PH34515: CAPTURE SENDS CORRUPTED MESSAGE WHEN RESIZING MESSAGE BUFFER

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Capture sends corrupted message when replicating same source
  table to multiple targets in multiple send queues. Example
  table T1 going to table T2, T3 and T4 in SENDQ1 and T1 going to
  TGT2, TGT3 and TGT4 in SENDQ2.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: 1- All Capture users                         *
  *                 2- all users using zv1140                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: 1- Capture misses the updates to the    *
  *                      clone                                   *
  *                      2- Capture sends corrupted message      *
  *                      when replicating same source table to   *
  *                      multiple targets in multiple send       *
  *                      queues. Example table T1 going to       *
  *                      table T2, T3 and T4 in SENDQ1 and T1    *
  *                      going to TGT2, TGT3 and TGT4 in SENDQ2. *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  1- Currently Capture only passes the psid of the base table to
  IFI filter and Capture misses the updates to the clone.
  2- queue sub has a pointer to its current row message in mq
  buffer of sendqueue, the initial buffer size is 16KB. If the
  transaction message exceeds 16KB, capture resizes the mq
  buffer. However in this step, capture doesn't reset the pointer
  of queue sub.
  

Problem conclusion

• 1- For base table with a clone table, the user must specify
  IFI_FILTER_ADD_CLONE_PSID=Y (run time parm) in order to capture
  the changes for the clone. Otherwise, the updates will be
  missed. The default for IFI_FILTER_ADD_CLONE_PSID=N for now. It
  will change in the future.
  2- with this fix, capture resets message pointer of queue sub
  after the mq buffer is resized.
  ASNCLP was not updated.
  Function Level: 1140.103
  

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:

  UI74053 UI74054 UI74055 UI74056

Modules/Macros

•    ASNACMD  ASNADMSP ASNAPPLY ASNCAP   ASNCATM
  ASNCCMD  ASNMCMD  ASNMON   ASNQACMD ASNQAPP  ASNQCAP  ASNQCCMD
  ASNQDEP  ASNQEXRP ASNQMFMT ASNQXFMT ASNRBASE ASNTDIFF ASNTDSP
  ASNTRC   ASN2BASE
  

Fix information

• Fixed component name

  WS REPLICATION

• Fixed component ID

  5655L8800

Applicable component levels

• RB33 PSY UI74053

     UP21/03/02 P F103

• RB34 PSY UI74054

     UP21/03/03 P F103

• RB35 PSY UI74055

     UP21/03/02 P F103

• RB36 PSY UI74056

     UP21/03/02 P F103

Fix is available

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