PH64810: JAVACORE MAY BE PRODUCED WHEN USING JAVA API TO CALL A MAP THAT THEN USES THE OPGP ADAPTER REPEATEDLY

APAR status

• Closed as program error.

Error description

• This issue can occur on the Linux platform when using the IBM
  Sterling Transformation Extender (ITX) Java IP to call a map
  repeatedly that then uses the OPGP adapter.
  
  A failure was raised from OS method after the library
  'libm4opgp.so' called some OS API.  (Java exception was raised
  only to process the signal)
  
  
  gsignal+0x37 (0x00007F00798F9387 [libc.so.6+0x36387])
  abort+0x148 (0x00007F00798FAA78 [libc.so.6+0x37a78])
  (0x00007F006F18D3EB [libj9prt29.so+0x263eb])          0x263eb
  <mainSynchSignalHandler+171>
  (0x00007F007A0C6630 [libpthread.so.0+0xf630])
  pthread_join+0x11 (0x00007F007A0BFF81 [libpthread.so.0+0x8f81])
  _Z32intm4opgpWaitForPipeReaderThreadP6MPIOBJP17FILEDES_READ_INF
  O+0x4b(0x00007F004B5D68B4 [libm4opgp.so+0x78b4])
  _Z25intm4opgpPerformOperationP19M4OPGPADAPTERSTRUCTPPc+0x64c
  (0x00007F004B5D7566 [libm4opgp.so+0x8566])
  m4opgpGet+0x1f5 (0x00007F004B5D2A3C [libm4opgp.so+0x3a3c])
  _ZN15CMpiUserAdapter3GetER14CMpiConnection+0x10
  (0x00007F007A32A4B0 [libdstxpi.so+0x574b0])
  mpiAdaptGet+0x5a (0x00007F007A347ECA [libdstxpi.so+0x74eca])
  (0x00007F0002EDA982 [libmercrmgr.so+0x18982])
  InvokeAdapterMethod+0x89 (0x00007F0002EDAB89
  [libmercrmgr.so+0x18b89])
  RMThread+0xea (0x00007F0002EDACC7 [libmercrmgr.so+0x18cc7])
  (0x00007F0002ED37F3 [libmercrmgr.so+0x117f3])
  (0x00007F007A0BEEA5 [libpthread.so.0+0x7ea5])
  
  As per the above stack trace, a crash occured in OpenPGP adapter
  
  library, intm4opgpWaitForPipeReaderThread().
  

Local fix

• ITXCQ - ITX00062762
  PB / PB
  Circumvention: None
  

Problem summary

• Users Affected:
  IBM Transformation Extender users that invoke the ITX through
  java in a heavily multi-threaded environment.
  
  Problem Description:
  The OpenPGP adapter hangs when multiple Java threads are started
  from a Java service, particularly when each of the threads
  invoke the adapter via the Java-based TX map API.
  
  Platforms Affected:
  All Unix type OS
  

Problem conclusion

• The OpenPGP adapter ensures that the child GNUPG process starts
  up in a timely way on UNIX platforms. Otherwise, it signals the
  child process to ensure that core-related cleanup processing is
  not hung. This functionality is only activated when the
  "TX_OPGP_POLL_TIME_IN_SECS" environment variable is set to the
  number of seconds to wait for GPG child process status message.
  If notification is still not received after the initial signal,
  then an adapter failure gets returned and the error is logged to
  the adapter trace file.
  
  Applies to:
  10.1.2.1, 11.0.0.0, 11.0.1.0
  
  Fixed in the next service packs and releases.
  
  To obtain the fix for this APAR:
  
  To see if the next fix pack or product release is available,
  check the IBM Transformation Extender product Release Notes
  page:
  https://www.ibm.com/support/pages/node/318755
  
  If a fix pack release is available, download it from Fix
  Central:
  http://www.ibm.com/support/fixcentral/
  
  If a new product release is available, download it from
  PassportAdvantage:
  https://www.ibm.com/software/passportadvantage/pao_customer.html
  
  
  If the fix pack or product release is not available and you
  require the APAR fix immediately, request a Limited Availability
  Interim Fix (LAIF) by opening a support Case:
  https://www.ibm.com/mysupport
  

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

  ITX

• Fixed component ID

  5724Q2300

Applicable component levels