hbase master not running in hadoop

[veerendra Pipuru]

Hi All,
i am new to hadoop eco system tools.
In  hadoop-1.2.0, i have installed hbase-0.90.4 in  my machine  and zookeeper-3.3.5.
when i see the jobs running by JPS command, i am able to see  the below processes only.

4333 HRegionServer
3479 SecondaryNameNode
3027 NameNode
3787 TaskTracker
4743 Jps
4093 HQuorumPeer
3246 DataNode
3562 JobTracker.


1.export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386 is my hbase-env.sh entry
2.export HBASE_HOME=/home/veerendrapipuru/data/hbase-0.90.4 and export PATH=$PIG_HOME/bin:$HIVE_HOME/bin:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HBASE_HOME/bin:$PATH are my ~/.bashrc entries
3.My hbase-site.xml is
 
<configuration>
<property>
        <!-- This is the location in HDFS that HBase will use to store its files -->
    <name>hbase.rootdir</name>
        <value>hdfs://localhost:54310/hbase</value>
          </property>
            <property>
                <name>hbase.cluster.distributed</name>
                    <value>true</value>
                      </property>
   <property>
       <name>hbase.zookeeper.quorum</name>
    <value>localhost</value>
      </property>
        <property>
            <name>hbase.zookeeper.property.dataDir</name>
                <value>/home/veerendrapipuru/data/zookeeper</value>
                  </property>

</configuration>

[Ashwanth Kumar]

What does the HMaster logs say? 

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[Senthil Kumar]

Can you please post the hmaster logs??

- Senthil Kumar A

[veerendra Pipuru]

13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:java.io.tmpdir=/tmp
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:java.compiler=<NA>
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:os.name=Linux
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:os.arch=i386
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:os.version=3.5.0-40-generic
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:user.name=veerendrapipuru
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:user.home=/home/veerendrapipuru
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Client environment:user.dir=/home/veerendrapipuru/data/hbase-0.90.4/conf
13/10/06 20:06:59 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=localhost:2181 sessionTimeout=180000 watcher=hconnection
13/10/06 20:06:59 INFO zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181
13/10/06 20:06:59 INFO zookeeper.ClientCnxn: Socket connection established to localhost/127.0.0.1:2181, initiating session
13/10/06 20:06:59 INFO zookeeper.ClientCnxn: Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x1418e2c352f0001, negotiated timeout = 180000
13/10/06 20:06:59 INFO client.HConnectionManager$HConnectionImplementation: ZooKeeper available but no active master location found
13/10/06 20:06:59 INFO client.HConnectionManager$HConnectionImplementation: getMaster attempt 0 of 1 failed; no more retrying.
org.apache.hadoop.hbase.MasterNotRunningException
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:357)
    at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:94)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.stopMaster(HMasterCommandLine.java:163)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:104)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
    at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:76)
    at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1078)
13/10/06 20:06:59 ERROR master.HMasterCommandLine: Master not running

[Senthil Kumar]

Can you post your  /etc/hosts??

If you are using ubuntu, please comment 127.0.1.1 and restart


Senthil Kumar A

[Ashwanth Kumar]

Do you have ZK running separately? What does the ZK logs say? 

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[Sb Gowtham]

check after disconnecting your internet it will work 

[veerendra Pipuru]

Hi All,

thanks for the replies.

senthil, 

i have done that before.

 /etc/hosts is pointing local host as  127.0.0.1 only.

Ashwanth,

ZK was running under  the process numbers

4333 HRegionServer and 
4093 HQuorumPeer

problem was solved with the below change :

when i have changed the hbase-site.xml's  hbase.rootdir value from  

 <name>hbase.rootdir</name>
        <value>hdfs://localhost:54310/hbase</value>

to 

 <name>hbase.rootdir</name>

        <value>/home/veerendrapipuru/data/hbase-0.90.4</value>

my HMaster started working.

hbase root directory must be pointing to hbase actual location in the machine instead 

[Ashwanth Kumar]

Actually that is wrong. It should only point to location where it must store HBase tables (typically folders under hbase.root.dir)

Is your HDFS running on 54310 ? Can you share the hdfs-site + core-site configurations? 

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[Senthil Kumar]

http://hortonworks.com/community/forums/topic/zookeeper-available-but-no-active-master-location-found/ 

[Veerendra Pipuru]

Thanks Ashwanth,

Attached are the xml files which you asked for.
yes, and my hadoop is running on 54310 as u asked. please let me know if configurations need to be changed in my config files

[Ashwanth Kumar]

No problems with the configurations so far. 

Instead of hdfs://localhost:54310/hbase can you try using hdfs://127.0.0.1:54310/hbase ? This ideally shouldn't work, but if this does. Then you might need to re-look into /etc/hosts again for any misconfiguration. 

[lakshminarayan]

Why does HBase care about /etc/hosts?

http://blog.devving.com/why-does-hbase-care-about-etchosts/


/Lakshmi