Oh, I don't have user vega and group vega in my local OS at all ... View more

OK! @Juanes 😉 thanks for the clarification. ... View more

Yes, User group mapping should be across the cluster nodes not only on name-node. ... View more

Hi, Is Impala session hang means not able to run any queries? Is this issue observed via hue or impala-shell? repro the issue via impala-shell and check the coordinator logs to get any suspected error messages.  At the time of issue check the cluster load how may queries running concurrently, Issue may arise if any expensive/complex operations are running. Do not frequently run "invalidate metadata" query in the cluster it is one of the expensive operations and it pressurises the catalog service.   Regards, Chethan YM     ... View more

Hi,   We may need to check the complete error stacktraces from Hue runcpserver log - /var/log/hue are you able to provide the error stacktarces ? Have you checked any LDAP group is missing in Hue or not syncrosnised?   Regards, Chethan YM ... View more

Hi @sukui    Can you add following --llvm_cpu_attr_whitelist  to Impala Daemon Command Line Argument Advanced Configuration Snippet (Safety Valve). --llvm_cpu_attr_whitelist=adx,aes,avx,avx2,bmi,bmi2,cmov,cx16,f16c,fma,fsgsbase,hle,invpcid,lzcnt,mmx,movbe,pclmul,popcnt,prfchw,rdrnd,rdseed,rtm,smap,sse,sse2,sse3,sse4.1,ssse3,xsave,xsaveopt   Restart impala and see if it helps.   Regards, Chethan YM ... View more

Could you please share screenshots of the Instance tab from both Hive and Hive on Tez services? Based on our experience, the following action should resolve the issue.   Stop and delete the "HiveServer2" and "WebHCat" instances from Cloudera Manager > Hive > Instances Check that the role "HiveServer2" is present in Cloudera Manager > Hive on Tez > Instances Verify the Configuration page for 'Hive on Tez'; ensure that 'Hive Metastore Connector' is pointed at the Hive service that is running the Hive Metastore Restart the stale services ... View more

Thank you for helping me solve the problem。 ... View more

Thanks for your response .Kindly find the below comments -> Can you check user has sudo/root permissions on these hosts? --> Sudo is working fine and permissions looks ok -> Can you do agent hard restart on these hosts and try? --> Rebooted the box -> recheck private key is valid and correct one. --> Yes, able to do login using the key from OS level (between the hosts) But still the issue persists .Kindly advice  ... View more