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Posted to dev@qpid.apache.org by "Chuck Rolke (JIRA)" <ji...@apache.org> on 2012/10/18 22:06:03 UTC
[jira] [Created] (QPID-4378) C++ Broker deletes dynamic bridges too
aggressively
Chuck Rolke created QPID-4378:
---------------------------------
Summary: C++ Broker deletes dynamic bridges too aggressively
Key: QPID-4378
URL: https://issues.apache.org/jira/browse/QPID-4378
Project: Qpid
Issue Type: Bug
Components: C++ Broker
Affects Versions: 0.18
Environment: C++ Broker
Reporter: Chuck Rolke
Assignee: Chuck Rolke
If a dynamic bridge's session has been detached while attempting to propagate a binding event, the broker will delete the bridge. Normally, a detached bridge session will be automatically recovered during the maintenance periodic if possible. Needless to say, auto-deleting the bridge upon a session error prevents this normal recovery path from occurring.
This event can occur in a production system during broker startup/federation and also during source broker recovery since there is a potential race condition between creation of the source exchange and the creation of the dynamic bridge on the destination broker.
Log Message:
Sep 30 19:41:40 localhost qpidd[10497]: 2012-09-30 19:41:40 [Broker] error Cannot propagate binding for dynamic bridge as session has been detached, deleting dynamic bridge
Steps to reproduce:
# src broker: localhost:5801
# dst broker: localhost:5803
#
# Create exchange in dst broker
#
qpid-config -b localhost:5803 add exchange topic fed.topic
#
# create dynamic bridge
#
qpid-route dynamic add localhost:5803 localhost:5801 fed.topic
#
# create dst queue as bind target
#
qpid-config -b localhost:5803 add queue fed.topic.queue
#
# create binding on dest exchange
#
qpid-config -b localhost:5803 bind fed.topic fed.topic.queue
qpid-config -b localhost:5803 unbind fed.topic fed.topic.queue
# The unbind should not delete the bridge.
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[jira] [Resolved] (QPID-4378) C++ Broker deletes dynamic bridges
too aggressively
Posted by "Chuck Rolke (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/QPID-4378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chuck Rolke resolved QPID-4378.
-------------------------------
Resolution: Fixed
Fix Version/s: 0.19
Fix with r1399837.
Reviewed by Ted Ross.
> C++ Broker deletes dynamic bridges too aggressively
> ---------------------------------------------------
>
> Key: QPID-4378
> URL: https://issues.apache.org/jira/browse/QPID-4378
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker
> Affects Versions: 0.18
> Environment: C++ Broker
> Reporter: Chuck Rolke
> Assignee: Chuck Rolke
> Fix For: 0.19
>
>
> If a dynamic bridge's session has been detached while attempting to propagate a binding event, the broker will delete the bridge. Normally, a detached bridge session will be automatically recovered during the maintenance periodic if possible. Needless to say, auto-deleting the bridge upon a session error prevents this normal recovery path from occurring.
> This event can occur in a production system during broker startup/federation and also during source broker recovery since there is a potential race condition between creation of the source exchange and the creation of the dynamic bridge on the destination broker.
> Log Message:
> Sep 30 19:41:40 localhost qpidd[10497]: 2012-09-30 19:41:40 [Broker] error Cannot propagate binding for dynamic bridge as session has been detached, deleting dynamic bridge
> Steps to reproduce:
> # src broker: localhost:5801
> # dst broker: localhost:5803
> #
> # Create exchange in dst broker
> #
> qpid-config -b localhost:5803 add exchange topic fed.topic
> #
> # create dynamic bridge
> #
> qpid-route dynamic add localhost:5803 localhost:5801 fed.topic
> #
> # create dst queue as bind target
> #
> qpid-config -b localhost:5803 add queue fed.topic.queue
> #
> # create binding on dest exchange
> #
> qpid-config -b localhost:5803 bind fed.topic fed.topic.queue
> qpid-config -b localhost:5803 unbind fed.topic fed.topic.queue
> # The unbind should not delete the bridge.
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