# Reddit CDC with Debezium

**URL:** <https://forum.confluent.io/t/reddit-cdc-with-debezium/3259>\
**Category:** Architecture and Design\
**Created:** [1 November 2021 19:13 UTC](https://forum.confluent.io/t/reddit-cdc-with-debezium/3259 "2021-11-01T19:13:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![danicafine](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/danicafine/32/2995_2.png) [@danicafine](https://forum.confluent.io/u/danicafine)\
**Post date:** [1 November 2021 19:13 UTC](https://forum.confluent.io/t/reddit-cdc-with-debezium/3259/1 "2021-11-01T19:13:52Z")

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A quick but interesting read from the Reddit Tech Blog on their use of a Kafka Connect Debezium connector to help them snapshot their data more efficiently. Take a look to see their reasoning for moving to this architecture as well as some pros and cons of their current set up!

> **[r/RedditEng - Change Data Capture with Debezium](https://www.reddit.com/r/RedditEng/comments/qkfx7a/change_data_capture_with_debezium/)**
>
> 36 votes and 10 comments so far on Reddit

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**Author:** ![nbuesing](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/nbuesing/32/1433_2.png) [@nbuesing](https://forum.confluent.io/u/nbuesing)\
**Post date:** [1 November 2021 19:40 UTC](https://forum.confluent.io/t/reddit-cdc-with-debezium/3259/2 "2021-11-01T19:40:13Z")

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> One disadvantage to using Debezium is that initial snapshotting could be too slow if the volume of your data is large because Debezium builds the snapshot sequentially with no concurrency.

It would be interesting to know what settings within postgres snapshots could be possible and if that woudl help to solve the issues. I find it very confusing trying to keep track of the differences between databases and how they implement logging.

[https://debezium.io/documentation/reference/connectors/postgresql.html#postgresql-snapshots](https://debezium.io/documentation/reference/connectors/postgresql.html#postgresql-snapshots)

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**Author:** ![mitchell-h](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/mitchell-h/32/1129_2.png) [@mitchell-h](https://forum.confluent.io/u/mitchell-h)\
**Post date:** [2 November 2021 15:41 UTC](https://forum.confluent.io/t/reddit-cdc-with-debezium/3259/3 "2021-11-02T15:41:21Z")

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Gunnar Morling posted on twitter about this, [https://twitter.com/gunnarmorling/status/1455549791254073352?s=20](https://twitter.com/gunnarmorling/status/1455549791254073352?s=20) . Getting concurrency for snapshots is on the roadmap.