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From Azly <azly.na...@gmail.com>
Subject Reclaiming of unused space (growing data dir)
Date Wed, 05 Apr 2006 17:59:36 GMT

Hi,

I'm using AMQ 4.0 RC2 and runnig 3 producers and 3 consumers threads.  
I'm using derby as persistence datastore :

<persistenceAdapter>
        <jdbcPersistenceAdapter  dataSource="#derby-ds"/>
</persistenceAdapter>

Everything goes well but the derby data dir is growing even if all produced
messages are consumed.  The log directory seems to be reset  every 11M.  But
the data dir (seg0) is still growing.  

I'm wondering if there is an option in activemq to reclain unused space ?

Thanks
Azly

see du -h in data/derbydb/

$ du -h
4.0K   ./tmp
2.1M  ./log
35M   ./seg0
37M     ./derbydb
37M     .

$ du -h
4.0K    ./tmp
4.5M    ./log
70M     ./seg0
75M     .

$ du -h
4.0K    ./tmp
1000K   ./log
118M    ./seg0
119M    .

$ du -h
4.0K    ./tmp
1.2M    ./log
118M    ./seg0
119M    .

$ du -h
4.0K    ./tmp
1.6M    ./log
118M    ./seg0
120M    .

$ du -h
4.0K    ./tmp
2.1M    ./log
118M    ./seg0
120M    .

4.0K    ./tmp
1000K   ./log
138M    ./seg0
139M    .

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