PM74822: TCP/IP COMMUNICATION ERROR AFTER APPLY OF UK78973 (APAR PM63132)WHEN EDITTING A JCL IN THE JS FILE

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • EQQX602E 'THE COMMUNICATION WAS UNEXPECTEDLY RESET BY THE PEER'
    WHEN TRANSFERING BIG AMOUNT OF DATA OVER TCP/IP LINK.
    THIS CAN AFFECT DIALOG USER AND PIF PGM THAT USES THE TCP/IP
    SERVER FOR REMOTE CONTROLLER ACCESS.
    IN CASE OF COMMUNICATION ERROR, THE CURRENTLY ACCESSED OBJECT,
    MAY NOT UNLOCKED.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All TWS for zOS Dialog users connected       *
    *                 through Server via TCPIP.                    *
    *                 FUNCTION=SERV                                *
    ****************************************************************
    * PROBLEM DESCRIPTION: A Dialog session, TCPIP connected, can  *
    *                      stop with messages EQQX602E or EQQX601E *
    *                      when editing a big JCL in MCP.          *
    ****************************************************************
    * RECOMMENDATION: APPLY THE PTF FIXING THIS APAR               *
    ****************************************************************
    When editing a big (which cannot fit into a 64K buffer) JCL
    from MCP Operations panel (Option 5.3 and "J" command), the
    TCPIP Dialog session with the Server drops with either one of
    these messages:
    EQQX602E 'THE COMMUNICATION WAS UNEXPECTEDLY RESET BY THE PEER'
    or
    EQQX601E ERROR on Connection To Server With ADDRESS and PORT:
    xxx yyy. WriteOnSocket in state Send failed, RC 0012, RS 0140.
    As a consequence the JCL might remain locked to the dialog
    user.
    Any data (big in size), flowing through TCPIP Server connection
    might be affected by this problem.
    

Problem conclusion

  • In the new released enhanched Server TCPIP code section,
    when the size of the object to be sent over the TCP/IP Server
    connection is over 64K, the new dynamically allocated buffer
    is correctly filled with the remaining part of the data to be
    transferred.
    602Y
    EQQZTSER
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM74822

  • Reported component name

    TIV WRKLD SCHD

  • Reported component ID

    5697WSZ01

  • Reported release

    602

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-11

  • Closed date

    2012-11-12

  • Last modified date

    2013-03-29

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    UK83435

Modules/Macros

  •    EQQZTSER
    

Fix information

  • Fixed component name

    TIV WRKLD SCHD

  • Fixed component ID

    5697WSZ01

Applicable component levels

  • R602 PSY UK83435

       UP12/12/14 P F212

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



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Document information


More support for:

z/OS family

Software version:

602

Reference #:

PM74822

Modified date:

2013-03-29

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