[jira] Commented: (AMQ-2721) Broker hangs reading KahaDB data store

["Dennis Klinkott (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/activemq/browse/AMQ-2721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=59202#action_59202 ] 

Dennis Klinkott commented on AMQ-2721:
--------------------------------------

I should add that the broker was shut down successfully (no exceptions/problems in the log) before started again.

If the broker was run for a shorter time like an hour or less, this issue does not take place.

> Broker hangs reading KahaDB data store
> --------------------------------------
>
>                 Key: AMQ-2721
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2721
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.3.1
>         Environment: Red hat enterprise
>            Reporter: Dennis Klinkott
>         Attachments: brokerjstack.log
>
>
> Broker hangs on loading the data store. Happens after using the broker for 10 hours in productive environment.
> In broker log the last entries we see is a bunch of loading kahadb debug entries.
> 2010-05-05 16:06:19,462 | DEBUG | loading | org.apache.kahadb.index.BTreeIndex | main
> But the broker doesn't stall completely. It is doing something with high cpu load. But it doesn't get the data store loaded. Even after a few hours it doesn't get finished (usually only takes a few seconds).
> I took a few jstack-dumps where we can see the broker being busy putting something into a hashmap.
> We have 2 brokers connected as network of brokers.

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