IBM Data Platform Ideas Portal for Customers


This portal is to open public enhancement requests against products and services offered by the IBM Data Platform organization. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:


Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,


Post your ideas

Post ideas and requests to enhance a product or service. Take a look at ideas others have posted and upvote them if they matter to you,

  1. Post an idea

  2. Upvote ideas that matter most to you

  3. Get feedback from the IBM team to refine your idea


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

IBM Employees should enter Ideas at https://ideas.ibm.com



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Status Submitted
Workspace Data Replication: Change Data Capture
Created by Guest
Created on Mar 18, 2026

RELATED IDEAS

Db2 z/OS Log cache shouldn't be populated until first subscription is fully refresh'ed

In order to avoid excessive read of the Db2 logs which aren't relevant (and the induced CPU cost thereof) , the CDC log cache component(DLR) should only  be activated when the first subscription within a CDC Source Engine on DB2 z/OS has refreshed the first table in the subscription. 

Preferrably the log cache should also be flushed and turned of automatically when the last subscription within a CDC Source Engine started task is being deleted. 

We have seen excessive CPU usage due to this behavious a few times on different customers when different personel is handling the various components of the entire CDC solution, and as the first deployment of a CDC solution usually will suffer delays of some sort or another in various parts of the solution it is not always posible to ensure that the CDC Source Engine is started with COLD=DLR in order to clear the Log Cache imediately before the start of the first subscription .. 

Needed By Yesterday (Let's go already!)

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