Prometheus 2.1.0 is now out, following on from 2.0.0 last month with several fixes and improvements.
There's several improvements to make administration easier. The new Service Discovery status page makes it much easier to understand what metadata is available to relabelling. The rules status page now includes how long the last evaluation of each rule took. Handy for figuring out which might need some tweaking. The last evaluation duration of each rule group is also now available as the rule_group_last_duration_seconds metric. File SD has a new prometheus_sd_file_timestamp metric to help you detect if your files are stale.
The new improved storage engine has had a number of bugfixes, and can now handle indexes larger than 4GiB. The federation endpoint is faster, and the expression browser has optional query history. The v1 HTTP API now includes admin endpoints for snapshots, deletion, and forcing compaction.
The read_recent option added in 2.0.0 had the wrong default, it is now false in 2.1.0.
There’s also a number of bug fixes and other changes, see the release notes for more detail.
Wondering when and how to upgrade to Prometheus 2.x? Contact us.
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