Prometheus 2.27.0 new features

Prometheus ​ ​2.27.0​​ After that, many repairs and improvements have been made .

This update is for Promtool Added traceability rule evaluation function . about Prometheus Add the environment variable extension of external label to the configuration of , Use ​​--enable-feature = expand-external-labels​​ A label will do .

For time series database TSDB This time, we added 1 New features and 2 individual BUG Repair . I added a new one Control parameter ​​--storage.tsdb.max-block-chunk-segment-size​​ To control the small Prometheus Block file of the instance chunk file Maximum file size . Two BUG The repairs are For writing large amounts of data to WAL Prevent the log from appearing ​​panic: snappy: decoded block is too large​​ . And use after the file is closed mmap Do not use memory

about UI aspect , Dark themes have been added to this version , There are two themes: white and black , And the following time can be set for automatic switching . There is another optimization , Page added 16w and 26w Time range steps . The other is in TSDB The status page of provides errors instead of blank pages . There are many changes in service discovery in this update , First, add AWS Lightsail Service discovery of , Secondly, it adds Docker Service Service discovery of . about Digital Ocean Added ​​__meta_digitalocean_vpc​​ Of label label . about Scaleway Service discovery optimizes reading from files Scaleway secret The way . about Consul Service discovery , There is no need to restart after the configuration update has no target .

about OAuth Allow in any use HTTP Where the client is used OAuth 2.0. Detailed release notes can be viewed ​ ​release notes​​ .

Reference link

• https://github.com/prometheus/prometheus/releases/tag/v2.27.0 ,By prombot of GitHub