement.cancel() throwing a NPE. This
leaves Sequoia in an unexpected state which may prevent a vdb from shutting
down safely.
Such a behavior has been observed when using Statement.setQueryTimeout(). What
happens in this particular case is that a DistributedRollback message remains
in the vdb total order queue and is never removed, blocking any subsequent
messages, and in particular those tied to safe vdb shutdown.
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