PH36417: A SUBSCRIPTION MAY (RE)START AT A MUCH EARLIER POSITION. A STAGING SPACE REPORT MAY SHOW A LARGE NUMBER OF URS NOT BEING SENT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A subscription may start from a much earlier position in the
  log than is warranted for the work that was ongoing when it
  previously ended. Some of the precursor conditions for this
  problem are:
  
  1) A long running UR was not yet COMMITted when
  the subscription ended.
  
  2) The subscription failed due to
  insufficient resources for the Staging Space when processing
  large URs.
  
  The Staging Space Report may show a large number of
  URs in NDPH2 disposition state. The subscription may restart
  with scraping from the point of the most recent refresh.
  

Local fix

• No local fix is available.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of InfoSphere CDC for z/OS             *
  ****************************************************************
  * PROBLEM DESCRIPTION: After PTF UI72532 is applied, a         *
  *                      subscription may start from a much      *
  *                      earlier position in the log than is     *
  *                      warranted for the work that was ongoing *
  *                      when it previously ended. Some of the   *
  *                      precursor conditions for this problem   *
  *                      are:                                    *
  *                      1. A long running UR was not yet        *
  *                      COMMITted when the subscription ended.  *
  *                      2. The subscription failed due to       *
  *                      insufficient resources for the Staging  *
  *                      Space when processing large URs.        *
  *                      The Staging Space Report may show a     *
  *                      large number of URs in NDPH2            *
  *                      disposition state. The subscription may *
  *                      restart with scraping from the point of *
  *                      the most recent refresh.                *
  ****************************************************************
  * RECOMMENDATION: APPLY CORRECTIVE SERVICE                     *
  ****************************************************************
  The calculation of the number of completed URs is flawed, when
  there are completed URs the count is incorrectly set to zero.
  This causes completed URs to queue up. If the subscription fails
  it may (re)start at a much earlier position in the log.
  

Problem conclusion

• Modified the logic for calculating the number of completed URs.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  UI75290

Modules/Macros

•    CHCDLSGP CHCSTGSP
  

Fix information

• Fixed component name

  INFO SRVR CDC Z

• Fixed component ID

  5655U7600

Applicable component levels

• RA21 PSY UI75290

     UP21/05/19 P F105 Ž

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.