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Upgrading sensors on CDH

Notice

  • Only activate the sensors when no Hive or Spark jobs are running, as the restart may affect running jobs.

  • In a multi-cluster deployment, it is mandatory to upgrade the core node for upgrading to a newer version of sensors on individual clusters.

  1. In Cloudera Manager, check for newer versions of UNRAVEL_SENSOR.

    1. In Cloudera Manager, click the parcel icon in the top menu bar.

    2. Click Check for New Parcels and look for UNRAVEL_SENSOR entries.

      If newer sensors are available, Cloudera Manager indicates this.

  2. Click Download | Distribute, and activate the newer version of the sensors.

    upgrade-server-cancel.png

    When activating the new sensors, Cloudera Manager notifies you that Hive and Spark services must be restarted.

  3. Click OK.

    upgrade-server-activate.png

    When activation is complete, Cloudera Manager automatically disables the old version.

    upgrade-server-deactivate.png
  4. Deploy the new sensor JARs.