On 08/03/12 08:38, Dmitriy Ryaboy wrote:
If the task did not start at all, you want to check the setup stage to
see if there was an error. Does the MR job page have something at the
top that says "Job Setup: Failed", with "failed" being a link? Are
there error messages there?
Clicking on the status page on the link for "Job status" I see an error
in running a job:
java.lang.RuntimeException: java.io.IOException:
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@64df83e5
closed
at
org.apache.hadoop.hbase.mapreduce.TableOutputFormat.setConf(TableOutputFormat.java:200)
at
org.apache.pig.backend.hadoop.hbase.HBaseStorage.getOutputFormat(HBaseStorage.java:521)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputCommitter.getCommitters(PigOutputCommitter.java:91)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputCommitter.<init>(PigOutputCommitter.java:69)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.getOutputCommitter(PigOutputFormat.java:279)
at org.apache.hadoop.mapred.Task.initialize(Task.java:515)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:363)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1083)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.io.IOException:
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@64df83e5
closed
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:794)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:782)
at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:249)
at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:213)
at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:171)
at
org.apache.hadoop.hbase.mapreduce.TableOutputFormat.setConf(TableOutputFormat.java:195)
... 11 more
I'll dig into this, but I You have some thoughts about the above
exception, please share :)
Regards
Marcin
