A blog on monitoring, scale and operational Sanity
December 14, 2020
Which of by/without and on/ignoring should you use?
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.
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