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From "John I. Noecker Jr." <jnoec...@proteuseng.com>
Subject HBase Error
Date Mon, 06 Jul 2009 22:41:25 GMT
Hello all,

 

I am using HBase within a Map/Reduce job, and when I run the job, it
exits with the following error:

 

09/07/06 18:34:42 INFO mapred.JobClient: Task Id :
attempt_200907061758_0004_m_000000_0, Status : FAILED

org.apache.hadoop.hbase.MasterNotRunningException: localhost:60000

 at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster
(HConnectionManager.java:239)

 at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateReg
ion(HConnectionManager.java:439)

 at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:115)

 at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:98)

 at com.proteus.athena.hadoop.xml.XmlMapper.map(XmlMapper.java:74)

 at com.proteus.athena.hadoop.xml.XmlMapper.map(XmlMapper.java:1)

 at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)

 at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342)

 at org.apache.hadoop.mapred.Child.main(Child.java:158)

 

I am running Hadoop 0.19.1 with HBase 0.19.3.  I have a cluster of 5
nodes, with one node (named 'elroy' == 10.1.0.200) serving as the Hadoop
namenode and  jobtracker and the HBase Master.  

 

My hbase-site.xml:

<configuration>

  <property>

    <name>hbase.rootdir</name>

    <value>hdfs://elroy/hbase</value>

  </property>

 

  <property>

    <name>hbase.master</name>

    <value>elroy:6000</value>

  </property>

</configuration>

 

My regionservers:

10.1.0.200

10.1.0.201

10.1.0.202

10.1.0.203

10.1.0.204

 

It seems that when the Map/Reduce job attempts to contact the HBase
database, it tries to do so on localhost:6000 instead of elroy:6000...
Since I have hbase.master set in hbase-site.xml, I am not sure why it is
doing this.

 

Any suggestions?

 

Thanks,

John Noecker Jr.


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