@jjjjanine Thanks for providing your valuable inputs.  ... View more

If the same Node is getting down every time, it's worth checking the Memory utilization at the OS end. You can check the /var/log/messages of the NN host when the NN went down and check if the process is getting killed by an oom. ... View more

@techfriend this can be resolved after modifiying the principle. WARNING: no policy specified for mapred/ip-172-31-46-169.us-west-2.compute.internal@HADM.RU; defaulting to no policy add_principal: Principal or policy already exists while creating "mapred/ip-172-31-46-169.us-west-2.compute.internal@HADM.RU". + '[' 604800 -gt 0 ']' ++ kadmin -k -t /var/run/cloudera-scm-server/cmf5922922234613877041.keytab -p cloudera-scm/admin@HADM.RU -r HADM.RU -q 'getprinc -terse mapred/ip-172-31-46-169.us-west-2.compute.internal@HADM.RU' ++ tail -1 ++ cut -f 12 + RENEW_LIFETIME=0 + '[' 0 -eq 0 ']' + echo 'Unable to set maxrenewlife' + exit 1 modprinc -maxrenewlife 90day +allow_renewable mapred/ip-172-31-46-169.us-west-2.compute.internal@HADM.RU     ... View more

@asish Thanks!!! that worked. ... View more

@quangbilly79 It should be  /opt/cloudera/parcels/SPARK2/lib/ ... View more

@myzard Increase the timeout below. You can also check after changing the below property from Ambari UI > Advance Hive-interactive-env: Number of retries while checking LLAP app status = 40 (It will show a warning, please ignore that and save) This should increase the timeout from 400 to 800s.   If you found that the provided solution(s) assisted you with your query, please take a moment to login and click Accept as Solution below each response that helped. ... View more