Is your consumer setup to be a durable subscriber by any chance? Before: Your broker received a message for the topic, it has no subscribers for it so throws the message away. Now: Your broker receives a message for the topic, it knows that it has a subscriber who wants to be sent the messages when it reconnects, so keeps the message, using up all your memory.
If your subscriber isn't configured to be durable, then if it isn't connected it won't get the messages, when it reconnects it only gets newly arrived messages. Thomas > -----Original Message----- > From: manua [mailto:agarwal.m...@gmail.com] > Sent: 20 April 2011 20:40 > To: users@activemq.apache.org > Subject: Getting Usage Manager Memory Limit reached message on the > topic > > HI, > > I have a topic on which millions of messages are published and there > was no > subscriber on that, till that time it was working fine. > > I put a subscriber on that, read some messages and subscriber was > killed. > After some time, I got Usage Manager Memory Limit message and the > system > crashes. In the past the same topic has handled much more messages than > today.Only difference there was no subscriber in the past. > > What could be the reason for this. > > Thanks, > Manu > > -- > View this message in context: > http://activemq.2283324.n4.nabble.com/Getting-Usage-Manager-Memory- > Limit-reached-message-on-the-topic-tp3463961p3463961.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. ************************************************************************************** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 **************************************************************************************
