IT23390: IIB PROCESSES INHERIT FILE DESCRIPTORS FROM CHILD PROCESS

APAR status

• Closed as program error.

Error description

• If a biphttplistener process crashes unexpectedly then the
  bipbroker process will automatically spawn a replacement. This
  replacement process inherits the webadmin listening socket
  because the Java JRE does not set FD_CLOEXEC on it's file
  descriptors.
  
  If the bipbroker process then subsequently crashes unexpectedly
  the inherited file descriptor in the replacement biphttplistener
  process can prevent the web admin listener port from starting
  when bipbroker is restarted.
  
  The only solution is to stop and restart the entire broker.
  
  The same problem occurs with the bipMQTT process if this fails
  and is restarted.
  
  If mqsistart is run and its stdout and/or stderr streams are
  piped
  to a file or other command, eg:
    mqsistart TESTNODE 2>&1 |cat
  
  then the command does not exit until the node is stopped because
  the bipservice process which is spawned inherits the stdout and
  stderr streams from the mqsistart command.
  Additional Symptom(s) Search Keyword(s):
  

Local fix

• stop and restart the entire broker
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM Integration Bus V10 on Unix platforms.
  
  
  Platforms affected:
  Solaris SPARC platform, Solaris x86-64 platform, Linux on
  zSeries platform, Linux on x86-64 platform, Linux on x86
  platform, Linux on Power platform, HP-UX Itanium platform, AIX
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  IBM Integration Bus processes inherit undesired file descriptors
  from child processes upon start or restart after failure.
  

Problem conclusion

• IBM Integration Bus processes no longer inherit undesired file
  descriptors from child processes.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.0      10.0.0.12
  
  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

  INTEGRATION BUS

• Fixed component ID

  5724J0540

Applicable component levels