Hi , I think you need to check with Power BI team whether setting parameters at session level is supported or not. It's an issue/limitation at client side. ... View more

Hi,   -> Have you tried restarting namenodes after adding the group name? -> The property name is "Superuser Group" , the "vega" is username or group name? If it is user name make sure there is "vega" group as well where "vega" user is part of and give a try again.   Regards, Chethan YM ... View more

Hi, I did not get the recommended size of kudu table, But there is a limitation like what is amount of data per tablet, how many tablets per table etc.. Please refer the below documentation: https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/kudu_limitations.html#scaling_limits   Regards, Chethan YM ... View more

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

Hi,   Use the below commands and see if you find any difference.   CREATE ROLE [role_name]; GRANT <PRIVILEGE> ON <OBJECT> <object_name> TO ROLE <roleName> GRANT ROLE <role_name> TO GROUP <groupName>;   Examples: create role testing; grant all on database <db-name> to role testing; grant role testing to group <group-name>;   In this case the user should be part of this particular group on all the cluster nodes - user group mapping at OS level is required. You can check the groups of a user using "id <user-name>".   Regards, Chethan YM     ... 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