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https://issues.apache.org/activemq/browse/AMQ-2721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=59204#action_59204
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Dennis Klinkott commented on AMQ-2721:
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This is the data store of a productive broker with procurement data. For
confidential reasons I can not post it here.
These are the file sizes:
ls -l
total 530240
-rw-r--r-- 1 root root 33556012 May 5 09:33 db-10.log
-rw-r--r-- 1 root root 33555666 May 5 10:42 db-11.log
-rw-r--r-- 1 root root 33556967 May 5 11:40 db-12.log
-rw-r--r-- 1 root root 33556179 May 5 12:45 db-13.log
-rw-r--r-- 1 root root 33554986 May 5 13:55 db-14.log
-rw-r--r-- 1 root root 33555934 May 5 15:35 db-15.log
-rw-r--r-- 1 root root 33554839 May 5 16:05 db-16.log
-rw-r--r-- 1 root root 33030144 May 5 16:08 db-17.log
-rw-r--r-- 1 root root 33556869 May 4 14:00 db-1.log
-rw-r--r-- 1 root root 33556347 May 4 14:53 db-2.log
-rw-r--r-- 1 root root 33554523 May 4 15:20 db-3.log
-rw-r--r-- 1 root root 33555765 May 4 16:07 db-4.log
-rw-r--r-- 1 root root 33554705 May 4 17:05 db-5.log
-rw-r--r-- 1 root root 33555131 May 5 08:58 db-6.log
-rw-r--r-- 1 root root 33555786 May 5 09:01 db-7.log
-rw-r--r-- 1 root root 33555139 May 5 09:03 db-8.log
-rw-r--r-- 1 root root 33555024 May 5 09:06 db-9.log
-rw-r--r-- 1 root root 1564672 May 5 16:08 db.data
-rw-r--r-- 1 root root 837208 May 5 16:08 db.redo
-rw-r--r-- 1 root root 0 May 5 16:08 lock
> 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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