Possible replay of old messages post index recovery from journal - data files
containing acks reclaimed/cleaned up in error
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Key: AMQ-2832
URL: https://issues.apache.org/activemq/browse/AMQ-2832
Project: ActiveMQ
Issue Type: Bug
Components: Broker
Affects Versions: 5.3.2
Reporter: Gary Tully
Assignee: Gary Tully
Fix For: 5.4.0
With long lived messages and outstanding acks, ack distribution can be sparse
across data files. If a data file is in use (still has unreferenced messages,
the data files containing acks for all those messages also need to be
maintained to ensure a replay of the journal replays the corresponding acks.
Currently it is possible that data files with no unreferenced messages but with
acks pertinent to an in use data file can get deleted. The result is duplicate
or relay of old messages after journal recovery (following a crash/restart)
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