org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /hbase/replication/rs at org.apache.zookeeper.KeeperException.create(KeeperException.java:127) at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1472) at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.getChildren(RecoverableZooKeeper.java:296) at org.apache.hadoop.hbase.zookeeper.ZKUtil.listChildrenNoWatch(ZKUtil.java:573) at org.apache.hadoop.hbase.replication.ReplicationStateZKBase.getListOfReplicators(ReplicationStateZKBase.java:79) at org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.loadHLogsFromQueues(ReplicationLogCleaner.java:88) at org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.getDeletableFiles(ReplicationLogCleaner.java:67) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteFiles(CleanerChore.java:233) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteEntries(CleanerChore.java:157) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.chore(CleanerChore.java:124)

Google Groups | Ron van der Vegt | 2 years ago
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    Hbase unstable, master and regionservers crashes every night at ~ 00:07 UTC

    Google Groups | 2 years ago | Ron van der Vegt
    org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /hbase/replication/rs at org.apache.zookeeper.KeeperException.create(KeeperException.java:127) at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1472) at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.getChildren(RecoverableZooKeeper.java:296) at org.apache.hadoop.hbase.zookeeper.ZKUtil.listChildrenNoWatch(ZKUtil.java:573) at org.apache.hadoop.hbase.replication.ReplicationStateZKBase.getListOfReplicators(ReplicationStateZKBase.java:79) at org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.loadHLogsFromQueues(ReplicationLogCleaner.java:88) at org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.getDeletableFiles(ReplicationLogCleaner.java:67) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteFiles(CleanerChore.java:233) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteEntries(CleanerChore.java:157) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.chore(CleanerChore.java:124)

    Root Cause Analysis

    1. org.apache.zookeeper.KeeperException$SessionExpiredException

      KeeperErrorCode = Session expired for /hbase/replication/rs at org.apache.zookeeper.KeeperException.create(KeeperException.java:127) at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1472) at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.getChildren(RecoverableZooKeeper.java:296) at org.apache.hadoop.hbase.zookeeper.ZKUtil.listChildrenNoWatch(ZKUtil.java:573) at org.apache.hadoop.hbase.replication.ReplicationStateZKBase.getListOfReplicators(ReplicationStateZKBase.java:79) at org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.loadHLogsFromQueues(ReplicationLogCleaner.java:88) at org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.getDeletableFiles(ReplicationLogCleaner.java:67) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteFiles(CleanerChore.java:233) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.checkAndDeleteEntries(CleanerChore.java:157) at org.apache.hadoop.hbase.master.cleaner.CleanerChore.chore(CleanerChore.java:124)

      at org.apache.hadoop.hbase.Chore.run()
    2. HBase
      Chore.run
      1. org.apache.hadoop.hbase.Chore.run(Chore.java:80)
      1 frame
    3. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame