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Utilities

MetaCentrum offers various utilities on frontends.

Usage of these utilities is not necessary to get full-featured MetaCentrum services, however, it may make the work on the CLI easier.

Go to scratch

  • Command go_to_scratch changes the directory from a frontend to the scratch of a specified job
  • usage: go_to_scratch [job_ID]
  • see more on how to get job ID

Check local quota

  • If you encounter the message “exhausted root filesystem quota” on a specific node, use the check-local-quota command to diagnose the issue. This error typically occurs when your jobs generate large output (.OU), error (.ER), or temporary files in directories like /var/spool or /tmp.
  • usage: Access the node via SSH
    $ ssh novak@turin28.metacentrum.cz
    Run the following command to view files consuming your tmp filesystem quota:
    $ check-local-quota
    Inspect and manage files: If the listed files contain valuable data, copy them to /storage. Once copied, remove the unnecessary files or directories to free up space:
    $ rm file_XX
    $ rm -rf directory_XX
  • see more on FAQ/No space left on device

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