PM73495: ECI_ERR_INVALID_DATA_LENGTH is returned when flowing a 32767 byte COMMAREA to IPIC connected CICS servers.

CICS Transaction Gateway for Multiplatforms V9.0 (all supported platforms)
CICS Transaction Gateway Desktop Edition V9.0 (all supported platforms)
CICS Transaction Gateway for Multiplatforms V8.0 Fix Pack 6
CICS Transaction Gateway Desktop Edition V8.0 Fix Pack 6
CICS Transaction Gateway for Multiplatforms V8.1 Fix Pack 4
CICS Transaction Gateway Desktop Edition V8.1 Fix Pack 4
CICS Transaction Gateway for Multiplatforms V9.0 Fix Pack 4
CICS Transaction Gateway Desktop Edition V9.0 Fix Pack 4
CICS Transaction Gateway Desktop Edition V8.1 Fix Pack 5
CICS Transaction Gateway for Multiplatforms V8.1 Fix Pack 5
CICS Transaction Gateway for Multiplatforms V9.0 Fix Pack 5
CICS Transaction Gateway Desktop Edition V9.0 Fix Pack 5

APAR status

• Closed as program error.

Error description

• When an ECI request with a 32767 byte COMMAREA is sent to an
  IPIC connected CICS server, return code -1
  ECI_ERR_INVALID_DATA_LENGTH is received.
  

Local fix

• Use 32766 byte COMMAREAs or IPIC channels and containers
  support.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of CICS Transaction Gateway and IPIC connected CICS
  servers.
  ****************************************************************
  PROBLEM SUMMARY:
  When sending ECI requests to IPIC connected CICS servers, CICS
  TG was incorrectly restricting the maximum COMMAREA length to
  32766 bytes. The maximum usable size of a COMMAREA when using
  the IPIC protocol is 32767 bytes.
  ****************************************************************
  

Problem conclusion

• CICS TG has been changed to allow a maximum COMMAREA length of
  32767 bytes to be flowed over IPIC connections. ECI requests
  specifying COMMAREAs longer than 32767 bytes will continue to
  receive ECI_ERR_INVALID_DATA_LENGTH. This change does not
  affect non-IPIC protocols.
  

Temporary fix

Comments

APAR Information

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

  PM69924

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

Fix information

• Fixed component name

  CICS TRNS GATE

• Fixed component ID

  5724I8102

Applicable component levels

• R800 PSY

     UP