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  1. ActiveMQ
  2. AMQ-6203

KahaDB: Allow rewrite of message acks in older logs which prevent cleanup

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 5.13.0, 5.13.1, 5.12.3, 5.13.2
    • Fix Version/s: 5.13.3, 5.14.0
    • Component/s: KahaDB
    • Labels:
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      Description

      There are cases where a chain of journal logs can grow due to acks for messages in older logs needing to be kept so that on recovery proper state can be restored and older messages not be resurrected.

      In many cases just moving the acks from one log forward to a new log can free an entire chain during subsequent GC cycles. The 'compacted' ack log can be written during the time between GC cycles without the index lock being held meaning normal broker operations can continue.

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              • Assignee:
                tabish Timothy A. Bish
                Reporter:
                tabish Timothy A. Bish
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                • Created:
                  Updated:
                  Resolved: