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Posted to dev@qpid.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2016/08/17 17:41:21 UTC
[jira] [Commented] (DISPATCH-477) Drop pre-settled under congestion
[ https://issues.apache.org/jira/browse/DISPATCH-477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15425003#comment-15425003 ]
ASF subversion and git services commented on DISPATCH-477:
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Commit c9d14137d44f6bec809ea818f4e9f4082723c534 in qpid-dispatch's branch refs/heads/master from [~tross@redhat.com]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-dispatch.git;h=c9d1413 ]
DISPATCH-477, DISPATCH-336 - Discard pre-settled deliveries under congestion to prevent high latency and unbounded memory consumption. Hat-tip to Gordon Sim for coming up with the solution to this issue.
> Drop pre-settled under congestion
> ---------------------------------
>
> Key: DISPATCH-477
> URL: https://issues.apache.org/jira/browse/DISPATCH-477
> Project: Qpid Dispatch
> Issue Type: New Feature
> Components: Router Node
> Reporter: Ted Ross
> Assignee: Ted Ross
> Fix For: 0.7.0
>
>
> When a pre-settled (fire-and-forget) delivery is routed to a destination, and that destination's undelivered FIFO is at or above its capacity (default 250), pre-settled deliveries must be dropped to reduce congestion and prevent unbounded memory consumption.
> Once congestion is detected on a pre-settled delivery, all earlier pre-settled deliveries on the same outgoing link shall be dropped and only the most recent pre-settled delivery shall remain. Note that an outgoing link may contain a mixture of pre-settled and unsettled deliveries.
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