Skip to main content

         This documentation site is for previous versions. Visit our new documentation site for current releases.      

This content has been archived and is no longer being updated.

Links may not function; however, this content may be relevant to outdated versions of the product.

Verifying the available disk space

Updated on March 11, 2021

This content applies only to On-premises and Client-managed cloud environments

Ensure the stability and availability of a Cassandra deployment on Pega Platform by providing enough disk space to run compactions.

To run compactions without errors, ensure that you have at least 60% free disk space.
  1. In the header of Dev Studio, click ConfigureDecisioningInfrastructureServicesDecision Data Store.
  2. On the Decision Data Store landing page, click the status of the node for which you want to check the available disk space.
  3. In the Disk usage section, verify that the amount of existing data constitutes less than 40% of the total disk space.
    The amount of data shown in the Disk usage section refers to data in SSTables, and does not include the disk space that Cassandra uses for compaction.
  4. If the existing data takes up more than 40% of the total disk space, provide Cassandra with more disk space by removing obsolete files, or by adding more disk space.
    To remove obsolete Cassandra files, in the nodetool utility, run the nodetool cleanup command. For more information about adding additional disk space, see the Apache Cassandra documentation.

Have a question? Get answers now.

Visit the Support Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best. is not optimized for Internet Explorer. For the optimal experience, please use:

Close Deprecation Notice
Contact us