i enable the kerberos on the cluster and it is working fine. But due to some issue mapred user is not albe to read and display log over jobhistory server. I check the logs of job history server and it giving access error as:
as we can see the directory have access to hadoop group and mapred is in hadoop group, even then it is not able to read the logs. Similar error it is giving for /tmp/logs/<USER> folder due to which no log was displayed on resource manager UI.
I verify over all machine that hadoop group contains mapred user on all machine:
cloudera]# id mapred uid=491(mapred) gid=489(mapred) groups=489(mapred),496(hadoop)
I also kinit the mapred user and try to access manually to these directory, but mapred not able to access even when folder having 770 permission: