Error message looks like this:
Couldnot load history file hdfs://namenodeha:8020/mr-history/tmp/hdfs/job_1392049860497_0005-1392129567754-hdfs-word+count-1392129599308-1-1-SUCCEEDED-default.jhist
Actually, I know the answer to the problem. The defaul settings of /mr-history files is:
hadoop fs -chown -R $MAPRED_USER:$HDFS_USER /mr-history
But when running a job (under $HDFS_USER), job file is saved to /mr-history/tmp/hdfs under $HDFS_USER:$HDFS_USER and then not accessible to $MAPRED_USER (where JobHistory server is running). After changing the permissions back again the job file can be load.
But it is happening again with every new job. So can someone help me, what is the pernament solution to this, thank you.
I ran into the same problem. As a workaround I added the $MAPRED_USER user to the $HDFS_USER group, it helped.
My qeekey
solution was to add the mapred user to the supergroup group, so that it has permission to read other people's creations 's log.
Hadoop 2.3.0 cannot open the history server file