A blog on monitoring, scale and operational Sanity
October 12, 2020
RE2 doesn't support lookahead, but that doesn't mean you can't do it in another way.
August 10, 2020
Prometheus 2.20 added a group aggregator. What is it for?
July 13, 2020
The node exporter exposes the current machine time.
March 23, 2020
You've seen metrics like prometheus_build_info, but why do they have a value of 1?
February 24, 2020
Have you ever found yourself having to keep on updating and tweaking certain regexes in PromQL?
February 3, 2020
NaN is just a number in Prometheus.
January 20, 2020
How do you convert summarizeinto PromQL?
December 30, 2019
Just because SQL isn't in the name doesn't mean that you can't do SQL-like joins with PromQL.
December 9, 2019
Subqueries were added to PromQL a while back, but there's more to this feature than it'd seem.
November 18, 2019
There's more to selecting a piece of software than headline numbers. Read more
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