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  1. Solr
  2. SOLR-16605

CPU in UI cloud->nodes is always 0%, even when Solr is very busy.

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 9.1
    • 9.2
    • Admin UI
    • None

    Description

      The Cloud->Nodes section of the admin UI is always reporting 0% CPU even on very busy Solr nodes. I thought the attached patch would fix t, but it doesn't seem to be working. Instead of always 0%, it now shows an occasional 50% or 100%... and even rarer is a different percentage like 84% or 17%. The Solr process at that time was usng about 180% CPU (two CPUs in AWS instance).

      Using OperatingSystemMXBean from com.sun instead of java.lang seemed to work fine in a quick test program, but it's not working in Solr. I am trying this on Ubuntu Linux with OpenJDK 17 and 11.

      Attachments

        1. fixcpuadminui-1.patch
          3 kB
          Shawn Heisey

        Activity

          People

            elyograg Shawn Heisey
            elyograg Shawn Heisey
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            Dates

              Created:
              Updated:
              Resolved: