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Posted to dev@qpid.apache.org by "Rajith Attapattu (JIRA)" <qp...@incubator.apache.org> on 2009/03/16 17:03:50 UTC
[jira] Commented: (QPID-1692) Set the sync bit periodically to
force the broker to send completions
[ https://issues.apache.org/jira/browse/QPID-1692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12682345#action_12682345 ]
Rajith Attapattu commented on QPID-1692:
----------------------------------------
A fix has been commited to Qpid trunk at rev 748197.
The current solution does set the sync bit on message accepts every x milisecs defined by qpid.session.max_ack_delay (default 1000 msecs)
I agree that if you happen to publish durable messages on the same session (as the one you are consuming) then there would definitely be a performance issue.
(Note that a message accept is only sent if there are unacked messages)
This is not the ideal solution and it is reusing the timer that is used for sending message acks periodically.
> Set the sync bit periodically to force the broker to send completions
> ---------------------------------------------------------------------
>
> Key: QPID-1692
> URL: https://issues.apache.org/jira/browse/QPID-1692
> Project: Qpid
> Issue Type: Improvement
> Components: Java Client
> Affects Versions: M4
> Reporter: Rajith Attapattu
> Assignee: Rajith Attapattu
>
> It would be good if the JMS client could periodically set the sync bit to force the broker to send completion of commands.
> This would prevent messages being duplicated unnessacerily during a failover and also as means to clear it's replay buffer.
> (Note that we also have -Dqpid.session.command_limit and -Dqpid.session.byte_limit that will send a sessionFlush whenever one of the limits are reached)
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