Uploaded image for project: 'MINA'
  1. MINA
  2. DIRMINA-762

WARN org.apache.mina.core.service.IoProcessor - Create a new selector. Selected is 0, delta = 0

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.0.0
    • Component/s: None
    • Labels:
      None
    • Environment:
      Linux (2.6.26-2-amd64), java version 1.6.0_12 and also 1.6.0_18.

      Description

      Mina server gets into a bad state where it constantly prints :
      WARN org.apache.mina.core.service.IoProcessor - Create a new selector. Selected is 0, delta = 0

      when this happens, server throughput drops significantly.

      to reproduce run the attached server and client for a short while (30 seconds on my box).

        Attachments

        1. StressClient.java
          5 kB
          Omry Yadan
        2. NettyTestServer.java
          5 kB
          Omry Yadan
        3. RateCounter.java
          2 kB
          Omry Yadan
        4. Screen shot 2010-02-02 at 7.49.18 PM.png
          337 kB
          Emmanuel Lécharny
        5. Screen shot 2010-02-02 at 7.49.13 PM.png
          346 kB
          Emmanuel Lécharny
        6. Screen shot 2010-02-02 at 7.48.59 PM.png
          386 kB
          Emmanuel Lécharny
        7. Screen shot 2010-02-02 at 7.48.46 PM.png
          351 kB
          Emmanuel Lécharny
        8. Screen shot 2010-02-02 at 7.48.39 PM.png
          354 kB
          Emmanuel Lécharny
        9. BufferCodec.java
          2 kB
          Omry Yadan
        10. Server.java
          2 kB
          Omry Yadan

          Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. DIRMINA-764 DDOS possible in only a few seconds...

          • Blocker - Blocks development and/or testing work, production could not run
          • Resolved

            Activity

              People

              • Assignee:
                Unassigned
                Reporter:
                omry Omry Yadan
              • Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: