IT32870: A MEMORY LEAK CAN OCCUR IN DSMMIGRATE COMMAND IN CASE OF A LARGE NUMBER OF FILES TO BE MIGRATED.

APAR status

• Closed as program error.

Error description

• A memory leak can occur in dsmmigrate command in case of a large
  number of files to be migrated.
  For example,
  migration job via mmapplypolicy command may fail with ANS1075E
  in case of a large number of files to be migrated
  even though the value of "max memory size" on ulimit command is
  "unlimited".
  
  
  ANS1075E migrate.cpp(942)The operating system refused a IBM
  Spectrum Protect request for memory allocation.
  
  
  ++++++++++ Example of linux free command +++++++++++++++++++++
  <Memory Usage before executing mmapplypolicy command>
          total    used    free   shared  buff/cache  available
  Mem:   192944    8173   85306    3890        99464     179729
  Swap:   15257       0   15257
  Total: 208202    8173  100564
  
  
  <Memory Usage during runing mmapplypolicy command>
          total    used    free   shared  buff/cache  available
  Mem:    19294   13729     991     5390     178223      172565
  Swap:   15257       0   15257
  Total: 208202   13729   16249
  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  
  
  
  IBM Spectrum Protect Versions Affected:
  IBM Spectrum Protect Space management 7.1 and 8.1 on Linux and
  Unix platforms
  
  
  
  Initial Impact:
  Low
  
  
  Additional Keywords:
  TS003584491, dsmmigrate, memory leak
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Protect for Space Management client versions    *
  * 7.1 and 8.1 on all AIX and Linux platforms.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * see ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is projected *
  * to be fixed in level 8.1.11. Note that this is subject to    *
  * change at the discretion of IBM.                             *
  ****************************************************************
  *
  

Problem conclusion

• Memory leak issue is fixed and dsmmigrate frees memory which is
  no longer needed.
  

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:

Modules/Macros

• migrate
  

Fix information

• Fixed component name

  TSM SPACE MGMT

• Fixed component ID

  5698HSMCL

Applicable component levels