Hi team, I have a question related to

retention periods

. Right now the retention period is changed via the signoz frontend UI, is this retention period managed by signoz or clickhouse? I use an external clickhouse and I wonder if I redeploy my external clickhouse via clickhouse-operator, will the retention period stays or I need reset the retention periods?

When you change retention from the UI the change is sent to clickhouse. If you change your clickhouse server you will have to reapply the rentention settings

What exactly change did the UI perform? Can I just set my server the corresponding changes directly?

So the UI sends a query to clickhouse to update the TTL, you can check the current schema of the tables and update the TTL in the new by writing the sql query.