Lessons learned operating petabyte-scale ClickHouse clusters: Part II

#1

Post by javisantana » Sun, Apr 20, 2025, 11:04 PM UTC

Lessons learned operating petabyte-scale ClickHouse clusters: Part II
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Re: Lessons learned operating petabyte-scale ClickHouse clusters: Part II

#2

Post by riku_iki » Thu, Apr 24, 2025, 2:02 AM UTC

interesting advice: monitor how often ClickHouse crashes with segfaults. Doesn't sound like production grade quality product.

Re: Lessons learned operating petabyte-scale ClickHouse clusters: Part II

#3

Post by javisantana » Thu, Apr 24, 2025, 6:51 AM UTC

riku_iki wrote: post #2

interesting advice: monitor how often ClickHouse crashes with segfaults. Doesn't sound like production grade quality product.

I don't think is going to happen often, but definitely happens. We see that more than anyone would do because we run a lot of different workload types, any possible combination of types/sql/engines...

Running postgres in my previous company we saw a few of them as well and I'd consider postgres a "production grade" system.