PM23309: OMPROUTE ABNORMALLY TERMINATES EZZ8074I/EZZ7805I AFTER EZZ7842I INFORMATIONAL RECV() ERROR WITH ERROR 1121 AND ERRNO2 76650446

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In a scenario where OMPROUTE encounters a receive error on
  the informational sockets connection (internal loopback)
  between OMPROUTE and TCPIP stack, TCPIP resets the connection
  and OMPROUTE terminates abnormally.  For example, the
  following messages are issued leading to OMPROUTE termination:
  
    EZZ7842I INFORMATIONAL RECV() ERROR, ERRNO=1121:EDC8121I
             CONNECTION  RESET., ERRNO2 76650446
    EZZ8074I OMPROUTE PROCESSING ERROR
    EZZ7805I OMPROUTE EXITING ABNORMALLY - RC(1)
  
  Even with error2 76650446 (JRSOCKETCONNDROPPED) and that the
  TCPIP stack is still active, OMPROUTE will not try to open a new
  connection for recovery. In this case, OMPROUTE has to be
  manually restarted.
  

Local fix

• Use automation utility to monitor for EZZ7842I and ERRNO2
  76650446 to restart OMPROUTE. For other errors indicating
  TCPIP stack outage (for example, 746D0381 JRPREVSOCKERROR
  or xxxx0296 JRTCPNOTACTIVE), restart TCPIP and OMPROUTE.
  
  KEYWORDS:
  OMPROUTE EZAORIRT INFOSOCKET LOOPBACK 127.0.0.1 EZZ7842I
  INFORMATIONAL RECV ERROR 76650446 JRSOCKETCONNDROPPED
  1121 EDC8121I CONNECTION RESET EZZ8074I EZZ7805I 746D0381
  JRPREVSOCKERROR TCPIP
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the IBM Communications Server   *
  *                 for z/OS Version 1 Release(s) 10, 11, and    *
  *                 12 IP:  OMPROUTE                             *
  ****************************************************************
  * PROBLEM DESCRIPTION: OMPROUTE terminates after msgEZZ7842I   *
  *                      informational recv() error with error   *
  *                      1121.                                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  OMPROUTE terminates after msgEZZ7842I informational recv() error
  with error 1121.  The informational socket connection is aborted
  for an unknown reason and OMPROUTE treats this as a terminating
  condition.  One possible reason for the connection aborting is a
  NETSTAT DROP was issued against the connection.
  OMPROUTE should treat this as a retry condition and attempt
  to create a new informational socket connection.  If the new
  informational socket cannot be created then OMPROUTE should
  terminate.
  +-------------------------------------------------------------+
  + Please check our Communications Server for OS/390 homepages +
  + for common networking tips and fixes.  The URL for these    +
  + homepages can be found in Informational APAR II11334.       +
  +-------------------------------------------------------------+
  

Problem conclusion

• OMPROUTE has been amended to create a new informational socket
  connection in the event the existing connection is aborted.
  
  * Cross Reference between External and Internal Names
  

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:

  UK61490 UK61491 UK61492

Modules/Macros

• EZAORFUN EZAORINI EZAORIRT
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R1A0 PSY UK61490

     UP10/11/23 P F011

• R1B0 PSY UK61491

     UP10/11/23 P F011

• R1C0 PSY UK61492

     UP10/11/23 P F011

Fix is available

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