[ https://issues.apache.org/jira/browse/QPID-4286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Justin Ross updated QPID-4286: ------------------------------ Fix Version/s: 0.19 > QMF queries for HA replication take too long to process > ------------------------------------------------------- > > Key: QPID-4286 > URL: https://issues.apache.org/jira/browse/QPID-4286 > Project: Qpid > Issue Type: Bug > Components: C++ Broker > Affects Versions: 0.18 > Reporter: Jason Dillaman > Assignee: Alan Conway > Fix For: 0.19 > > Attachments: qpid-4286-fixes.patch, qpid-4286.patch > > > In an HA broker with approximately 12,000 queues, it takes roughly 10-14 > seconds for the the first QMF response fragment to arrive. While the QMF > management agent is collecting the response, all other QMF-related > functionality is blocked -- which will block any thread that raises a QMF > event. > Not only will this result in clients getting disconnected from the broker due > to worker threads being blocked by QMF (either due to missed heartbeats in an > extreme case or from the 2 second handshake timeout), this also results in > the HA backup's federated link getting disconnected due to missed heartbeats > when the link heartbeat interval is set to a low value. > If the HA backup loses its connection, it only exacerbates the issue since it > will reconnect and re-query the QMF data that made it lose its connection in > the first place. > Recommend that QMF events not be blocked by a global management agent lock > and also recommend that potentially long-running QMF queries be separated > from the worker thread that initiated them to prevent a heartbeat timeout. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For additional commands, e-mail: dev-h...@qpid.apache.org