After setting up a connection to a given Hadoop distribution in the
Repository and reusing it in your Jobs, you can change the Hadoop
distribution from one to another by creating the target Hadoop cluster connection in the
Repository and migrating the source Hadoop cluster connection to
the target, for example:
Built-in Hadoop distribution to Spark Universal distribution
Hadoop Dynamic distribution to Spark Universal distribution
Spark Universal distribution n version to Spark Universal distribution n+1
version
Spark Universal distribution vendor A to Spark Universal distribution vendor B
Information noteWarning: A Job is migratable only if the following conditions are met:
The components in the Job reuse the Hadoop cluster connection in the
repository. If the Property Type of a component is set
to Built-in, the component is not migratable.
The target Hadoop cluster contains the same type of connections in the source
distribution.
Procedure
Expand Metadata > Hadoop Cluster in the Repository tree view, right-click the
Hadoop cluster connection you want to migrate and select Migrate
Distribution to... from the contextual menu.
The distribution migration wizard opens.
In the Source column of the wizard, the source Hadoop
cluster connection is shown with the number of Jobs they are reused in. In the
Target column, select the Hadoop cluster you want to
migrate to. Click Next to go to the next step.
All Jobs in the closed state that use the Hadoop cluster connection are displayed
in the wizard.
Each component is marked with a or icon indicating if it is migratable or not.
You can use the search field to filter the Jobs or select from the drop down list
to show all migratable and not migratable Jobs. Click Next to
go to the next step.
A summary of migratable Jobs is shown in the wizard. Click
Apply to perform the migration.
The migration report page is shown. You can click the Check the
report link to open the report, or click the
Browse button to go to the
<Studio_Home>\workspace\report\massUpdate directory
where the report is saved.
The migration report is in CSV format containing the following information of
the migrated Jobs:
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In the Source column of the wizard, the source Hadoop cluster connection is shown with the number of Jobs they are reused in. In the Target column, select the Hadoop cluster you want to migrate to. Click Next to go to the next step.
or 
icon indicating if it is migratable or not. You can use the search field to filter the Jobs or select from the drop down list to show all migratable and not migratable Jobs. Click Next to go to the next step.
