# Getting CDC to run in real time and window sizes

**URL:** <https://forum.scylladb.com/t/getting-cdc-to-run-in-real-time-and-window-sizes/5133>\
**Category:** ScyllaDB\
**Tags:** cdc, administration\
**Created:** [October 15, 2025, 3:58am UTC](https://forum.scylladb.com/t/getting-cdc-to-run-in-real-time-and-window-sizes/5133 "2025-10-15T03:58:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Guy](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.scylladb.com/guy/32/9_2.png) [@Guy](https://forum.scylladb.com/u/Guy)\
**Post date:** [October 15, 2025, 3:58am UTC](https://forum.scylladb.com/t/getting-cdc-to-run-in-real-time-and-window-sizes/5133/1 "2025-10-15T03:58:02Z")

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> [@](#):
>
> **[Originally from the User Slack](https://scylladb-users.slack.com/)**
> 
> ![Kỳ_Trần](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/2X/f/f45582b44d093ab035eb42e8740be893a61c67c9.jpeg) **@Kỳ\_Trần:** Hello everyone,  
> I’m having an issue with ScyllaDB’s CDC — it’s not running in real time. It seems to be processing in batches about every 60 seconds. I tried to fix it to make it real time again, but I haven’t been able to. I’d really appreciate any help.
> 
> ![image](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/2X/0/0d8db9c33e9ec0fcdd494be9b2a9858ecc386e8e.png)
> 
> ![image (2)](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/2X/6/6203596f85d4efbfddff876397aa014d142f0c00.png)
> 
> ![image (1)](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/2X/f/f6f8c776d32e0c5a81cb6efb9419b20bb29705a6.png)
> 
> ![Felipe_Cardeneti_Mendes](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/1X/233a9d524fbc97e39f08633c16b3dd2575d1d1f4.jpeg) @Felipe\_Cardeneti\_Mendes\*\*:\*\* See window sizes [https://github.com/scylladb/scylla-cdc-source-connector/blob/master/README.md#advanced-configuration-parameters](https://github.com/scylladb/scylla-cdc-source-connector/blob/master/README.md#advanced-configuration-parameters)
> 
> ![Kỳ_Trần](https://us1.discourse-cdn.com/flex016/uploads/scylladb/original/2X/f/f45582b44d093ab035eb42e8740be893a61c67c9.jpeg) **@Kỳ\_Trần:** thank you verymuch