IT17779: STATUS MONITORING MEMORY LEAK IN "TUMATCHSTRCOLANDINTCOL" FUNCTION

7.1.7.100-TIV-TSMSRV-WIN
7.1.7.100-TIV-TSMSRV-SolarisSPARC
7.1.7.100-TIV-TSMSRV-Linuxx86_64
7.1.7.100-TIV-TSMSRV-Linuxs390x
7.1.7.100-TIV-TSMSRV-Linuxppc64
7.1.7.100-TIV-TSMSRV-HP-UX
7.1.7.100-TIV-TSMSRV-AIX
IBM Spectrum Protect Server V7.1.7.X interim fix downloads
IBM Spectrum Protect Server V7.1 Fix Pack 8 (7.1.8.000) Downloads

APAR status

• Closed as program error.

Error description

• A memory leak can occur for Server version 7.1.3 and higher
  with Operation Center and replication configured.
  
  Using 'show alloc' this issue will show high memory usage over
  time of the "tuMatchStrColAndIntCol" function.
  
  The problem will happen if all the following
  conditions are met:
  
  1. Server version is 7.1.3.0 through 7.1.7.0.
  2. Replication is configured on the server.
  3. One or more nodes is enabled for replication and with
     replication mode = SEND.
  4. Status monitoring is set to 'ON' to work with the
     Operation Center.
  
  For example:
  
  tumatch.c line   335:   115831 entries for    1231741892 bytes
  (tuMatchStrColAndIntCol) thread
  395(TablesMonitoringThreads[i].monT parent=35)
  The affected server can be a "hub" server or a "spoke" server.
  
  Eventually, due to the memory leak during status monitoring the
  host system can run out of free memory and paging/swap space and
  can stop.
  
  
  IBM Spectrum Protect versions affected:
  Server 7.1.3.0 and higher on all supported platforms
  
  | MDVREGR 7.1.3.0-TIV_5698MSV |
  
  Initial Impact: Medium
  
  Additional Keywords:  TSM IBM Spectrum Protect memleak memory OC
  

Local fix

• Restart the server process/service
  
  or
  
  Stop status monitoring with "SET STATUSMONITOR OFF" but this
  means no monitoring data is sent to Operations Center.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All IBM Tivoli Storage Manager server users.                 *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is currently *
  * projected to be fixed in levels 7.1.7.100 and 7.1.8. Note    *
  * that this is subject to change at the discretion of IBM.     *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms for reported release:  AIX, HP-UX, Solaris,
  Linux, and Windows.
  Platforms fixed:  AIX, HP-UX, Solaris, 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