[jira] [Created] (HBASE-5781) Zookeeper session got closed while trying to assign the region to RS using hbck -fix

2012-04-12 Thread Kristam Subba Swathi (Created) (JIRA) 
Zookeeper session got closed while trying to assign the region to RS using hbck 
-fix


 Key: HBASE-5781
 URL: https://issues.apache.org/jira/browse/HBASE-5781
 Project: HBase
  Issue Type: Bug
  Components: hbck
Reporter: Kristam Subba Swathi


After running the hbck in the cluster ,it is found that one region is not 
assigned
So the hbck -fix is used to fix this 
But the assignment didnt happen since the zookeeper session is closed
Please find the attached trace for more details
-
Trying to fix unassigned region...
12/04/03 11:02:57 INFO util.HBaseFsckRepair: Region still in transition, 
waiting for it to become assigned: {NAME => 
'ufdr,002300,179123498.00871fbd7583512e12c4eb38e900be8d.', STARTKEY => 
'002300', ENDKEY => '002311', ENCODED => 00871fbd7583512e12c4eb38e900be8d,}
12/04/03 11:02:58 INFO client.HConnectionManager$HConnectionImplementation: 
Closed zookeeper sessionid=0x236738a263a
12/04/03 11:02:58 INFO zookeeper.ZooKeeper: Session: 0x236738a263a closed
ERROR: Region { meta => 
ufdr,010444,179123857.01594219211d0035b9586f98954462e1., hdfs => 
hdfs://10.18.40.25:9000/hbase/ufdr/01594219211d0035b9586f98954462e1, deployed 
=> } not deployed on any region server.
Trying to fix unassigned region...
12/04/03 11:02:58 INFO zookeeper.ClientCnxn: EventThread shut down
12/04/03 11:02:58 WARN zookeeper.ZKUtil: hconnection-0x236738a263a Unable 
to set watcher on znode (/hbase)
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /hbase
at org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1021)
at 
org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:150)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:263)
at 
org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.checkIfBaseNodeAvailable(ZooKeeperNodeTracker.java:208)
at 
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.checkIfBaseNodeAvailable(HConnectionManager.java:695)
at 
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:626)
at org.apache.hadoop.hbase.client.HBaseAdmin.getMaster(HBaseAdmin.java:211)
at org.apache.hadoop.hbase.client.HBaseAdmin.assign(HBaseAdmin.java:1325)
at 
org.apache.hadoop.hbase.util.HBaseFsckRepair.forceOfflineInZK(HBaseFsckRepair.java:109)
at 
org.apache.hadoop.hbase.util.HBaseFsckRepair.fixUnassigned(HBaseFsckRepair.java:92)
at 
org.apache.hadoop.hbase.util.HBaseFsck.tryAssignmentRepair(HBaseFsck.java:1235)
at 
org.apache.hadoop.hbase.util.HBaseFsck.checkRegionConsistency(HBaseFsck.java:1351)
at 
org.apache.hadoop.hbase.util.HBaseFsck.checkAndFixConsistency(HBaseFsck.java:1114)
at 
org.apache.hadoop.hbase.util.HBaseFsck.onlineConsistencyRepair(HBaseFsck.java:356)
at org.apache.hadoop.hbase.util.HBaseFsck.onlineHbck(HBaseFsck.java:375)
at org.apache.hadoop.hbase.util.HBaseFsck.main(HBaseFsck.java:2894)
12/04/03 11:02:58 ERROR zookeeper.ZooKeeperWatcher: 
hconnection-0x236738a263a Received unexpected KeeperException, re-throwing 
exception
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /hbase
at org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1021)
at 
org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:150)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:263)
at 
org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.checkIfBaseNodeAvailable(ZooKeeperNodeTracker.java:208)
at 
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.checkIfBaseNodeAvailable(HConnectionManager.java:695)
at 
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:626)
at org.apache.hadoop.hbase.client.HBaseAdmin.getMaster(HBaseAdmin.java:211)
at org.apache.hadoop.hbase.client.HBaseAdmin.assign(HBaseAdmin.java:1325)
at 
org.apache.hadoop.hbase.util.HBaseFsckRepair.forceOfflineInZK(HBaseFsckRepair.java:109)
at 
org.apache.hadoop.hbase.util.HBaseFsckRepair.fixUnassigned(HBaseFsckRepair.java:92)
at 
org.apache.hadoop.hbase.util.HBaseFsck.tryAssignmentRepair(HBaseFsck.java:1235)
at 
org.apache.hadoop.hbase.util.HBaseFsck.checkRegionConsistency(HBaseFsck.java:1351)
at 
org.apache.hadoop.hbase.util.HBaseFsck.checkAndFixConsistency(HBaseFsck.java:1114)
at 
org.apache.hadoop.hbase.util.HBaseFsck.onlineConsistencyRepair(HBaseFsck.java:356)
at org.apache.hadoop.hbase.util.HBaseFsck

[jira] [Created] (HBASE-5680) Hbase94 and Hbase 92.2 is not compatible with the Hadoop 23.1

2012-03-30 Thread Kristam Subba Swathi (Created) (JIRA) 
Hbase94 and Hbase 92.2 is not compatible with the Hadoop 23.1 
--

 Key: HBASE-5680
 URL: https://issues.apache.org/jira/browse/HBASE-5680
 Project: HBase
  Issue Type: Bug
  Components: master
Reporter: Kristam Subba Swathi


Hmaster is not able to start because of the following error
Please find the following error 

2012-03-30 11:12:19,487 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled 
exception. Starting shutdown.
java.lang.NoClassDefFoundError: 
org/apache/hadoop/hdfs/protocol/FSConstants$SafeModeAction
at org.apache.hadoop.hbase.util.FSUtils.waitOnSafeMode(FSUtils.java:524)
at 
org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:324)
at 
org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:127)
at 
org.apache.hadoop.hbase.master.MasterFileSystem.(MasterFileSystem.java:112)
at 
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:496)
at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:363)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: 
org.apache.hadoop.hdfs.protocol.FSConstants$SafeModeAction
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 7 more
There is a change in the FSConstants


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[jira] [Created] (HBASE-5635) If getTaskList() returns null splitlogWorker is down. It wont serve any requests.

2012-03-26 Thread Kristam Subba Swathi (Created) (JIRA) 
If getTaskList() returns null splitlogWorker is down. It wont serve any 
requests. 
--

 Key: HBASE-5635
 URL: https://issues.apache.org/jira/browse/HBASE-5635
 Project: HBase
  Issue Type: Bug
  Components: wal
Affects Versions: 0.92.1
Reporter: Kristam Subba Swathi


During the hlog split operation if all the zookeepers are down ,then the paths 
will be returned as null and the splitworker thread wil be exited
Now this regionserver wil not be able to acquire any other tasks since the 
splitworker thread is exited
Please find the attached code for more details
--
private List getTaskList() {
for (int i = 0; i < zkretries; i++) {
  try {
return (ZKUtil.listChildrenAndWatchForNewChildren(this.watcher,
this.watcher.splitLogZNode));
  } catch (KeeperException e) {
LOG.warn("Could not get children of znode " +
this.watcher.splitLogZNode, e);
try {
  Thread.sleep(1000);
} catch (InterruptedException e1) {
  LOG.warn("Interrupted while trying to get task list ...", e1);
  Thread.currentThread().interrupt();
  return null;
}
  }
}

in the org.apache.hadoop.hbase.regionserver.SplitLogWorker 


 



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