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2.33.0 / 2022-01-29
[CHANGE] PromQL: Promote negative offset and @ modifer to stable features.
[CHANGE] Web: Promote remote-write-receiver to stable.
[FEATURE] Config: Add stripPort template function.
[FEATURE] Promtool: Add cardinality analysis to check metrics, enabled by flag --extended.
[FEATURE] SD: Enable target discovery in own K8s namespace.
[FEATURE] SD: Add provider ID label in K8s SD.
[FEATURE] Web: Add limit field to the rules API.
[ENHANCEMENT] Remote-write: Avoid allocations by buffering concrete structs instead of interfaces.
[ENHANCEMENT] Remote-write: Log time series details for out-of-order samples in remote write receiver.
[ENHANCEMENT] Remote-write: Shard up more when backlogged.
[ENHANCEMENT] TSDB: Use simpler map key to improve exemplar ingest performance.
[ENHANCEMENT] TSDB: Avoid allocations when popping from the intersected postings heap.
[ENHANCEMENT] TSDB: Make chunk writing non-blocking, avoiding latency spikes in remote-write.
[ENHANCEMENT] TSDB: Improve label matching performance.
[ENHANCEMENT] UI: Optimize the service discovery page and add a search bar.
[ENHANCEMENT] UI: Optimize the target page and add a search bar.
+ bugfixes
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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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