IC95635: DSMSERV.RC SCRIPT ON LINUX DOES NOT ADHERE TO LIMITS.CONF USER L IMITS.

IBM Tivoli Storage Manager V6.3 Fix Pack 5 (6.3.5.000) Server Downloads
IBM Tivoli Storage Manager V7.1 Fix Pack 1 (7.1.1.000) Server Downloads

APAR status

• Closed as program error.

Error description

• The Tivoli Storage Manager server dsmserv.rc sysV init script
  may not adhere to the user limits (ulimit) set in the
  /etc/sysconfig/limits.conf file.  This script is used to
  automatically start the server on Linux systems that utilize
  both sysV init and Upstart init.
  
  The problem that this induces is that various ulimits may not
  be set properly, which can cause operational issues with the
  server.  Users may also notice the ANR3619W warning message.
  
  Customer/L2 Diagnostics:
  Use the following method to confirm the limits for the process:
  
  1. Determine the process ID for the dsmserv process that was
     invoked by the dsmserv.rc script:
  
  # ps -ef | grep dsmserv
  tsminst1 30162 1  0 Aug08 ? 00:06:23
     /opt/tivoli/tsm/server/bin/dsmserv -u tsminst1 -i
     /home/tsminst1 -q
  
  2. Cat the process's limits file to determine what values
     were used:
  # cat /proc/30162/limits
  Limit                  Soft Limit    Hard Limit      Units
  Max cpu time           unlimited     unlimited       seconds
  Max file size          unlimited     unlimited       bytes
  Max data size          unlimited     unlimited       bytes
  Max stack size         10485760      unlimited       bytes
  Max core file size     unlimited     unlimited       bytes
  Max resident set       unlimited     unlimited       bytes
  Max processes          95151         95151           processes
  Max open files         4096          4096            files
  Max locked memory      65536         65536           bytes
  Max address space      unlimited     unlimited       bytes
  Max file locks         unlimited     unlimited       locks
  Max pending signals    95151         95151           signals
  Max msgqueue size      819200        819200          bytes
  Max nice priority      0             0
  Max realtime priority  0             0
  Max realtime timeout   unlimited     unlimited       us
  
  3. Compare the values to those set in the limits.conf file
     to confirm a difference:
  # cat /etc/security/limits.conf
  tsminst1          soft   nofile     8096
  tsminst1          hard   nofile     21832
  
  Initial Impact:
  Medium
  
  Tivoli Storage Manager Versions Affected:
  All Linux V6 Tivoli Storage Manager server users
  
  Additional Keywords:
  TSM UPSTART MSGANR3619W ULIMIT LIMITS LIMIT RHEL REDHAT
  NOFILE NOFILES START UP START SLES SUSE ANR3619W
  

Local fix

• Edit the dsmserv.rc script in /etc/init.d/.  Place the hard
  ulimit values expected within the start() function.  For
  example:
  
  start() {
  # make sure that the server CAN create a core dump in the
  # event of an error
          ulimit -c unlimited
          ulimit -n 8096
  
  Save the file and recycle the server instance to effect the
  changes.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All 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 6.3.5 and 7.1.1. Note that this is *
  *                                                              *
  *                 subject to change at the discretion of IBM.  *
  ****************************************************************
  *
  

Problem conclusion

• This problem was fixed.
  Affected platforms: Linux.
  

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

• R63L PSY

     UP

• R71L PSY

     UP