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by jaysh 6 days ago
Off the top of my head:

- substantially better performance on the same hardware, even moreso for larger range queries (multiple days)

- no new query language to learn

- significantly more expressive as you said

- agents for scraping logs use way less CPU (I used to use grafana-agent which used about 80%, vector uses sub 5%)

- very intuitive to manage TTLs - I can keep some logs for 10 years, and some for 1 week based on the event in the JSON

- more compact storage, I didn't check scientifically but CH storage is better compressed at least 4-5x for us

- no running into maximum stream limits - struggled with these even on Grafana Cloud and didn't realise we silently lost a lot of logs

Honestly: why wouldn't you. Loki always felt like a mistake to me. A brand new query language, really counter-intuitive configuration, large ramp-up time for complex queries, lots of arguing about labels/cardinality etc. It all goes away when you drop it. I think logging should not be exotic or behave in unexpected ways.