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Status Not under consideration
Created by Guest
Created on Dec 20, 2019

Downgrade or remove Warning messages like "IBM InfoSphere Data Replication adjusted the source data image to fit into the target column "

All IDAA messages are presented in the z/OS system log as DSNX881I messages.  These messages have a Message ID & Severity.  Many also have an embedded CHCxxxxxx message id.

However, many messages get reported under Message ID 20, and these can be E, W, or I severities.

 

There is one message, which is a 20 W, that often gets produced in sets for multiple columns of a UNICODE table.  Example:

DSNX881I -D2UA 20 W 23591 (2019-11-09 12:59:17 UTC)
D2U1IDAA(192.168.250.8) Id: 9035 Subscription: ACCEL_DWA89D5I
Message: IBM InfoSphere Data Replication adjusted the source data image to fit into the target column MLCC_BRANCH_ID from table DWAD2U1DDF.TBBER_MLINK_CCAUTH-UID_012D0171-REPLICATION. The implicit transformations generated warnings. Please take corrective actions to ensure that no warnings are logged. The data in column MLCC_BRANCH_ID has been converted from source character set encoding :US-ASCII: to target character set encoding :UTF-8:. Originator:
com.datamirror.ts.target.publication.TargetImageBuilder

 

Points on this message:

  • The message says "Please take corrective actions to ensure that no warnings are logged."
  • IBM has advised us that we can ignore these messages (Case TS003000307)
  • IBM has not given us a corrective action to ensure the warnings are not logged.
  • The Message is a DSNX881I "W", just like Message ID 4 is "W" for Disk80PercentFull and Disk90PercentFull - and clearly for these Warnings we would want to take some action.
  • We have set up email alerts for all DSNX881I messages, and we could in theory adapt that process to filter these messages from being emailed.  However, this message lacks an embedded CHCxxxxxx message, and that makes filtering harder)

 

So, the Big Idea, actually suggested by an IBMer, is to downgrade these messages to an "I" severity.

 

Alternatively, I think it might be better to completely stop generating these messages.  (If there is no corrective action to be taken, and all the data is being replicated just fine, then why write the message?)

  • Admin
    Dennis Lukas Mayer
    Apr 8, 2020

    Integrated Synchronization, introduced with Db2 Analytics Accelerator V7.5, is the strategic feature to keep data current between Db2 for z/OS and the Accelerator. It is currently not planned to enhance the Change Data Capture component and related features within the Accelerator.