regarding hbase running on hadoop in distributed mode

Question

Hadoop version=2.4.1
hbase version=0.98.6

i have hadoop up and running prefectly fine on below conf:
107.108.86.119-hadoop namenode,SecondaryNameNode
107.109.155.100-datanode1
107.109.155.102-datanode2

now i install hbase as below conf:-
107.108.86.114:-hmaster,HQuorumPeer
107.109.155.100-regionserver1
107.109.155.102-regionserver2

when i do jps following process are running:
107.109.155.102:-hregionserver,datanode
107.109.155.100:-hregionserver,datanode
107.108.86.119:-NameNode,secondaryNameNode
107.108.86.114:-hmaster

but on doing status on hbase shell is showing "0 servers, 0 dead, NaN average load"
on entering cmd on hbase shell showing ERROR: java.io.IOException: Table Namespace Manager not ready yet, try again later

logs on regionserver showing: regionserver.HRegionServer: reportForDuty to master=localhost,60000,1415007213689 with port=60020, startcode=1415007215055 regionserver.HRegionServer: error telling master we are up

my hbase-site.xml-

<property>
    <name>hbase.master</name>
    <value>107.108.86.114:60000</value>
</property>
<property>
    <name>hbase.rootdir</name>
    <value>hdfs://push-mcd2:54310/hbase</value>
</property>
<property>
    <name>hbase.cluster.distributed</name>
    <value>true</value>
</property> 
<property>
    <name>hbase.zookeeper.property.clientPort</name>
    <value>2181</value>
 </property>
<property>
      <name>hbase.zookeeper.quorum</name>
      <value>107.108.86.114</value>
</property>

while /etc/hosts of hmaster is:

127.0.0.1   localhost arpita-ubuntu 
127.0.1.1       arpita-ubuntu
107.109.155.100 push-ws1
107.109.155.102 push-ws2 
107.108.86.114  push-mcd1 
107.108.86.119  push-mcd2

WHILE slaves file are also almost similiar to above one.

conf/hbase-env.sh

export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.22 export HBASE_CLASSPATH=/home/hadoop/hadoop-0.20.2/conf export HBASE_MANAGES_ZK=true

so what change i make so hbase will run on above cluster

mbaxi mbaxi · Accepted Answer · 2014-11-03T14:07:40

Why does your regionserver log mentions that it is looking for HBase Master on localhost? Form information above you have setup Master on a node different for either regionservers, please check your config is correct on each node.

logs on regionserver showing: regionserver.HRegionServer: reportForDuty to master=localhost,60000,1415007213689 with port=60020, startcode=1415007215055 regionserver.HRegionServer: error telling master we are up

Also in /etc/hosts on each node please update first two lines from

127.0.0.1   localhost arpita-ubuntu 
127.0.1.1       arpita-ubuntu

to

127.0.0.1   localhost
<Actual_IP_Address_for_Host>   arpita-ubuntu

This is necessary if you don't have automatic dns name resolution in place.

Also please use IP instead of localhost in all config settings.

If you still face issues, check if the respective ports are open or not.

Hope this helps you.

regarding hbase running on hadoop in distributed mode

1 Answers