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From "Hadrian Zbarcea (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-4952) When duplicate message occur from network producer, messages blocked by cursor audit are blocked till restart
Date Wed, 02 Apr 2014 22:09:21 GMT

     [ https://issues.apache.org/jira/browse/AMQ-4952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hadrian Zbarcea updated AMQ-4952:
---------------------------------

    Fix Version/s: 5.9.1

> When duplicate message occur from network producer, messages blocked by cursor audit
are blocked till restart
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-4952
>                 URL: https://issues.apache.org/jira/browse/AMQ-4952
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Message Store
>    Affects Versions: 5.9.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>              Labels: duplicate, network, stuck
>             Fix For: 5.9.1, 5.10.0
>
>
> If auditNetworkProducers is off (as it is by default) a reforward (because of a missing
send reply) will be a duplicate.
> If the initial messages is still in the store the duplicate will be trapped by the  
message cursor but the message remains in the store. So on a restart the cursor is fresh (unless
in the case of jdbc when there are still messages in the store) and the message gets redispatched.
In the jdbc case - if the store/destination is empty there will be a resend b/c there is no
sequence state to replay.
> Duplicates detected by the cursor need to deal with the duplicate message - moving to
the DLQ makes the most sense - the cause can indicate the reason  to allow separation from
poison due to redelivery failure.
> Client duplicate detection currently uses a poison ack, so this makes the behaviour consistent.



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