is you jdbc jars are in right place ?  ... View more

Sounds Good ! 🙂  ... View more

Hi   Please check your host file - under /etc/hosts whether it includes FQDN or not ?  if not please add , this should fix the kerberos issue       Thanks   ... View more

2. Number of roles and its memory allocation does effect the performance like swapping , gc pause .  so you have to be careful calculate them  in deployment phase .     1 .  "But what are the config changes required to perform these steps "  - Could you be  more specfic  ... View more

@prad   People ususally consider the below following during hardware sizing    1. number of disks spindles and its throughput    2.total number of time to replicate the data loss when one of the node is corrupted    we have 12x2TB which works good over 12x4TB  considering the above            ... View more

Could you let me know if you are firing hive or impala query ?  whats the coloumn delimiter you are using ?  ... View more

@GeKas  I had tried delete but the limitation is it only supports on ORC file format . (Cloudera says its not production ready) . But in one of our lower enviroment we are using without any issue until now.  Should have mentioned about the limitation that comes with. appreciate your pointer 🙂      ... View more

You should be runining the below version of HIVE  since you had mentioned cdh 5.12  hive-1.1.0+cdh5.12.2+1218 yes it should work.  ... View more

@praveenms91 @GeKas   From Hive 0.14 version it  supports UPDATE and Delete operations    Update statement can only be fired against   table only if  that  supports Transcation ACID   (Pre-requistes )    Limitations    Only rows that match the WHERE clause will be updated. Partitioning columns and Bucketing cannot be updated.   Hive Transcation - Reference  https://cwiki.apache.org/confluence/display/Hive/Hive+Transactions ... View more