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From artnaseef <>
Subject Re: AWS disk hosting ActiveMQ is full, UI purge/delete doesn't work
Date Tue, 24 Nov 2015 18:05:31 GMT
Note that the db-#.log files are not general-purpose error logging files,
they are the KahaDB data files.

If KahaDB is holding onto a large number of files, there's a good chance
there are old messages around.  The first thing to check is that ActiveMQ is
not being used as a message store.  Old messages can and do lead to large
amount of disk space being held.

Note that there is no defragmentation of the files, so a single message can
hold an entire data file, and due to the need to maintain acks in order to
avoid duplicate message delivery after a restart, a single message can lead
to holding a long chain of data files.

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