7687a9b4b8
2.20.0 / 2020-07-22 This release changes WAL compression from opt-in to default. WAL compression will prevent a downgrade to v2.10 or earlier without deleting the WAL. Disable WAL compression explicitly by setting the command line flag --no-storage.tsdb.wal-compression if you require downgrading to v2.10 or earlier. [CHANGE] promtool: Changed rule numbering from 0-based to 1-based when reporting rule errors. [CHANGE] Remote read: Added prometheus_remote_storage_read_queries_total counter and prometheus_remote_storage_read_request_duration_seconds histogram, removed prometheus_remote_storage_remote_read_queries_total counter. [CHANGE] Remote write: Added buckets for longer durations to prometheus_remote_storage_sent_batch_duration_seconds histogram. [CHANGE] TSDB: WAL compression is enabled by default. [FEATURE] PromQL: Added group() aggregator. [FEATURE] SD: Added Docker Swarm SD. [FEATURE] SD: Added DigitalOcean SD. [FEATURE] SD: Added Openstack config option to query alternative endpoints. [ENHANCEMENT] Configuration: Exit early on invalid config file and signal it with exit code 2. [ENHANCEMENT] PromQL: without is now a valid metric identifier. [ENHANCEMENT] PromQL: Optimized regex label matching for literals within the pattern or as prefix/suffix. [ENHANCEMENT] promtool: Added time range parameters for labels API in promtool. [ENHANCEMENT] Remote write: Include samples waiting in channel in pending samples metric. Log number of dropped samples on hard shutdown. [ENHANCEMENT] Scrape: Ingest synthetic scrape report metrics atomically with the corresponding scraped metrics. [ENHANCEMENT] SD: Reduce timeouts for Openstack SD. [ENHANCEMENT] SD: Use 10m timeout for Consul watches. [ENHANCEMENT] SD: Added AMI meta label for EC2 SD. [ENHANCEMENT] TSDB: Increment WAL corruption metric also on WAL corruption during checkpointing. [ENHANCEMENT] TSDB: Improved query performance for high-cardinality labels. [ENHANCEMENT] UI: Display dates as well as timestamps in status page. [ENHANCEMENT] UI: Improved scrolling when following hash-fragment links. [ENHANCEMENT] UI: React UI renders numbers in alerts in a more human-readable way. [BUGFIX] API: Fixed error status code in the query API. [BUGFIX] PromQL: Fixed avg and avg_over_time for NaN, Inf, and float64 overflows. [BUGFIX] PromQL: Fixed off-by-one error in histogram_quantile. [BUGFIX] promtool: Support extended durations in rules unit tests. [BUGFIX] Scrape: Fix undercounting for scrape_samples_post_metric_relabeling in case of errors. [BUGFIX] TSDB: Don't panic on WAL corruptions. [BUGFIX] TSDB: Avoid leaving behind empty files in chunks_head, causing startup failures. [BUGFIX] TSDB: Fixed race between compact (gc, populate) and head append causing unknown symbol error. [BUGFIX] TSDB: Fixed unknown symbol error during head compaction. [BUGFIX] TSDB: Fixed panic during TSDB metric registration. [BUGFIX] TSDB: Fixed --limit command line flag in tsdb tool |
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