PK31071: FPEV1320S, FPEV0158W, FPEV1313I, PORT 5XXX CONFLICT FPEV1312E DBD2 0 TCP/IP FUNCTION CALL 'ACCEPT ' FAILED.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• An application
  .net application is sending a request to our OMPE v310 server
  and since it is finding our PORT instead of the db2 PORT we
  experience contention and messages:
  09.41.44 STC07405  FPEV1320S  DBD4 1 TCP/IP SESSION MANAGER
  RECEIVED
  INVALID REQUEST)
  The application continues to attempt a connect to us hence we
  start
  to experience the
  FPEV0158W  DBD4 09:42:40.03 DATA SERVER DETECTED HIGH CPU USAGE
  (43%)
  OF TASK DGOVTCPL
  message.
  .
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM V310            *
  *                 users of component:                          *
  *                 -   OMEGAMON Server                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: The service level of the                *
  *                      OMEGAMON Server is:                     *
  *                      FPEV0000I  DATA SERVER INITIALIZATION   *
  *                      FPEV0114I  PTF BUILD IS 06.258          *
  *                      -------------------                     *
  *                      When another application than the PE    *
  *                      Client continuously tries to connect    *
  *                      to the Data Server instance TCP/IP      *
  *                      port the connection is rejected and     *
  *                      the message FPEV1320S is issued. When   *
  *                      the connect requests are fired rather   *
  *                      frequently the available ports might    *
  *                      become exhausted and the handling of    *
  *                      further incoming requests will cause    *
  *                      HIGH CPU consumption. When the HIGH     *
  *                      CPU persists the WATCHDOG starts        *
  *                      internal traces and finally issues      *
  *                      an SDUMP request and terminate the      *
  *                      TCP/IP subtask. During the phase of     *
  *                      concurrent high CPU condition, tracing  *
  *                      and storing the dump data the Data      *
  *                      Server might be less responsive to      *
  *                      stop requests.                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• When the Data Server TCP/IP subtask detects invalid requests
  the message FPEV1320S is issued. The message is extended to
  contain the IP address and port of the connecting application
  which erroneously uses the Data Server port. The port handling
  the invalid request is closed immediately thereafter.
  If this happens frequently this can result in unnecessary CPU
  requests should be located and modified quickly.
  ---------------
  
  SYSMOD TITLE: Data Server TCP/IP subtask invalid requests
  KEYWORDS:  Server TCP/IP invalid request
  

Temporary fix

Comments

APAR Information

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

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

  UK18054

Modules/Macros

•    DGOVMSTR DGOVTCPD DGOVTCPS DGOVTSX  FPEUFFER
  FPEUFFE2 FPEUFIOI FPEUFIO2 FPEUFOCR FPEUFOC2 FPEUFUIS FPEUFUIT
  FPEUFUNI FPEUFUN2 FPEUFWMG FPEUFWMX FPEUFYDY FPEUFYD2 FPEUFYLD
  FPEUFYST FPEUFYS2 FPEUIFCI FPEUIFC2 FPEUMSGS
  

Fix information

• Fixed component name

  OM XE DB2PE/PM

• Fixed component ID

  5655OPE00

Applicable component levels

• R310 PSY UK18054

     UP06/09/20 P F609

Fix is available

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