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Upgrading sensors on CDH


  • 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.


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

  3. Click OK.


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

  4. Deploy the new sensor JARs.