Bug report

What Debezium connector do you use and what version?

MySQL source connector with debezium/server 3.3.0-beta1

What is the connector configuration?

Mostly by default, except max.queue.size and max.batch.size.

What is the captured database version and mode of deployment?

MySQL 8, Azure flexible server

What behavior do you expect?

High but bounded heap usage.

What behavior do you see?

Unbounded heap usage. The server crashes with OOM when the table snapshot tasks are created.

Do you see the same behaviour using the latest released Debezium version?

Yes

How to reproduce the issue using our tutorial deployment?

You need a big multi-tenant database. In my case, 250 tenants/schemas with 400 tables each.