IT25796: SIGQUIT/CTRL-BREAK DOES NOT PRODUCE HEAP DUMP AS EXPECTED ON WINDOWS

APAR status

• Closed as program error.

Error description

• Problem Statement
  Enable Heap Dump on Sigquit/Ctrl-break does not work as expected
  on Windows.
  Steps to reproduce:
  1. ?Enable Heap Dump on Sigquit/Ctrl-break" option in the
  performance wizard (Menu:
  Operations - System - Performance - Tuning) and save.
  
  2. Stop SI.
  
  3. Run setupfiles (it will re-install the services)
  
  4. Start SI again.
  
  Then the PsExec?s SendSignal <Noapp_PID> command only creates
  the javacore file. No heap dump in customer's environment.
  

Local fix

• Edit <install>/bin/InstallNoappsWindowsService.cmd.in
  1.  Change on or about line 133 (line numbers may change from
  release to relase) from: echo -Xdump\:heap\:none>> %PARAM_FILE%
  
  To:
  REM echo -Xdump\:heap\:none>> %PARAM_FILE%
  
  2.  Insert lines 152 to 155 to:
  else (
          echo -Xdump\:heap\:none>> %PARAM_FILE%
      )
  3. Stop SI
  4. Run <install>/bin/setupfiles.cmd
  5. Restart SI
  
  RTC ID: 567194
  

Problem summary

• Users Affected:
  B2B Integrator 5.2
  
  Problem Description:
  Java heap dumps are configured using the -Xdump JVM command line
  option.  This option is configured during execution of the
  setupfiles.sh script.  The -Xdump command line option is
  defined more than once, each time with a conflicting value.
  Depending on the order of definition, and depending on the
  version of Windows on the host platform, the options might
  disable requested heap dump functionality.
  
  Platforms affected:
  Unix/Linux
  Windows
  iSeries
  

Problem conclusion

• Resolution Summary:
  A code fix is provided.
  
  
  Delivered In:
  5020603_7
  

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:

Fix information

• Fixed component name

  STR B2B INTEGRA

• Fixed component ID

  5725D0600

Applicable component levels