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From Konrad Tendera <ema...@tendera.eu>
Subject Invalid ACL Exception caused by ZooKeeper
Date Sun, 29 Apr 2012 18:44:51 GMT
Hello,

I can't solve the problem which occured today while I was trying to configure starting whole
HBase cluster via non-root user. The exception is thrown during Master initialization and
stack looks like this:

2012-04-29 20:37:06,023 FATAL org.apache.hadoop.hbase.master.HMaster: Received an unexpected
KeeperException, aborting
org.apache.zookeeper.KeeperException$InvalidACLException: KeeperErrorCode = InvalidACL for
/hbase/master
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:121)
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:778)
	at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.createNonSequential(RecoverableZooKeeper.java:459)
	at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.create(RecoverableZooKeeper.java:441)
	at org.apache.hadoop.hbase.zookeeper.ZKUtil.createEphemeralNodeAndWatch(ZKUtil.java:762)
	at org.apache.hadoop.hbase.master.ActiveMasterManager.blockUntilBecomingActiveMaster(ActiveMasterManager.java:134)
	at org.apache.hadoop.hbase.master.HMaster.becomeActiveMaster(HMaster.java:367)
	at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:322)
	at java.lang.Thread.run(Thread.java:662)

After this Master prepares shutdown and some additional info is written in hbase-....out:

Exception in thread "master-nn.evizone.icsadl.agh.edu.pl,60000,1335724812137" java.lang.NullPointerException
	at org.apache.hadoop.hbase.util.Bytes.toShort(Bytes.java:748)
	at org.apache.hadoop.hbase.util.Bytes.toShort(Bytes.java:725)
	at org.apache.hadoop.hbase.ServerName.parseVersionedServerName(ServerName.java:271)
	at org.apache.hadoop.hbase.master.ActiveMasterManager.stop(ActiveMasterManager.java:207)
	at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:343)
	at java.lang.Thread.run(Thread.java:662)

Our environment uses Kerberos node, but everything is configured properly (I suppose). hadoop-policy.xml
contains '*' everywhere as value so I don't think it is the problem.

-- 
Konrad Tendera

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