What was in the primary broker's log at the same time? Were there any indications of problems with NFS or the network? On Apr 27, 2015 1:51 AM, "khandelwalanuj" <khandelwal.anu...@gmail.com> wrote:
> Hi, > > Using ActiveMQ-5.11.1. > Topology : [shared-storage-master-slave ] with kahadb > Kahadb store location is on NFS. > > Yesterday we faced a strange issue where suddenly failover broker opened > it's transport connector and started accepting connections. Both primary > and > failover were serving the clients. Please note that there were not restart. > > Details: > From the logs: Failvoer logs says that it checks each 10 seconds to acquire > the lock but for that time, it > didn't check for 3 minutes and then suddenly acquires the lock over kahadb. > And on the other side primary broker was continuously serving the clients. > *This is very strange but how both primary and failvoer can serve the > clients simultaneously ? Is there some bug in kahadb locking procedure? > * > > Failover logs: > [20150425 *08:02:57*.356 EDT (main) > org.apache.activemq.store.SharedFileLocker#doStart 58 INFO] - Database > /local/pod/activemq/kahadb/lock is locked... wait > ing 10 seconds for the database to be unlocked. Reason: > java.io.IOException: > File '/local/pod/activemq/kahadb/lock' could not be locked. > [20150425* 08:03:07*.359 EDT (main) > org.apache.activemq.store.SharedFileLocker#doStart 58 INFO] - Database > /local/pod/activemq/kahadb/lock is locked... wait > ing 10 seconds for the database to be unlocked. Reason: > java.io.IOException: > File '/local/pod/activemq/kahadb/lock' could not be locked. > [20150425 *08:03:17*.365 EDT (main) > org.apache.activemq.store.SharedFileLocker#doStart 58 INFO] - Database > /local/pod/activemq/kahadb/lock is locked... wait > ing 10 seconds for the database to be unlocked. Reason: > java.io.IOException: > File '/local/pod/activemq/kahadb/lock' could not be locked. > [20150425 *08:06:21*.963 EDT (main) > org.apache.activemq.store.kahadb.MessageDatabase$Metadata#read 168 INFO] - > KahaDB is version 5 > [20150425 *08:06:21*.983 EDT (main) > org.apache.activemq.store.kahadb.MessageDatabase#recover 603 INFO] - > Recovering from the journal ... > [20150425 08:06:22.052 EDT (main) > org.apache.activemq.store.kahadb.MessageDatabase#recover 616 INFO] - > Recovery replayed 5670 operations from the journal > in 0.085 seconds. > [20150425 08:06:25.426 EDT (main) > org.apache.activemq.store.kahadb.MessageDatabase$Metadata#read 168 INFO] - > KahaDB is version 5 > [20150425 08:06:25.457 EDT (main) > org.apache.activemq.store.kahadb.MessageDatabase#recover 603 INFO] - > Recovering from the journal ... > [20150425 08:06:25.458 EDT (main) > org.apache.activemq.store.kahadb.MessageDatabase#recover 616 INFO] - > Recovery replayed 33 operations from the journal in > 0.009 seconds. > > > Thanks, > Anuj > > > > > > > > > > > -- > View this message in context: > http://activemq.2283324.n4.nabble.com/ActiveMQ-slave-broker-opening-it-s-connector-tp4695677.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. >
