Hi, We use ActiveMQ 5.5.1 in our web-based product that is deployed into Tomcat. A couple of our clients get the following AMQ exceptions on Windows servers from time to time:
2012-03-28 00:08:25,508 INFO Stopping the broker due to IO exception [org.apache.activemq.store.kahadb.KahaDBStore] - Stopped KahaDB 2012-03-28 00:08:25,565 INFO Stopping the broker due to IO exception [org.apache.activemq.broker.BrokerService] - ActiveMQ JMS Message Broker (amqserver, ID:OHCINCEAS08-56068-1332761690135-0:1) stopped 2012-03-28 00:08:25,582 ERROR Stopping the broker due to IO exception [org.apache.activemq.store.kahadb.MessageDatabase] - KahaDB failed to store to Journal java.io.IOException: The process cannot access the file because another process has locked a portion of the file at java.io.RandomAccessFile.writeBytes(Native Method) at java.io.RandomAccessFile.write(Unknown Source) at org.apache.kahadb.journal.DataFileAppender.processQueue(DataFileAppender.java:374) at org.apache.kahadb.journal.DataFileAppender$2.run(DataFileAppender.java:203) Does anyone know what could cause this to happen? We did some research and somebody mentioned Virus scan or backup process could be the potential causes. But I am not sure why those processes could lock the KahaDB files. Thanks. Sean -- View this message in context: http://activemq.2283324.n4.nabble.com/AMQ-5-5-KahaDB-failed-to-store-to-Journal-java-io-IOException-The-process-cannot-access-the-file-bece-tp4529699p4529699.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
