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Re: HBase mapreduce job: unable to find region for a table
On the webui, when you click on your table, can you see the regions and are
they assigned to the server correctly&

JM

2013/7/11 S. Zhou <[EMAIL PROTECTED]>

> Yes, I can see the table through hbase shell and web ui (localhost:60010).
> hbck reports ok
>
>   ------------------------------
>  *From:* Jean-Marc Spaggiari <[EMAIL PROTECTED]>
> *To:* [EMAIL PROTECTED]; S. Zhou <[EMAIL PROTECTED]>
> *Sent:* Thursday, July 11, 2013 11:01 AM
> *Subject:* Re: HBase mapreduce job: unable to find region for a table
>
> Hi,
>
> Is your table properly served? Are you able to see it on the Web UI? Is
> you HBCK reporting everything correctly?
>
> JM
>
> 2013/7/11 S. Zhou <[EMAIL PROTECTED]>
>
> I am running a very simple MR HBase job (reading from a tiny HBase table
> and outputs nothing). I run it on a pseudo-distributed HBase cluster on my
> local machine which uses a pseudo-distributed HDFS (on local machine
> again). When I run it, I get the following exception: Unable to find region
> for test. But I am sure the table "test" exists.
>
>
> 13/07/11 10:27:35 INFO zookeeper.ClientCnxn: Session establishment
> complete on server localhost/127.0.0.1:2181, sessionid > 0x13fcec598d70005, negotiated timeout = 90000
> 13/07/11 10:38:15 ERROR mapreduce.TableInputFormat:
> org.apache.hadoop.hbase.client.NoServerForRegionException: Unable to find
> region for test,,99999999999999 after 10 tries.
>     at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:980)
>     at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:885)
>     at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:987)
>     at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:889)
>     at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:846)
>     at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:234)
>   .....
>
> Here is my HBase hbase-site.xml file:
> <configuration>
>   <property>
>     <name>hbase.rootdir</name>
>     <value>hdfs://127.0.0.1:9000/hbase</value>
>   </property>
>   <property>
>     <name>hbase.cluster.distributed</name>
>     <value>true</value>
>   </property>
>  <property>
>     <name>hbase.zookeeper.quorum</name>
>     <value>127.0.0.1</value>
>   </property>
>
> </configuration>
>
>
>
>
>