[QPID-7326] Memory bloat on HA primary broker

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.32
• Fix Version/s: qpid-cpp-1.35.0
• Component/s: C++ Broker
• Assignee: Alan Conway
• Reporter: Alan Conway
• Created: 27/Jun/16 21:14
• Updated: 06/Sep/16 21:32
• Resolved: 27/Jun/16 21:56

Description

Description of problem:
Having a consumer that (in a loop):

• creates an autoDelete queue
• subscribes to it
• unsubscribes
  against a HA cluster, primary broker memory consumption grows over the time.

Version-Release number of selected component (if applicable):
0.34-6
0.34-15

How reproducible:
100%

Steps to Reproduce:
1. Start 3 brokers in a HA cluster (mine reproducer uses options:

qpidd --port=5672 --store-dir=_5672 --log-to-file=qpidd.5672.log --data-dir=_5672 --auth=no --log-to-stderr=no --ha-cluster=yes --ha-brokers-url=localhost:5672,localhost:5673,localhost:5674,localhost:5675,localhost:5676 --ha-replicate=all --acl-file=/root/qpidd.acl --link-maintenance-interval=5
)

2. Run simple qpid-receive in a loop:
while true; do
qpid-receive -a "autoDelQueue; {create:always, node:{ x-declare:

{auto-delete:True}

}}"
sleep 0.1
done

3. Monitor memory usage of primary broker.

Actual results:

• memory usage grows over the time (just of primary broker, backup ones are OK)

Expected results:

• no memory usage growth

Additional info:

• I think HA cluster is necessary condition (i.e. bug does not occur on standalone broker), but I will test it

See also https://bugzilla.redhat.com/show_bug.cgi?id=1350023 .