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https://issues.apache.org/jira/browse/QPID-6575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14576975#comment-14576975
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ASF subversion and git services commented on QPID-6575:
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Commit 1684141 from [~k-wall] in branch 'java/trunk'
[ https://svn.apache.org/r1684141 ]

QPID-6575 : [Java Broker Documentation]  Document 
consumer.suspendNotificationPeriod context var

> Log subscription state change message (SUB-1003) only when a subscription has 
> been suspended for an unusally long period of time
> --------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: QPID-6575
>                 URL: https://issues.apache.org/jira/browse/QPID-6575
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Java Broker
>            Reporter: Keith Wall
>             Fix For: 6.0 [Java]
>
>
> SUB-1003 is logged currently whenever a subscription changes state i.e. as 
> the client session/consumer is able to accept more messages.  With some 
> use-cases (low prefetch) and some messaging stacks (Sping's DMLC) this can be 
> very frequent.   Indeed, with Spring in certain configurations, this will 
> lead to a pair of messages per message.  For this reason,  we turn off 
> SUB-1003 in the log4j configuration.   In v6, we have killed the log4j 
> configuration so SUB-1003 is being logged again.



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