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  1. HBase
  2. HBASE-6625

If we have hundreds of thousands of regions getChildren will encouter zk exception

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      2012-05-13 19:37:37,528 DEBUG org.apache.hadoop.hbase.master.AssignmentManager$ExistsUnassignedAsyncCallback: rs=CreateNewTableWith100000Regions,\x05\xB3\x06
      g\xE8r\xBB]\x09\xCF,1336724029944.079cb2f8a375e66fa089291b82f2a03f. state=OFFLINE, ts=1336909053108
      2012-05-13 19:37:37,528 DEBUG org.apache.hadoop.hbase.master.AssignmentManager$CreateUnassignedAsyncCallback: rs=CreateNewTableWith100000Regions,\x08s\x84\x8
      8$7\xB1\xC4\xFCg,1336724030660.76c07780231942231013c7feb5e5eb14. state=OFFLINE, ts=1336909055089, server=dw76.kgb.sqa.cm4,60020,1336908983944
      2012-05-13 19:37:37,528 DEBUG org.apache.hadoop.hbase.master.AssignmentManager$CreateUnassignedAsyncCallback: rs=CreateNewTableWith100000Regions,\x08s\x89\xC
      B\x9B\xF0\xE4\xCA\x97\xB0,1336724030660.fa38b9d8367387a64a327087cb43b3e0. state=OFFLINE, ts=1336909055089, server=dw76.kgb.sqa.cm4,60020,1336908983944
      2012-05-13 19:37:37,528 INFO org.apache.hadoop.hbase.master.AssignmentManager: dw76.kgb.sqa.cm4,60020,1336908983944 unassigned znodes=58464 of total=120002
      2012-05-13 19:37:37,758 WARN org.apache.zookeeper.ClientCnxn: Session 0x13745fc2c8d0001 for server dw51.kgb.sqa.cm4/10.232.98.51:2180, unexpected error, clos
      ing socket connection and attempting reconnect
      java.io.IOException: Packet len4320092 is out of range!
      at org.apache.zookeeper.ClientCnxn$SendThread.readLength(ClientCnxn.java:710)
      at org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:869)
      at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1130)
      2012-05-13 19:37:37,860 WARN org.apache.hadoop.hbase.zookeeper.ZKUtil: master:60000-0x13745fc2c8d0001 Unable to list children of znode /hbase-new4/unassigned

      org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase-new4/unassigned
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
      at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1243)
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.listChildrenAndWatchForNewChildren(ZKUtil.java:302)
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.watchAndGetNewChildren(ZKUtil.java:413)
      at org.apache.hadoop.hbase.master.AssignmentManager.nodeChildrenChanged(AssignmentManager.java:759)
      at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:314)
      at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:530)
      at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
      2012-05-13 19:37:37,861 ERROR org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher: master:60000-0x13745fc2c8d0001 Received unexpected KeeperException, re-thro
      wing exception
      org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase-new4/unassigned
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
      at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1243)
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.listChildrenAndWatchForNewChildren(ZKUtil.java:302)
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.watchAndGetNewChildren(ZKUtil.java:413)
      at org.apache.hadoop.hbase.master.AssignmentManager.nodeChildrenChanged(AssignmentManager.java:759)
      at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:314)
      at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:530)
      at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
      2012-05-13 19:37:37,861 FATAL org.apache.hadoop.hbase.master.HMaster: Unexpected ZK exception reading unassigned children
      org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase-new4/unassigned
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
      at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
      at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1243)
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.listChildrenAndWatchForNewChildren(ZKUtil.java:302)
      at org.apache.hadoop.hbase.zookeeper.ZKUtil.watchAndGetNewChildren(ZKUtil.java:413)
      at org.apache.hadoop.hbase.master.AssignmentManager.nodeChildrenChanged(AssignmentManager.java:759)
      at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:314)
      at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:530)
      at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
      2012-05-13 19:37:37,861 INFO org.apache.hadoop.hbase.master.HMaster: Aborting

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              • Assignee:
                zhou wen jian Zhou wenjian
                Reporter:
                zhou wen jian Zhou wenjian
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                  Updated:
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