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  1. #1

    Default error log confused

    In my error log file, there are many error occured such as follow:

    IdleWorkerUtil: : java.lang.NullPointerException|at
    I do not understand what's it meaning for, can someone explain why and when it would happened?


  2. #2


    Hello there.

    It sounds like you forgot to configure a VHost-level thread pool for the load test tool?

    Ensure that you have followed step 4 in the LoadTesingTool.pdf, as that's the error usually seen when that
    configuration step is not included:

    Step 4. The Load Testing tool requires the _defaultVHost_ virtual host (VHost) to have its
    own thread pool. By default, Wowza Streaming Engine is configured to use a server-level thread pool. To configure a VHost-level thread pool, edit [install-dir]/conf/VHost.xml and make the following changes:
    - HandlerThreadPool/PoolSize: 60 x [total-core-count]
    - TransportThreadPool/PoolSize: 40 x [total-core-count]



  3. #3


    but i'm not using load test tool. in my workflow, ingest the udp stream, transcode it with quicksync and then pushPublish to adobe media server.

  4. #4


    I think this may have been addressed in the latest Wowza release. Please update to Wowza 4.2.0.

    Also, make sure your Java startup settings are default.



  5. #5


    If this does not solve the problem, please open a ticket with support.

    To do so, send a zipped copy of your /conf and /logs folders to Also include a link to this thread for reference.



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