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Yes this will show error over here, but it has been configured, it will work.

So there are some ways to avoid reaching this. ( the main culprit is that clickhouse requires resources and time to modify ttl) • Before changing the TTL, stop ingestion and change the TTL. ◦

select * from system.mutations where is_done=0;

run this command in clickhouse to see the progress ◦ unless this command is completed don’t allow new ingestion or • Clean the existing data and start fresh i.e clean installation. or • provide resources with no limits for clickhouse to complete the job.

@nitya-signoz TTL？

by TTL I meant changing the retention settings.

yes。I already reinstall it，😂