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by kjuulh 6 days ago
Love clickhouse it is just super performant. I've had to tweak a few queries for performance here and there but it has been more than stellar. I'd initially set up a real time pipeline ingest for us to handle our larger incremental ingests when i started (used redshift in the past, very expensive and quite slow in comparison), it has been unnecessary so far, as clickhouse has just been able to chew through tons of data and large transformations without breaking a sweat.

Only issue i had was that the default configuration had some quite heavy handed tracing turned on which tanked performance on the relatively little machine we had for it, it has since been scaled up and is the core of our data stack.

I can't recommend clickhouse enough. If you were truly large I'd probably choose something else, but as long as we're staying on a few nodes it is manageable complexity and we enjoy using it.

1 comments

What "heavy handed tracing" was turned on by default?
Cant quite remember, sadly, i followed a post about it. Might have been this one https://kb.altinity.com/altinity-kb-setup-and-maintenance/al....

It drastically reduced our cpu usage and disk as well. At this point it was on a small t3 on aws

Probably trace_log (we had a similar experience), but you'll only notice with limited storage space, and a regular keen eye on how your database fills up.