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From: Damien HARDY <dhardy@figarocms.fr>
To: "user@hbase.apache.org" <user@hbase.apache.org>
Date: Mon, 7 May 2012 17:21:16 +0200
Subject: Re: HBase Rowcounter not working..
Thread-Topic: HBase Rowcounter not working..
Thread-Index: Ac0sZQwLjY00a94DQ66HK2N2qRn1+g==
Message-ID: <4FA7E86C.8000102@figarocms.fr>
References: 
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Hello,

If you have the default /etc/zookeeper/zoo.cfg try to rename or remove it=
=2E
It takeover the zookeeper Hbase quorum configuration of hbase-site.xml

Cheers,

--=20
Damien

Le 07/05/2012 17:17, Subir S a =C3=A9crit :
> Hello,
>
> Version:0.90.4-CDH3U3
> HBase managed ZK
>
> I tried to run a simple rowcounter as below:
>
> export HBASE_HOME=3D/usr/lib/hbase;export HADOOP_CLASSPATH=3D`hbase
> classpath`$HBASE_HOME/conf/hbase-site.xml:$HBASE_HOME/conf;hadoop jar
> /usr/lib/hbase/hbase-0.90.4-cdh3u3.jar rowcounter test_table
>
> However it failed with below messages in the taskTracker logs:
>
> 2012-05-07 11:04:58,168 ERROR
> org.apache.hadoop.hbase.mapreduce.TableInputFormat:
> org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase is able to
> connect to ZooKeeper but the connection closes immediately. This could
> be a sign that the server has too many connections (30 is the
> default). Consider inspecting your ZK server logs for that error and
> then make sure you are reusing HBaseConfiguration as often as you can.
> See HTable's javadoc for more information.
> 	at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeper=
Watcher.java:160)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplem=
entation.getZooKeeperWatcher(HConnectionManager.java:1209)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplem=
entation.setupZookeeperTrackers(HConnectionManager.java:511)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplem=
entation.<init>(HConnectionManager.java:502)
> 	at org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HCo=
nnectionManager.java:172)
> 	at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:175)
> 	at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:153)
> 	at org.apache.hadoop.hbase.mapreduce.TableInputFormat.setConf(TableInp=
utFormat.java:91)
> 	at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java=
:62)
> 	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.=
java:117)
> 	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:606)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
> 	at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:396)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInfor=
mation.java:1157)
> 	at org.apache.hadoop.mapred.Child.main(Child.java:264)
> Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException=
:
> KeeperErrorCode =3D ConnectionLoss for /hbase
> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:90=
)
> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:42=
)
> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:815)
> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:843)
> 	at org.apache.hadoop.hbase.zookeeper.ZKUtil.createAndFailSilent(ZKUtil=
=2Ejava:902)
> 	at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeper=
Watcher.java:138)
> 	... 16 more
>
> 2012-05-07 11:05:00,848 INFO
> org.apache.hadoop.mapred.TaskLogsTruncater: Initializing logs'
> truncater with mapRetainSize=3D-1 and reduceRetainSize=3D-1
> 2012-05-07 11:05:00,850 ERROR
> org.apache.hadoop.security.UserGroupInformation:
> PriviledgedActionException as:ssasik0 (auth:SIMPLE)
> cause:java.io.IOException: Cannot create a record reader because of a
> previous error. Please look at the previous logs lines from the task's
> full log for more details.
> 2012-05-07 11:05:00,851 WARN org.apache.hadoop.mapred.Child: Error runn=
ing child
> java.io.IOException: Cannot create a record reader because of a
> previous error. Please look at the previous logs lines from the task's
> full log for more details.
> 	at org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.createRecord=
Reader(TableInputFormatBase.java:98)
> 	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:614)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
> 	at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:396)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInfor=
mation.java:1157)
> 	at org.apache.hadoop.mapred.Child.main(Child.java:264)
> 2012-05-07 11:05:00,853 INFO org.apache.hadoop.mapred.Task: Runnning
> cleanup for the task
>
> ------------------------------
>
> Any help is appreciated...
>
>
> Thank you.


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