Why Does the Gluster Client Process ( glusterfs ), Consume so Much Memory in Gluster versions below 3.4.4?

Solution Verified - Updated -

Issue

  • The resident set size of a glusterfs process in a Gluster client is showing a high amount of memory consumed. This can be verified in the ps auxwww command output:

    USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root     12443 40.0  1.0 4009164 2783356 ?     Ssl   2019 2391:00 /usr/sbin/glusterfs --volfile-server=server1 --volfile-id=/vol01 /mnt/gluster-mount

    The sixth field corresponds to the resident set size ( RSS). This value is expressed in KB, so the amount of memory consumed by the process posted above is approximately 2.7 GB.

  • How to reduce this high memory usage?

Environment

  • Red Hat Gluster storage versions below 3.4.4
  • Openshift Container Storage versions below 3.11.4

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