Persistent store journal files (occasionally) not being cleaned up at runtime
for queues with active consumers
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Key: AMQ-1926
URL: https://issues.apache.org/activemq/browse/AMQ-1926
Project: ActiveMQ
Issue Type: Bug
Components: Message Store
Affects Versions: 5.1.0
Environment: AMQPersistenceAdapter with syncOnWrite=false
Reporter: Gary Tully
Assignee: Gary Tully
Over a long period data files fill up in the activemq-data/borker1/data/journal
directory. Scenario is single queue, persistent producer and consumer, consumer
periodically stalls to allow messages to build up in broker.
Problem appears to be related to message ack before async message store gets a
chance to persist messages. Reference to active data file remain which stops
them being cleaned up by the periodic checkpoint.
This limits the available up time of the broker with large volumes of messages
as excessive amounts of disk space are consumed.
Using syncOnWrite=true or setting a
AMQPersistenceAdapter.maxCheckpointMessageAddSize=0 will help avoid the
problem, both of which will effect performance.
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