Hi All,
Thank you for your reply.
I tried all these options but still I am facing this issue.
@Mayank: I tried the same, but still getting error.
export
HADOOP_CLASSPATH="/usr/lib/hadoop/:/usr/lib/hadoop/lib/:/usr/lib/hadoop/conf/"
export
HBASE_CLASSPATH="/usr/lib/hbase/:/usr/lib/hbase/lib/:/usr/lib/hbase/conf/:/usr/lib/zookeeper/:/usr/lib/zookeeper/conf/:/usr/lib/zookeeper/lib/"
export CLASSPATH="${HADOOP_CLASSPATH}:${HBASE_CLASSPATH}"
@Marcos & Tariq:
We are using Hbase version 0.90.4
Job creating single HBaseConfiguration object only
@Kevin:
No luck, same error
Thanks,
Manu S
On Thu, Jun 7, 2012 at 3:50 AM, Mayank Bansal <may...@apache.org> wrote:
>
> zookeeper conf is not on the class path for the mapreduce job. Add conf
>> file to class path for the job.
>>
>> Thanks,
>> Mayank
>>
>>
>> On Wed, Jun 6, 2012 at 7:25 AM, Manu S <manupk...@gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> We are running a mapreduce job in a fully distributed cluster.The output
>>> of the job is writing to HBase.
>>>
>>> While running this job we are getting an error:
>>>
>>> *Caused by: 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>(ZooKeeperWatcher.java:155)
>>> at
>>> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getZooKeeperWatcher(HConnectionManager.java:1002)
>>> at
>>> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.setupZookeeperTrackers(HConnectionManager.java:304)
>>> at
>>> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:295)
>>> at
>>> org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:157)
>>> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:169)
>>> at
>>> org.apache.hadoop.hbase.client.HTableFactory.createHTableInterface(HTableFactory.java:36)
>>>
>>>
>>> I had gone through some threads related to this issue and I modified the
>>> *zoo.cfg* accordingly. These configurations are same in all the nodes.
>>> Please find the configuration of HBase & ZooKeeper:
>>>
>>> Hbase-site.xml:
>>>
>>> <configuration>
>>>
>>> <property>
>>> <name>hbase.cluster.distributed</name>
>>> <value>true</value>
>>> </property>
>>>
>>> <property>
>>> <name>hbase.rootdir</name>
>>> <value>hdfs://namenode/hbase</value>
>>> </property>
>>>
>>> <property>
>>> <name>hbase.zookeeper.quorum</name>
>>> <value>namenode</value>
>>> </property>
>>>
>>> </configuration>
>>>
>>>
>>> Zoo.cfg:
>>>
>>> # The number of milliseconds of each tick
>>> tickTime=2000
>>> # The number of ticks that the initial
>>> # synchronization phase can take
>>> initLimit=10
>>> # The number of ticks that can pass between
>>> # sending a request and getting an acknowledgement
>>> syncLimit=5
>>> # the directory where the snapshot is stored.
>>> dataDir=/var/zookeeper
>>> # the port at which the clients will connect
>>> clientPort=2181
>>> #server.0=localhost:2888:3888
>>> server.0=namenode:2888:3888
>>>
>>> ################# Max Client connections ###################
>>> *maxClientCnxns=1000
>>> minSessionTimeout=4000
>>> maxSessionTimeout=40000*
>>>
>>>
>>> It would be really great if anyone can help me to resolve this issue by
>>> giving your thoughts/suggestions.
>>>
>>> Thanks,
>>> Manu S
>>>
>>
>>
>
