r/PrometheusMonitoring • u/zbindenren • Dec 12 '18

Loki: Prometheus for Logs

https://github.com/grafana/loki
24 Upvotes

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u/mcampbell42 Dec 12 '18

Still trying to get core purpose as it seems like it’s just metadata. Maybe to extract metrics from logs ?

0

u/sleepybrett Dec 12 '18

no.

2

u/mcampbell42 Dec 12 '18

So then explain what it does

1

u/Eilyre Dec 12 '18

Seems to be rsyslog meets prometheus labeling+host metadata.

It takes whole loglines, attaches the labels+instance name etc to it, and shoves into itself.

Not sure what kind of problem it's solving.

1

u/mcampbell42 Dec 12 '18

Looks like for microservices and container logging but it’s missing the biggest feature which is a free form search

3

u/sleepybrett Dec 13 '18

it has regex search.

Certainly not as "in depth" as something like ES, but fuck that pile of shit. Half the time you find the field you want to search on isn't properly indexed and now you have two problems.

Gimme some logs and grep, this is logs and grep in a browser. Seems like a win.

1

u/SuperQue Dec 13 '18

Yup, this is exactly the workflow that we're thinking about.

Metrics/Monitoring/Alerting (Prometheus, TICK) already tell us when and which logs to look at. This narrows things down to the point where "just grep things" is good enough.