Additional Configuration Tasks

Make sure you consider these additional configurations as part of your DAS installation.

1. Work with HiveServer2: If your Hive deployment is not LLAP-enabled and does not have Hive Server Interactive, you need to update the configuration for DAS to work with HiveServer 2 as follows:

   Go to Ambari > Data Analytics Studio > Configs and change use.hive.interactive.mode=true to use.hive.interactive.mode=false

2. Cleanup of Audit Log: Audit Log is written by Hive/Tez to HDFS for DAS to consume. Once DAS consumes them, this information on HDFS is no longer required. They are cleaned automatically via a thread in HMS (Hive metastore).

   The time to live count of the audit logs is defined in the hive.hook.proto.events.ttl parameter. By default, the logs are retained for seven days. To configure a custom value:

   1. On the Ambari UI, go to Hive > HiveMetaStore > Configs and specify the time to live in the hive.hook.proto.events.ttl parameter.

      For example, to retain the logs for 30 days, specify 30d.

      Typically, a 30-day duration is useful if you want to download older DAG data.

   2. Restart Hive service.