WebSphere Application Server & Liberty

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  • 1.  WebSphere for z/OS application socket

    Posted Thu November 23, 2023 01:29 AM

    Hello, 

    I have an error code that I can't find, even in the documentation for USS errors and codes. It randomly happens when an application tries to connect from one application server on one LPAR to a different application server in another LPAR and CEC:

    java.net.ConnectException: EDC8128I Connection refused. (errno2=0x74940000) (Connection refused)

    I need to know the meaning of the code. 

    Can anyone help? 

    Thanks in advance.



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    Diego Cardalliaguet
    Europe, Middle East and Africa GEO Technical Sales
    IBM
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  • 2.  RE: WebSphere for z/OS application socket

    Posted Fri November 24, 2023 08:48 AM

    All that error means is that it could not connect for some reason.  On the other LPAR there is a probably a message in the logs about something not being available or failed.  You can also look at job and see if anything was unavailable for a moment.  

    Brian



    ------------------------------
    Brian S Paskin
    Sr. Technology Engineer
    IBM Cloud Engineering
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    Original Message


  • 3.  RE: WebSphere for z/OS application socket

    Posted Fri November 24, 2023 08:59 AM
    Edited by Diego Cardalliaguet Fri November 24, 2023 09:02 AM

    Yes, the error means that the port is not available. But it is or it should. That's why I need to understand the errn2 code. 

    Thanks!



    Original Message


  • 4.  RE: WebSphere for z/OS application socket

    Posted Fri November 24, 2023 09:21 AM

    There are lots of reasons why you would get that error.  However, it is not usually an error from the client side, unless there are no resources available, in which case there would be other messages, including in the job logs.  You should check the remote system first.  I also see this when there is a misconfiguration, but you state it is working most of the time.  If this is tWAS, make sure at the time of the error all the threads were not consumed.  

    There are a few patches a see for this error too.  So if the system and app server is not patched, then you could run into this error.

    For more help, since this is z, please open a support case.

    Brian



    ------------------------------
    Brian S Paskin
    Sr. Technology Engineer
    IBM Cloud Engineering
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    Original Message


  • 5.  RE: WebSphere for z/OS application socket

    Posted Fri November 24, 2023 09:36 AM 
    bpxmtext 74940000
TCPIP
JROK: The return code value describes the error

Action: Refer to the return code for information on the error.


    ------------------------------
    Brian S Paskin
    Sr. Technology Engineer
    IBM Cloud Engineering
    ------------------------------

    Original Message