[QPID-7150] HA memory leak in primary broker when overwriting messages in a ring queue

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 0.32
• Component/s: C++ Clustering
• Assignee: Alan Conway
• Reporter: Alan Conway
• Created: 17/Mar/16 14:44
• Updated: 22/Mar/16 12:29
• Resolved: 22/Mar/16 12:29

Description

From https://bugzilla.redhat.com/show_bug.cgi?id=1318180

HA memory leak in primary broker when overwriting messages in a ring queue

ReplicatingSubscription accumulates IDs of dequeued messages to send on
dispatch. It should clear the accumulated IDs once sent. Due to a merge error,
since:

014f0f3 QPID-4327: HA TX transactions: basic replication.

The ID set is not cleared, causing it to accumulate memory slowly.

This leak would be particularly noticeable on a busy ring-queue since a
ring-queue generates a dequeue event for every enqueue once it reaches its max
size.

Issue Links

• duplicates: QPID-7149 [HA] active HA broker memory leak when ring queue discards overflow messages