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From "Dwain Theobald (JIRA)" <>
Subject [jira] [Commented] (AMQ-3818) Delayed persistent messages are lost if the broker is hard killed during the delay.
Date Tue, 24 Apr 2012 23:18:05 GMT


Dwain Theobald commented on AMQ-3818:

That looks like the same issue.  Thanks.
> Delayed persistent messages are lost if the broker is hard killed during the delay.
> -----------------------------------------------------------------------------------
>                 Key: AMQ-3818
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.5.1
>         Environment: Windows 7 and Linux.
>            Reporter: Dwain Theobald
>             Fix For: 5.6.0
> Persistent messages that are sent with a delay are lost by the ActiveMQ 5.5.1 broker
if the broker is hard killed before the scheduler finishes its work at the end of the delay.
 This isn't a problem if the broker is gracefully shutdown or if the broker continues to run
beyond the delay, even if a consumer isn't waiting to immediately consume the message.  If
the broker goes down hard during the delay, even if the broker isn't busy, then it will lose
100% of the persistent messages that are waiting for their delay to come to an end.
> A simple test case that reproduces this issue can be made by having a producer send one
thousand messages that each have a one minute delay.  As soon as the last message has been
sent by the producer wait an addtional second or two and then hard kill the broker.  The hard
kill should happen before the one minute delay has passed for the first message.  Immediately
restart the broker and then start a consumer that is looking for those one thousand messages.
 Even after a couple of minutes, the messages will not have made it to the consumer.

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