Hi, with activemq 5.15.2 we saw in the dump analyzer a lot of hashmap.
<http://activemq.2283324.n4.nabble.com/file/t379794/Selection_093.png> as you can seee 121,680 entries. Our heap size is 2GB xmx and xms Our jvm is IBM J9 What can I provide as information to get help? Is this a know issue? Why these hashmap are comulated by org.apache.activemq.store.jdbc.JdbcMemoryTransactionStore. Thanks Michele -- Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html