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2.24.1
[ENHANCEMENT] Cache basic authentication results to significantly improve performance of HTTP endpoints (via an update of prometheus/exporter-toolkit).
[BUGFIX] Prevent user enumeration by timing requests sent to authenticated HTTP endpoints (via an update of prometheus/exporter-toolkit).
2.24.0
[FEATURE] Add TLS and basic authentication to HTTP endpoints.
[FEATURE] promtool: Add check web-config subcommand to check web config files.
[FEATURE] promtool: Add tsdb create-blocks-from openmetrics subcommand to backfill metrics data from an OpenMetrics file.
[ENHANCEMENT] HTTP API: Fast-fail queries with only empty matchers.
[ENHANCEMENT] HTTP API: Support matchers for labels API.
[ENHANCEMENT] promtool: Improve checking of URLs passed on the command line.
[ENHANCEMENT] SD: Expose IPv6 as a label in EC2 SD.
[ENHANCEMENT] SD: Reuse EC2 client, reducing frequency of requesting credentials.
[ENHANCEMENT] TSDB: Add logging when compaction takes more than the block time range.
[ENHANCEMENT] TSDB: Avoid unnecessary GC runs after compaction.
[BUGFIX] HTTP API: Avoid double-closing of channel when quitting multiple times via HTTP.
[BUGFIX] SD: Ignore CNAME records in DNS SD to avoid spurious Invalid SRV record warnings.
[BUGFIX] SD: Avoid config error triggered by valid label selectors in Kubernetes SD.
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2.18.1:
[BUGFIX] TSDB: Fixed snapshot API.
2.18.0:
[CHANGE] Federation: Only use local TSDB for federation (ignore remote read).
[CHANGE] Rules: rule_evaluations_total and rule_evaluation_failures_total have a rule_group label now.
[FEATURE] Tracing: Added experimental Jaeger support
[ENHANCEMENT] TSDB: Significantly reduce WAL size kept around after a block cut.
[ENHANCEMENT] Discovery: Add architecture meta label for EC2.
[BUGFIX] UI: Fixed wrong MinTime reported by /status.
[BUGFIX] React UI: Fixed multiselect legend on OSX.
[BUGFIX] Remote Write: Fixed blocked resharding edge case.
[BUGFIX] Remote Write: Fixed remote write not updating on relabel configs change.
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2.15.2:
[BUGFIX] TSDB: Fixed support for TSDB blocks built with Prometheus before 2.1.0.
[BUGFIX] TSDB: Fixed block compaction issues on Windows.
2.15.1:
[BUGFIX] Fixed race on concurrent queries against the same data.
2.15.0:
[CHANGE] Discovery: Removed prometheus_sd_kubernetes_cache_* metrics. Additionally prometheus_sd_kubernetes_workqueue_latency_seconds and prometheus_sd_kubernetes_workqueue_work_duration_seconds metrics now show correct values in seconds.
[CHANGE] Remote write: Changed query label on prometheus_remote_storage_* metrics to remote_name and url.
[FEATURE] API: Added new endpoint for exposing per metric metadata /metadata.
[ENHANCEMENT] TSDB: Significantly reduced memory footprint of loaded TSDB blocks.
[ENHANCEMENT] TSDB: Significantly optimized what we buffer during compaction which should result in lower memory footprint during compaction.
[ENHANCEMENT] TSDB: Improve replay latency.
[ENHANCEMENT] TSDB: WAL size is now used for size based retention calculation.
[ENHANCEMENT] Remote read: Added query grouping and range hints to the remote read request
[ENHANCEMENT] Remote write: Added prometheus_remote_storage_sent_bytes_total counter per queue.
[ENHANCEMENT] promql: Improved PromQL parser performance.
[ENHANCEMENT] React UI: Implemented missing pages like /targets
[ENHANCEMENT] promql: Prometheus now accepts spaces between time range and square bracket. e.g [ 5m]
[BUGFIX] Config: Fixed alertmanager configuration to not miss targets when configurations are similar.
[BUGFIX] Remote write: Value of prometheus_remote_storage_shards_desired gauge shows raw value of desired shards and it's updated correctly.
[BUGFIX] Rules: Prometheus now fails the evaluation of rules and alerts where metric results collide with labels specified in labels field.
[BUGFIX] API: Targets Metadata API /targets/metadata now accepts empty match_targets parameter as in the spec.
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2.9.2:
[BUGFIX] Make sure subquery range is taken into account for selection
[BUGFIX] Exhaust every request body before closing it
[BUGFIX] Cmd/promtool: return errors from rule evaluations
[BUGFIX] Remote Storage: string interner should not panic in release
[BUGFIX] Fix memory allocation regression in mergedPostings.
2.9.1:
[BUGFIX] Discovery/kubernetes: fix missing label sanitization
[BUGFIX] Remote_write: Prevent reshard concurrent with calling stop
2.9.0:
This releases uses Go 1.12, which includes a change in how memory is released
to Linux. This will cause RSS to be reported as higher, however this is harmless
and the memory is available to the kernel when it needs it.
[CHANGE/ENHANCEMENT] Update Consul to support catalog.ServiceMultipleTags.
[FEATURE] Add honor_timestamps scrape option.
[ENHANCEMENT] Discovery/kubernetes: add present labels for labels/annotations.
[ENHANCEMENT] OpenStack SD: Add ProjectID and UserID meta labels.
[ENHANCEMENT] Add GODEBUG and retention to the runtime page.
[ENHANCEMENT] Add support for POSTing to /series endpoint.
[ENHANCEMENT] Support PUT methods for Lifecycle and Admin APIs.
[ENHANCEMENT] Scrape: Add global jitter for HA server.
[ENHANCEMENT] Check for cancellation on every step of a range evaluation.
[ENHANCEMENT] String interning for labels & values in the remote_write path.
[ENHANCEMENT] Don't lose the scrape cache on a failed scrape.
[ENHANCEMENT] Reload cert files from disk automatically.
[ENHANCEMENT] Use fixed length millisecond timestamp format for logs.
[ENHANCEMENT] Performance improvements for postings.
[BUGFIX] Remote Write: fix checkpoint reading.
[BUGFIX] Check if label value is valid when unmarshaling external labels from YAML.
[BUGFIX] Promparse: sort all labels when parsing.
[BUGFIX] Reload rules: copy state on both name and labels.
[BUGFIX] Exponentation operator to drop metric name in result of operation.
[BUGFIX] Config: resolve more file paths.
[BUGFIX] Promtool: resolve relative paths in alert test files.
[BUGFIX] Set TLSHandshakeTimeout in HTTP transport.
[BUGFIX] Use fsync to be more resilient to machine crashes.
[BUGFIX] Keep series that are still in WAL in checkpoints.
[BUGFIX] Fix output sample values for scalar-to-vector comparison operations.
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The Prometheus monitoring system and time series database.
Prometheus, a Cloud Native Computing Foundation project, is a systems and
service monitoring system. It collects metrics from configured targets at
given intervals, evaluates rule expressions, displays the results, and
can trigger alerts if some condition is observed to be true.
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