Prometheus 2.29.0 new features

Prometheus  ​2.29.0​​ Has been released , Last month's [2.28.0] After that, many repairs and improvements have been made .

This time I feel that I have updated a lot . macOS Users need to pay attention to : Due to the upcoming Go 1.17 The change of , This is support macOS 10.12 Sierra The last Prometheus edition . Prometheus Of ​​--storage.tsdb.allow-overlapping-blocks​​ and ​​--storage.tsdb.retention.size​​ Of tag from experimental Turned into stable,

For service discovery , This time we added Kuma Service discovery of , in addition GCE Service discovery for has added One ​​__meta_gce_interface_ipv4_<name>​​ Of Metadata label,EC2 New service discovery for ​​__meta_ec2_availability_zone_id​​ Metadata label ,Azure Service discovery has added a ​​__meta_azure_machine_computer_name​​ Metadata label ,Hetzner Service discovery has added a ​​__meta_hetzner_hcloud_labelpresent_<labelname>​​ Metadata label .

PromQL Added ​​present_over_time​​ The functionality .

Prometheus Allow sample storage through file configuration , And make it reloadable . This update improves write-ahead-log Decoding performance . in addition Prometheus Improve by reducing the use of mutexes TSDB Additional performance for . Allow configuration ​​max_samples_per_send​​ Used to write metadata remotely .

about UI aspect , After this update, you can drag the mouse to select the time range , stay flags Add sorting and filtering functions to the page , In addition, optimization improves the rendering performance of alert pages . in addition Promtool The tool has also updated some functions this time , First, a new one is added ​​--enable-feature​​ Used to add some features . Secondly, it supports adding file_sd Document validation . In addition, it optimizes promtool tsdb Analyze the compression efficiency of the report . Allowed to pass through ​​--max-block-duration​​ Flag configuration maximum blocking duration

Next is a BUG Repair ,Prometheus When the total symbol Larger than 2^32 bytes Will cause compression failure , And skip compression and log . correct ​​target_limit​​ Reload 0 Value error .

Repair the head GC and pending reader Competitive conditions . Repair the OpenMetrics Timestamp processing in the parser . Fix when specifying multiple matchers ​​/federate​​ Possible duplicate indicators in the endpoint

Repair server configuration and authentication through client certificate authentication Detailed release notes can be viewed ​ ​release notes​​ .

Reference link

• https://github.com/prometheus/prometheus/releases/tag/v2.29.0 ,By prombot of GitHub