Memory leak in ConnectionStateTracker (cannot remove connections, sessions or
consumers)
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Key: AMQ-2178
URL: https://issues.apache.org/activemq/browse/AMQ-2178
Project: ActiveMQ
Issue Type: Bug
Affects Versions: 5.2.0
Environment: Debian Linux
Processor with 2 cores
Java 1.6.0_07-b06
Bitronix Transaction Manager 1.3.2
Reporter: Sebastian Gutsfeld
After inspecting the heap dump of our application we saw that the
ConcurrentHashMap connectionStates in
org.apache.activemq.state.ConnectionStateTracker in
org.apache.activemq.transport.failover.FailoverTransport consumes very much
heap space.
The ConnectionStateTracker is an implementation of a CommandVisitor, but the
function to remove connections from the connectionStates ConcurrentHashMap in
processRemoveConnection() is never called, as it does not correspond to the
CommandVisitor interface. The same applies to the processRemoveConsumer() and
processRemoveSession() functions.
I attached a patch to fix those bugs and remove the memory leak in
ConnectionStateTracker.
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