[AMQ-6131] Durable subscription rewrote in journal can be to agressive and cause message loss on recovery

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.12.0, 5.12.1, 5.13.0
• Fix Version/s: 5.13.1, 5.14.0
• Component/s: KahaDB
• Assignee: Timothy A. Bish
• Reporter: Timothy A. Bish
• Created: 18/Jan/16 22:26
• Updated: 19/Jan/16 15:53
• Resolved: 18/Jan/16 22:48

Description

The compaction logic that attempt to move a durable subscription commands forward in the journal when the subscription has no pending messages is to aggressive and can rewrite to early leading to loss of messages if the state is recovered from the journal instead of having a valid index to read from.

Issue Links

• is related to: AMQ-4212 Broker may be unable to recover durable topic subscription from the kahadb journal
• is related to: AMQ-6133 Message updates can cause message loss on recovery