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Initial tuning results

When initial tuning is complete, you can view the tuning recommendation and the performance improvement. The improvement is measured in the amount of time that it takes for the

mapping

task to run using the recommended set of Spark properties.

The following image shows the tuning results for a particular

mapping

task:

The Tuning Result dialog box contains two sections that show the performance improvements and the tuning recommendation. The Performance Improvements section shows the difference in task duration when the task uses the tuning recommendation. The Tuning Recommendation section shows a list of the recommended Spark properties and their values. At the bottom of the dialog box, there is a button that you can use to apply the tuning recommendation.

You can apply the recommendation to use the Spark property values in the

mapping

task. You can also revert the Spark properties to their original values and apply the recommendation again.

CLAIRE Tuning

Guidelines to apply a tuning recommendation

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Initial tuning results

Initial tuning results