@hxn Could you enter the password here instead of the the path to keystore pass file?   > SSLKeyStorePwd=/var/lib/cloudera-scm-agent/agent-cert/cm-auto-host_key.pw ... View more

Yes, that is the issue. Schema across all the tables is not same. For that we are trying to fill in NULL while using SELECT statement on each table for those columns which are not present in that table.  The changes for columns are not consistent accross tables. That is only few tables might update, few remain same.  ... View more

I wasn't able to make it work so simply changed my password and removed the spaces. ... View more

@sat_046, Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future.  ... View more

Thanks @smruti . Will try this and update with results. ... View more

@hxn We should not have any hiveserver2 under "Hive" service. hiveserver2 should be present only under "Hive on Tez".   If you have a hiveserver2 instance under "Hive" service, please delete it. ... View more

@dr If it's a managed table, you could get its size from TABLE_PARAMS table: e.g. SELECT a.TBL_NAME AS `TABLE`, b.PARAM_VALUE AS `SIZE` from TABLE_PARAMS b INNER JOIN TBLS a where a.TBL_ID=b.TBL_ID and b.PARAM_KEY='totalSize';   You could change the you need it. But, if there are external tables, or the table stats are not generated regularly, then you might not get the correct data.   You could get the table size using HDFS file system commands as well:   hdfs dfs -du -s -h <path to the table location>   This will give you more accurate data. ... View more

@enirys  You could refer to the following doc for Hive tuning: https://docs.cloudera.com/HDPDocuments/HDP2/HDP-2.6.5/bk_hive-performance-tuning/content/ch_connectivity-admission-control.html#guidelines-hiveserver2-heaps   If you have other services running on the same HS2 node as well, you might want to reduce Hive heap size  or move a service to a different node. Are you expecting too many connections as explained in the above doc, else you might want to bring down HS2 heap size? If you do not see too many connections, but notice high heap usage, you might want to take a heap dump as @asish mentioned, and see if there is memory leak.   Load balancing across HS2 could take place based on how you are accessing Hive. You could use zooKeeper based connection string. ... View more

@dv_conan, Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future.  ... View more

Hi @DamienO    As you say you are scanning Hive schemas, this must be putting a lot of load on Hive metastore. The driver logs suggest there are issues establishing new connections to Metastore.   org.apache.hadoop.hive.ql.metadata.HiveException:java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient:33:1 You could review HS2 logs to see how many concurrent connections were there to the HMS at the time of the issue. Check if there is scope to increase max_connection value in your rdbms, or increase Metastore Heap size to accommodate more number of connections. ... View more