topic Re: cdc in child Task in Qlik Replicate

cdc in child Task

suvbin — Sun, 01 Oct 2023 15:48:13 GMT

Hi Team,

Sometimes we see warnings comming in for child task

W: Changes are not being captured.

Can this warning can be ignored? Please briefly explain.

Thanks.

Re: cdc in child Task

Arun_Arasu — Sun, 01 Oct 2023 22:36:42 GMT

Hello @suvbin ,

Thanks for reaching out to Qlik community

In practical terms, this message suggests that for a brief period, the task did not detect any new changes in the logstream staging task. The most likely explanation for this occurrence is that no new events or data updates were generated during that specific timeframe for this particular task.

It is advisable to examine the staging task in the console. By doing so, you can pinpoint the most recent time at which events were received, especially for tables associated with the child task that triggered these warnings.

This information provides valuable insights into the task's behavior and ensures you are alerted to any prolonged disruptions in data capture.

Regards,
Arun

Re: cdc in child Task

SachinB — Mon, 02 Oct 2023 01:28:33 GMT

Hello @Subin ,

Thank you for reaching out to the Qlik community.

The warning changes are not being captured may be caused by 2 things:

Reason 1

Valid scenario, where parent/log stream tasks actually did not receive any data from the source, for example, if the changes currently happening on the source are not related to the tables in the task. You can confirm this by verifying that there is no data discrepancy between source and target.

Reason 2

Error scenario, where parent/log stream task encountered an issue and parent/log stream task continues to run without throwing an error. Check the staging task if there is an error during the same time frame when you received the warning on the replication task. For example, the staging task has stopped writing data to the log stream files for some reason.

Link : Qlik Replicate reports changes are not being captu... - Qlik Community - 1901483

Regards,

Sachin B