5.3.3. Downgrade Hive Metastore(s)

Downgrade each Hive Metastore server one at a time, as described below. There is no order that needs to be followed.

Note: Existing connections to the Metastore will be dropped during this process, and there is a chance that running CLI jobs may fail. However, the Metastore will automatically retry any failed jobs.

  1. Find the Hive Metastore server process ID and stop the process. For example:

    # ps aux | grep hive
    hive 129414 0.1 3.3 2002400 131332 ...
    # kill 129414
  2. Switch to the previous software version and start the server:

    hdp-select set hive-metastore

    su - hive -c "nohup /usr/hdp/current/hive-metastore/bin/hive --service metastore>/var/log/hive/hive.out 2>/var/log/hive/hive.log &"

  3. Validate the downgrade process: make sure that the following jobs run successfully.

    • Hive/MapReduce job

    • Hive/Tez job

Continue with the next downgrade step.

loading table of contents...