IT37542: INTEGRATION SERVER NOT BEING STARTED IF .PID FILE EXISTS CONTAINING PROCESS ID OF ZERO

APAR status

• Closed as program error.

Error description

• On startup, an integration server writes its process id to a
  file called .pid in the work path. On shutdown, the .pid file is
  normally removed. When an integration node restarts, it checks
  for the existence of these .pid files in case the integration
  node process had terminated abnormally and needs to adopt the
  still running integration servers on restart. If a .pid file
  exists for an integration server and contains the value 0, the
  integration node is incorrectly determining that the integration
  server is already running and does not attempt to start it.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM App Connect Enterprise V11 and V12 on AIX.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  On startup, an integration server writes its process id to a
  file called .pid in the work path. On shutdown, the .pid file is
  normally removed. When an integration node restarts, it checks
  for the existence of these .pid files in case the integration
  node process had terminated abnormally and needs to adopt the
  still running integration servers on restart. On AIX, if a .pid
  file exists for an integration server and contains the value 0,
  the integration node is incorrectly determining that the
  integration server is already running and does not attempt to
  start it.
  

Problem conclusion

• The product now does not attempt to adopt an integration server
  process if the .pid file contains the value zero.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v11.0      11.0.0.15
  v12.0      12.0.3.0
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

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

  APP CONNECT ENT

• Fixed component ID

  5724J0550

Applicable component levels