Use the fs2cs conversion utility
You can use the fs2cs conversion utility to automatically convert certain Fair Scheduler configuration to Capacity Scheduler configuration.
From the CDP Private Cloud Base 7.1 release, Cloudera provides a
conversion tool, called fs2cs conversion utility. This utility is a CLI
application that is part of the yarn CLI command. It generates
capacity-scheduler.xml
and yarn-site.xml
as output files.
- Be aware of the Fair Scheduler properties that are auto-converted, those that require manual configuration, and those that do not have an equivalent feature in Capacity Scheduler.
- You must have downloaded and distributed parcels for the target version of CDP.
- In VPC, to use your current Compute Cluster queue
configurations in your new installation after the upgrade, you must
have manually saved them before starting the update process and then
added the configurations to your new installation. Else, your Compute
Cluster queue configurations will be lost because the Upgrade Wizard
transitions only the queues from your Base Cluster.
- In Cloudera Manager, navigate to .
- Find the host with the ResourceManager role and click the YARN ResourceManager role.
- Click the Processes tab.
- Find and save the
fair-scheduler.xml
andyarn-site.xml
configuration files for future reference.
After the migration is completed, manually tune the configuration generated by the fs2cs conversion utility using Queue Manager UI and Cloudera Manager Advanced configuration snippet (Safety Valves).