Prometheus 2.28.0 new features

Prometheus  ​2.28.0​​ Now? (2021.06.21) Has been released , Last month's ​ ​2.27.0​​ After that, many repairs and improvements have been made .

This update focuses on UI 、 Service discovery and temporal database , There are few other updates .

about UI This update will be new experimental PromQL The editor is set as the default editor . This time, example display support is also added to the graphical interface . This time UI There is also an optimization point , I feel very friendly , When you restart Prometheus But the database is still loading data when it is not ready , Previously visited UI The page will report an error , This time there will be a startup page with a progress bar , In this way, we can know how long it will be better . This time UI Fixed one BUG, In experimental PromQL Editor , Fixed auto completion and parsing of special floating point values , And improve the collection of metadata .

For service discovery, we have added Linode Service discovery , Also added based on HTTP Service discovery of . about Kubernetes Service discovery of , It is now allowed to pass kubecconfig File configuration API Server visit , Added ingress Class name label The label is used for ingress Find out . about Consul   Service discovery , by Consul Enterprise Add namespace support , It also supports reading from files TOKEN.

For service discovery , Fixed when using multiple service discovery `prometheus_sd_discovered_targets` The calculation of metrics . Add the target creation failure counter `prometheus_target_sync_failed_total`, Improve the handling of target creation failure .

For time series database TSDB , Improved validation of sample tag set length . Add one `prometheus_tsdb_clean_start` indicators , Indicates the last run of TSDB Whether the lock file still exists at startup . When TSDB When merging blocks , If the result block contains more than 120 Samples , Then split .

about Promtool There is an improvement in the tool , This version starts to allow you to Import / Output silently when backfilling data .

Add a new... For the alarm rule ​.ExternalURL​​ Warning field template variable , contain Prometheus Server Of external URL.

Detailed release notes can be viewed  ​release notes​​ .

Reference link

• https://github.com/prometheus/prometheus/releases/tag/v2.28.0 ,By prombot of GitHub