IT44595: REPLICATION CAN CRASH THE SERVER WHEN NO NODES ARE CONFIGURED FOR REPLICATION

8.1.22.000-IBM-SPSRV-WindowsX64
8.1.22.000-IBM-SPSRV-Linuxx86_64
8.1.22.000-IBM-SPSRV-Linuxs390x
8.1.22.000-IBM-SPSRV-Linuxppc64le
8.1.22.000-IBM-SPSRV-AIX

APAR status

• Closed as program error.

Error description

• When replication is run by IBM Storage Protect server, without
  any nodes configured, the end status for the process would be
  the following:
  ......................              completed. Files current: 0.
  Files replicated: 0 of 0.
              Files updated: 0 of 0. Files deleted: 0 of 0. Amount
  
              replicated: 0 bytes of 0 bytes. Amount transferred:
  0
              bytes. Elapsed time: 0 Days, 0 Hours, 2 Minutes.
              (SESSION: ###, PROCESS: #, JOB: ##)
  
  
  When replication process does not find eligible for replication
  file spaces due to node and/or file spaces misconfiguration the
  replication process has nothing to process.
  
  In this case, there is a timing window where a possability
  exists for the main replication thread to exit and clean up
  shared objects before the child threads are finished. When the
  orphaned child threads attempt to access shared objects created
  by the main thread the server may crash.
  
  
  
  
  Support/Customer diagnostics
  
  ANR1934W and ANR2777I messages are reported the activity log.
  ANR1934W REPLICATE NODE: Node node name is disabled.
  ANR2777I REPLICATE NODE: Node node name is decommissioned and
  disabled.
  
  The following call stack, obtained from the core dump file will
  show similar to:
  
  pthread_kill(??, ??) at 0x9000000006aa2f8
  _p_raise(??) at 0x9000000006a9b84
  raise.raise(??) at 0x90000000022a628
  abort() at 0x900000000252ca0
  PsAbortServer(??) at 0x10001aa8c
  pkAbort(??) at 0x1000108b4
  pkAcquireMutexTracked(??, ??, ??) at 0x10000a4e4
  smReplFreeSession(??, ??, ??, ??) at 0x100c34804
  NrFreeSession(??, ??, ??, ??) at 0x100c0e748
  ReplTcrSessionThread(??) at 0x100cd81f4
  StartThread(0x0) at 0x100011a6cLocal Fix:
  
  
  Additional Keywords: Crash, Replication, Node configuration
  TS013571321 TSM spectrum protect
  Versions Affected: Storage Protect Server 8.1.x on all supported
  platforms.
  

Local fix

• Configure some of the nodes for replication correctly, so that
  the process has something to process,  and does not exit.
  Or do not run replication.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All IBM Spectrum Protect Server users                        *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available.                           *
  * The problem currently projected to be fixed in level 8.1.21. *
  * Note: this is subject to change at the discretion of IBM     *
  ****************************************************************
  

Problem conclusion

• This problem was fixed
  

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

  TSM SERVER

• Fixed component ID

  5698ISMSV

Applicable component levels