PM00392: DB2 LOG ANALYSIS TOOL PERFORMANCE ENHANCEMENT FOR LARGE UOWS IN HIGH SPEED MODE

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• When using DB2 Log Analysis Tool high speed mode,
  if a unit of work (UOW) is encountered that contains excessive
  number of DML (e.g., > 100,000 actions), the run times can be
  slow depending on the ordering of log records in the EXTFILE
  (log extract file) and the interspersion of other UOW records
  amongst the large UOW. This change greatly reduces those long
  run times by indexing only the large units of work.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of DB2 Log Analysis Tool.              *
  ****************************************************************
  * PROBLEM DESCRIPTION: When using DB2 Log Analysis Tool high   *
  *                      speed mode, if a unit of work (UOW) is  *
  *                      encountered that contains excessive     *
  *                      number of DML                           *
  *                      (e.g., > 100,000 actions), the run      *
  *                      times can be slow depending on the      *
  *                      ordering of log records in the EXTFILE  *
  *                      (log extract file) and the              *
  *                      interspersion of other UOW records      *
  *                      amongst the large UOW. This change      *
  *                      greatly reduces those long run times    *
  *                      by indexing only the large units of     *
  *                      work.                                   *
  ****************************************************************
  * RECOMMENDATION: APPLY the PTF.                               *
  ****************************************************************
  Code has been changed to correct this condition.
  

Problem conclusion

Temporary fix

Comments

• APPLY the PTF.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

•    ALAA07
  

Fix information

• Fixed component name

  DB2 LOG ANALYSI

• Fixed component ID

  5655E6601

Applicable component levels

• R310 PSY UK52770

     UP09/12/17 P F912

• R320 PSY UK52771

     UP09/12/17 P F912

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.