Hello Oleg, Have a read over http://activemq.apache.org/why-do-kahadb-log-files-remain-after-cleanup.html
and perhaps try the suggested logging configuration. It should help you to figure out why journal files aren't getting deleted. Hope this helps, Torsten Mielke tors...@fusesource.com tmie...@blogspot.com On Sep 9, 2012, at 1:45 PM, Oleg Dulin wrote: > Dear Distinguished Colleagues: > > Here is my use case. > > For the most part my consumers are able to keep up with the workload, but > once a week or so there is a huge burst of messages (millions) that need to > be queued up for processing. We don't want producers blocked, so we want all > the messages get queued up as fast as they come in even if it takes us longer > to actually process them. Here are the policy entries: > > <broker xmlns="http://activemq.apache.org/schema/core" > brokerName="localhost" dataDirectory="./activemq-data" > destroyApplicationContextOnStop="true" persistent="true" > useJmx="true"> > …. > <policyEntries> > <policyEntry topic=">" > producerFlowControl="false" > memoryLimit="64mb"> > <pendingSubscriberPolicy> > <fileCursor /> > </pendingSubscriberPolicy> > </policyEntry> > <policyEntry queue=">" > producerFlowControl="false" > memoryLimit="64mb"> > <pendingQueuePolicy> > <fileQueueCursor /> > </pendingQueuePolicy> > </policyEntry> > </policyEntries> > …. > <persistenceAdapter> > <kahaDB > directory="${activemq.base}/activemq-data/kahadb" /> > </persistenceAdapter> > > > What happens is that after all is done processing and queue sizes are down to > 0 (I checked in jconsole), the activemq-data directory is still consuming a > couple of dozen gigabytes of disk space. Isn't ActiveMQ supposed to clean up > after itself ? I know it does because at some point the disk utilization > grows to almost a 100 gig, but then it shrinks back down to 30 or so -- and > stays there. Why is that ? > > We are using AMQ 5.5.1, embedded broker. > > Any input is greatly appreciated. > > Regards, > Oleg > >