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Pentaho Documentation

Execute Transformations in a Cluster

To run a transformation on a cluster, access the Execute a transformation screen and select Execute clustered.

To run a clustered transformation via a job, access the Transformation job entry details screen and select the Advanced tab, then select Run this transformation in a clustered mode?.

To assign a cluster to an individual transformation step, right-click on the step and select Clusterings from the context menu. This will bring up the cluster schema list. Select a schema, then click OK.

When running transformations in a clustered environment, you have the following options:

  • Post transformation — Splits the transformation and post it to the different master and slave servers
  • Prepare execution — Runs the initialization phase of the transformation on the master and slave servers
  • Prepare execution — Runs the initialization phase of the transformation on the master and slave servers
  • Start execution — Starts the actual execution of the master and slave transformations.
  • Show transformations — Displays the generated (converted) transformations that will be executed on the cluster