IV30911: BY DEFAULT LOG FILES CAN GROW UNLIMITED IN SIZE. IN ADDITION THE DOCUMENTATION SAYS THE DEFAULT LIMIT IS 102400 BYTES.

ITNMIP_Patch_V3.8.0.89_AIXPPC32
3.8.0-TIV-ITNMIP-Linux-REF-FP0007
3.8.0-TIV-ITNMIP-Solaris-REF-FP0007
ITNMIP_Patch_V3.8.0.89_Win32
IBM Tivoli Network Manager IP 3.9.0 Fix Pack 3, 3.9.0-TIV-ITNMIP-FP0003
IBM Tivoli Network Manager IP 3.9.0 Fix Pack 4, 3.9.0-TIV-ITNMIP-FP0004
IBM Tivoli Network Manager IP Edition 3.9.0 Fix Pack 5, 3.9.0-TIV-ITNMIP-FP0005

APAR status

• Closed as program error.

Error description

• Product: Tivoli Network Manager
  Version:  3.8, 3.9
  Component: Log file rotation
  
  
  Problem: By default, there is no limit to the size logs can grow
  to. In addition the documentation needs to be updated to say
  the default limit is 1GB and add a note on estimating log space
  for planning.
  

Local fix

• UNIX: modify  ncp_control.sh to check if NDE_LOGFILE_MAXSIZE
  and NDE_LOGFILE_ROTATION_TIME variables have been set.  If
  neither exists, then set NDE_LOGFILE_MAXSIZE to 1GB.
  
  
  No change for Windows, except the documentation should note that
  there is no default limit to the log size and users should set a
  limit using the NDE system environment variables if desired.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users in Unix Platforms                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * The ncp_poller process crashes due to trace files reaching 2 *
  * GB in size. By default, there is no size limit on the log    *
  * files for Network Manager core processes. When their size    *
  * reaches 2 GB, the logs cause a core dump or stop logging     *
  * depending on the operating system.                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * The following fix packs will contain the fix:                *
  * | fix pack | 3.8.0-ITNMIP-FP0007                             *
  * | fix pack | 3.9.0-ITNMIP-FP0003                             *
  * Install 3.9 fixpack 3 or 3.8 Fp3 then perform following post *
  * installation:                                                *
  *                                                              *
  * POST INSTALLATION                                            *
  * =======================                                      *
  *                                                              *
  * Please manually add the following changes in                 *
  * $NCHOME/precision/install/templates/ncp_control.sh to        *
  * $NCHOME/precision/bin/ncp_control.sh:                        *
  *                                                              *
  * # Check if NDE_LOGFILE_MAXSIZE and NDE_LOGFILE_ROTATION_TIME *
  * have been set.                                               *
  * # If neither exists, then set NDE_LOGFILE_MAXSIZE to 1GB.    *
  * if [ -z "$NDE_LOGFILE_MAXSIZE" ]  && [ -z                    *
  * "$NDE_LOGFILE_ROTATION_TIME" ]; then                         *
  *     NDE_LOGFILE_MAXSIZE=1000000000; export                   *
  * NDE_LOGFILE_MAXSIZE                                          *
  * fi                                                           *
  ****************************************************************
  

Problem conclusion

• On UNIX systems, ncp_control.sh checks if the
  NDE_LOGFILE_MAXSIZE and the NDE_LOGFILE_ROTATION_TIME variables
  have been set. If neither of them exists, then the
  NDE_LOGFILE_MAXSIZE environment variable is set to 1GB. Note
  that setting NDE_LOGFILE_MAXSIZE to 1 GB is only done if the
  user has not set the NDE environment variables for the account
  running the Netowrk Manager core processes.
  
  On Windows systems, there is no default limit to the log size,
  if required, set a limit using these variables as system
  environment variables.
  
  The following fix packs will contain the fix:
  | fix pack | 3.8.0-ITNMIP-FP0007
  | fix pack | 3.9.0-ITNMIP-FP0003
  

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

  TIV NETWK MGR I

• Fixed component ID

  5724S4500

Applicable component levels