Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-72978

Random high query response and very high CPU on running rs combination with 4.2.20 and 4.4.18 versions

    • Type: Icon: Bug Bug
    • Resolution: Incomplete
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 4.2.20, 4.4.18
    • Environment:
    • ALL
    • Hide

      1- run 2 data members with 4.2.20 and 2 data members with 4.4.18

      2- put medium to high load(read/writes) on rs and observe

      Show
      1- run 2 data members with 4.2.20 and 2 data members with 4.4.18 2- put medium to high load(read/writes) on rs and observe

      Scenario - We run tests with same load on 2 mongo versions(4.2.20,4.4.20).
      We found high query response(in range of 3-4 seconds)  and very high cpu(100%) on primary for 4.2.20 version but no issue was found on 4.4.18

      • As per the suggestion in Server-67217, we also collected disk usage but we did not find any high disk read/write at the issue time.
      • In Server-67217, we did same test between (4.2.20 and 4.0.27) and still issue was found on 4.2.20 primary members only.
      • Kindly refer Server-67217 for more details about the issue.

      Note: Please provide cloud link to upload respective logs.

            Assignee:
            chris.kelly@mongodb.com Chris Kelly
            Reporter:
            kg3634@gmail.com KAPIL GUPTA
            Votes:
            25 Vote for this issue
            Watchers:
            12 Start watching this issue

              Created:
              Updated:
              Resolved: