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From sandeepatmca <sandipat...@gmail.com>
Subject ActiveMQ Failed to restart
Date Fri, 30 Nov 2018 18:55:07 GMT
Hi 

We have Active MQ and Zookeeper ensemble on 3 nodes. We observed that
ActiveMQ goes down for some reason ,which didn't reflected in the log,since
log is in debug mode & at it automatically  attempts to start itself after
some time but fails to do due to below error.Can any one suggest why its
happening so . 

   1767 2018-11-27 14:53:46,423 | DEBUG |
[/activemq/leveldb-stores/00000000040] [ZooKeeperTreeTracker@3cda58e0]
[Thread[main,5,main]] start tracking leaf node zkTxId=5        1539607591 |
org.linkedin.zookeeper.tracker.ZooKeeperTreeTracker | main
2018-11-27 14:53:46,424 | DEBUG | [/activemq/leveldb-stores]
[ZooKeeperTreeTracker@3cda58e0] [Thread[main,5,main]] start tracking node
zkTxId=51539607590 | org.       
linkedin.zookeeper.tracker.ZooKeeperTreeTracker | main
   1769 2018-11-27 14:53:46,424 | ERROR | Failed to start Apache ActiveMQ
(localhost, null) | org.apache.activemq.broker.BrokerService | main
   1770 java.lang.NullPointerException
   1771         at
org.linkedin.zookeeper.tracker.ZooKeeperTreeTracker.raiseEvents(ZooKeeperTreeTracker.java:402)[org.linkedin.zookeeper-impl-1.4.0.jar:]
   1772         at
org.linkedin.zookeeper.tracker.ZooKeeperTreeTracker.track(ZooKeeperTreeTracker.java:240)[org.linkedin.zookeeper-impl-1.4.0.jar:]




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