PM52839: DFHII0221 SOCKET RECEIVE EXCEPTION AFTER A GIOP HEADER CLOSE CONNECTION IS RECEIVED.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CICS Transaction Server z/OS 3.2.0
  Transaction abended with AII2 and message :
  DFHII0221 Socket Receive Exception
  The Request Receiver failed to receive a request due to
  a socket error.
  .
  CICS trace shows a receive exception:
  SO 0202 SOCK  EXIT  RECEIVE/OK   2D68A000 , 0000000C , 0000000C
  II 0132 IIRR  EVENT IIOP_DATA             RECEIVED GIOP HEADER
                                            CLOSE CONNECTION, 1/2
  
  SO 0201 SOCK  ENTRY RECEIVE     2D68A00C , 00000000 , 00000000
  
  SO 0D0B SOSO  ENTRY RECEIVE
  SO 0E00 SOUS  EVENT ASYNCIO_ENTRY         00000001
  SO 0E01 SOUS  EVENT ASYNCIO_EXIT          1,0,00000000
  SO 0D0C SOSO  EXIT  RECEIVE
  SO 0202 SOCK  EXIT  RECEIVE/EXCEPTION     CONNECTION_CLOSED,
  II 010A IIRR  *EXC* SOCK_RECEIVE_EXCEPTION
  .
  The GIOPCloseConnection message does not have message body.
  The CICS IIOP Request Receiver task however, receives
  GIOP messages in a generic fashion before more specific analysis
  and processing is done and this leads to the receive exception.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: During processing of a socket RECEIVE,  *
  *                      CICS issues message DFHII0221 The       *
  *                      Request Receiver failed to receive a    *
  *                      request due to a socket error.          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  CICS issues a socket RECEIVE for a GIOP (General Inter-ORB
  Protocol) message from a client. The message is a
  GIOPCloseConnection message. This message contains a 12 byte
  header with no body. CICS receives the header
  for the message, from which it extracts the length of
  the message body, which in this case is zero. CICS then issues
  a request for the zero length body, but by this point the
  connection has closed and the receive fails with a RECEIVE
  EXCEPTION of CONNECTION_CLOSED.
  The request receiver DFHIIRR handles all socket exceptions as
  disasters and issues msgDFHII0221, takes a system dump and
  abends the task AII2.
  
  Additional Keywords: II0221 abendAII2
  

Problem conclusion

• DFHIIRR has been amended in iirr_receive_request_body, to not
  issue an actual socket receive if there is no message body.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PM19509

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

  UK75190

Modules/Macros

•    DESIIRR  DFHIIRR  DFHIIRRA DFHIIRRM DFHIIRRS
  DFHIIRRT
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK75190

     UP12/01/21 P F201

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.