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From Manu S <manupk...@gmail.com>
Subject Pseudo Distributed: ERROR org.apache.hadoop.hbase.HServerAddress: Could not resolve the DNS name of localhost.localdomain
Date Thu, 07 Jun 2012 09:18:43 GMT
Hi All,

In pseudo distributed node HBaseMaster is stopping automatically when we
starts HbaseRegion.

I have changed all the configuration files of Hadoop,Hbase & Zookeeper to
set the exact hostname of the machine. Also commented the localhost entry
from /etc/hosts & cleared the cache as well. There is no entry of
localhost.localdomain entry in these configurations, but this it is
resolving to localhost.localdomain.

Please find the error:
2012-06-07 12:13:11,995 INFO
org.apache.hadoop.hbase.master.MasterFileSystem: No logs to split
*2012-06-07 12:13:12,103 ERROR org.apache.hadoop.hbase.HServerAddress:
Could not resolve the DNS name of localhost.localdomain
2012-06-07 12:13:12,104 FATAL org.apache.hadoop.hbase.master.HMaster:
Unhandled exception. Starting shutdown.*
*java.lang.IllegalArgumentException: hostname can't be null*
        at java.net.InetSocketAddress.<init>(InetSocketAddress.java:121)
        at
org.apache.hadoop.hbase.HServerAddress.getResolvedAddress(HServerAddress.java:108)
        at
org.apache.hadoop.hbase.HServerAddress.<init>(HServerAddress.java:64)
        at
org.apache.hadoop.hbase.zookeeper.RootRegionTracker.dataToHServerAddress(RootRegionTracker.java:82)
        at
org.apache.hadoop.hbase.zookeeper.RootRegionTracker.waitRootRegionLocation(RootRegionTracker.java:73)
        at
org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRoot(CatalogTracker.java:222)
        at
org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRootServerConnection(CatalogTracker.java:240)
        at
org.apache.hadoop.hbase.catalog.CatalogTracker.verifyRootRegionLocation(CatalogTracker.java:487)
        at
org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:455)
        at
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:406)
        at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:293)
2012-06-07 12:13:12,106 INFO org.apache.hadoop.hbase.master.HMaster:
Aborting
2012-06-07 12:13:12,106 DEBUG org.apache.hadoop.hbase.master.HMaster:
Stopping service threads

Thanks,
Manu S

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