Uploaded image for project: 'Traffic Server'
  1. Traffic Server
  2. TS-3413

High CPU utilization when processing Http/2 traffic

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 5.3.0
    • Component/s: HTTP/2, Performance
    • Labels:
      None

      Description

      Running ATS in forward transparent mode with Http/2 support enabled. After a few page views, ATS gets into a state where it is consistently using more than 100% CPU. I think what is happening is that the origin server is closing the connection (we get a TS_EVENT_VCONN_EOS in FetchSM). FetchSM sends a BODY_DONE to Http2ClientSession but the http_vc (origin socket?) is never closed, so with each poll interval the EOS is reported again and again.

        Attachments

        1. ts-3413.diff
          0.8 kB
          Susan Hinrichs

          Issue Links

            Activity

              People

              • Assignee:
                shinrich Susan Hinrichs
                Reporter:
                shinrich Susan Hinrichs
              • Votes:
                0 Vote for this issue
                Watchers:
                5 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: