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Posted to dev@qpid.apache.org by "Gordon Sim (Commented) (JIRA)" <ji...@apache.org> on 2012/02/11 17:15:59 UTC
[jira] [Commented] (QPID-3828) When sending large messages loss of
connection is not detected even with heartbeats enabled
[ https://issues.apache.org/jira/browse/QPID-3828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13206160#comment-13206160 ]
Gordon Sim commented on QPID-3828:
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When the idle timeout fires., the callback request works as expected and we call AsyncIO::queueWriteClose(). However at that point if the socket is not writable (i.e. buffers are full), then we never get the AsyncIO::writable() callback again (at least until the netwrok connection is re-established) and that is where the actual close is handled.
> When sending large messages loss of connection is not detected even with heartbeats enabled
> -------------------------------------------------------------------------------------------
>
> Key: QPID-3828
> URL: https://issues.apache.org/jira/browse/QPID-3828
> Project: Qpid
> Issue Type: Bug
> Components: C++ Client
> Affects Versions: 0.14, 0.15
> Reporter: Gordon Sim
>
> E.g run qpid-send --broker <remote-broker> --connection-options {heartbeat:8} --messages 0 --content-size 1600 --report-every 1000 --address amq.topic
> then after some time pull the network cable (you have to do this, a kill -STOP on the broker is *not* sufficient). The test will continue sending messages then eventually hang (when buffers are full). If you reconnect the cable, the connection will fail but if you don't, it will not.
> If you reduce the size e.g. to 100 bytes , the connection fails as expected after two heartbeat intervals (16 secs in this case).
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