Details

    • Type: Task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Labels:
      None

      Description

      Looking at the System Administrator's Guide, I 
      see that you recommend setting vm.swappiness = 0 in /etc/sysctl.conf. This 
      is fine in most cases, but must be avoided on RHEL 6.4 through 6.7.

      On RedHat kernels pre-2.6.32-642, there's a bug which can cause the OOM 
      killer to aggressively kill processes even when RAM is still available and 
      swap is unused. See this RedHat article for more information. (A 
      RedHat support login is required; if you don't have one, please contact me.)

      I kindly recommend you add a note to your docs advising users not to apply 
      this setting on affected kernels. Thank you!

        Attachments

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              ron_isaacson Ron Isaacson
            • Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated: