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  1. Sakai
  2. SAK-8932

Runaway CPU use on app server

    Details

    • Type: Bug
    • Status: CLOSED
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 2.3.x, 2.4.0, 2.4.1, 2.5.0, 2.5.2, 2.5.3
    • Fix Version/s: 2.5.x
    • Component/s: Chat, JSF
    • Labels:
      None

      Description

      Infrequently, we have seen a particular app server in the cluster hit some sort of condition where its CPU use climbs to 100%. Response times from the app server are significantly degraded, and catalina.out logs show ongoing GC activity.

      In some cases, the app server has run out of db connections, which may be a symptom of slow thread processing with multiple threads piling up, rather than a cause.

      This issue is to track information on this behaviour, until there's sufficient information to identify one or more causes that would enable a resolution of the problem.

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                • Assignee:
                  lance@indiana.edu Lance Speelmon (Inactive)
                  Reporter:
                  smarquard Stephen Marquard
                • Votes:
                  3 Vote for this issue
                  Watchers:
                  18 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved:

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