Apache Hive Performance Tuning
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Save LLAP settings and restart services

You need to save LLAP settings at the bottom of the Ambari wizard and restart services in the proper order to activate low-latency analytical processing (LLAP).

  1. Click Save at the bottom of the wizard.
  2. If the Dependent Configurations window appears, review recommendations and accept or reject the recommendations.
  3. Navigate to the each service, starting with the first one listed under Ambari Services, and restart any services as required.
  4. Select Services > Hive > Summary and verify that HiveServer Interactive is set up and started.
  5. In Ambari, select Services > Hive > Summary and in Quick Links, click HiveServer Interactive UI to check that the LLAP application is running.

    The HiveServer Interactive UI shows LLAP running on two daemons (instances).

  6. If LLAP is not running, click HiveServer Interactive in Summary, and then, choose Restart LLAP from the Action menu.