IT44906: MEMORY LEAK IN STORAGE PROTECT SERVER DURING REPLICATION CAUSED BY IT41527

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

• Memory leak in Storage Protect Server can be found when running
  replication. It manifests with dsmserv binary consuming more and
  more memory until it
  eventually crashes. This is caused by an APAR IT41527.
  
  Running SHOW ALLOC from dsmadmc in few iterations, the following
  can be seen:
  
  ...
  nrfs.c line 4208: 475634 entries for 5098796480 bytes
  (FromCache) thread 1(main parent=0)
  tbtbl.c line 7044: 493546 entries for 2552240544 bytes
  (TbAllocRowResult) thread 1(main parent=0)
  ...
  
  The allocation from nrfs.c keeps growing in number and size and
  there is a corresponding increase in the growth from tbtbl.c
  
  Storage Protect versions affected: 8.1.17 and later on all
  platforms.
  
  Additional Keywords: memory, dsmserv, Storage Protect,
  TS014354888, IT41527
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All IBM Storage Protect server users.                        *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is currently *
  * projected to be fixed in level 8.1.22. Note that this is     *
  * subject to change at the discretion of IBM.                  *
  *                                                              *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Platforms fixed:  AIX, Linux, and Windows.
  

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