IC66463: HPS5055 MSG IN HATS 7.5 LOG WHEN MACRO TIMES OUT WAITING FOR CREDENTIALS FROM DCAS SERVER.

Rational Host Access Transformation Services, Version 7.5.1.1
Rational Host Access Transformation Services, Version 7.5.1.2
Rational Host Access Transformation Services, version 7.5.1.3
Rational Host Access Transformation Services Fix Pack 4 (7.5.1.4) for 7.5.1
Rational Host Access Transformation Services Fix Pack 5 (7.5.1.5) for 7.5.1
Rational Host Access Transformation Services Fix Pack 6 (7.5.1.6) for 7.5.1

APAR status

• Closed as program error.

Error description

• Customer has HATS 7.5 using SSL telnet connection to 3270
  host, and is using Web Express Logon (WEL) for single signon.
  This is being accomplished using a custom credential mapper
  in the DCAS client, which is the HATS application, and it
  talks to the DCAS server.
  The HATS application runs fine for some amount of time, but
  after several minutes in a stress test (or about a week in
  production use), the communication with the DCAS server stops,
  which seems to hang all users.  HPS5055 messages are logged in
  the HATS log, followed by HPS5145 messages after that time.
  

Local fix

• revert to V6 level of the HATS application..
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of HATS applications that use DCAS     *
  *                 for logon to host system.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: HPS5145 messages occur and DCAS         *
  *                      activity stops under heavy load         *
  *                      conditions.  This causes macros and     *
  *                      sessions waiting on the DCAS            *
  *                      processing to time out.                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Timing issues associated with thread synchronization in the
  DCAS code, provided by HACL in the HATS application, were
  causing a hang condition that was unrecoverable without
  restarting the HATS application.
  

Problem conclusion

• HACL code was fixed and incorporated into HATS which
  resolves the thread synchronization issue.
  
  Fix is scheduled for HATS 7.5.1.
  

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:

Modules/Macros

• HODDCAS
  

Fix information

• Fixed component name

  RATL HATS MULTI

• Fixed component ID

  5724U6700

Applicable component levels

• R710 PSN

     UP

• R750 PSY

     UP