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Latest Release
372 days ago

Changelog History
Page 5

  • v2.27.0 Changes

    May 12, 2021
    • [CHANGE] Remote write: Metric prometheus_remote_storage_samples_bytes_total renamed to prometheus_remote_storage_bytes_total. #8296
    • [FEATURE] Promtool: Retroactive rule evaluation functionality. #7675
    • ๐Ÿ”ง [FEATURE] Configuration: Environment variable expansion for external labels. Behind --enable-feature=expand-external-labels flag. #8649
    • [FEATURE] TSDB: Add a flag(--storage.tsdb.max-block-chunk-segment-size) to control the max chunks file size of the blocks for small Prometheus instances. #8478
    • ๐Ÿ’ป [FEATURE] UI: Add a dark theme. #8604
    • [FEATURE] AWS Lightsail Discovery: Add AWS Lightsail Discovery. #8693
    • ๐Ÿณ [FEATURE] Docker Discovery: Add Docker Service Discovery. #8629
    • [FEATURE] OAuth: Allow OAuth 2.0 to be used anywhere an HTTP client is used. #8761
    • 0๏ธโƒฃ [FEATURE] Remote Write: Send exemplars via remote write. Experimental and disabled by default. #8296
    • [ENHANCEMENT] Digital Ocean Discovery: Add __meta_digitalocean_vpc label. #8642
    • [ENHANCEMENT] Scaleway Discovery: Read Scaleway secret from a file. #8643
    • ๐Ÿ”ง [ENHANCEMENT] Scrape: Add configurable limits for label size and count. #8777
    • ๐Ÿ’ป [ENHANCEMENT] UI: Add 16w and 26w time range steps. #8656
    • ๐Ÿ“œ [ENHANCEMENT] Templating: Enable parsing strings in humanize functions. #8682
    • ๐Ÿ›  [BUGFIX] UI: Provide errors instead of blank page on TSDB Status Page. #8654 #8659
    • ๐Ÿ›  [BUGFIX] TSDB: Do not panic when writing very large records to the WAL. #8790
    • ๐Ÿ›  [BUGFIX] TSDB: Avoid panic when mmaped memory is referenced after the file is closed. #8723
    • ๐Ÿ›  [BUGFIX] Scaleway Discovery: Fix nil pointer dereference. #8737
    • ๐Ÿ›  [BUGFIX] Consul Discovery: Restart no longer required after config update with no targets. #8766
  • v2.26.0 Changes

    March 31, 2021

    ๐Ÿš€ Prometheus is now built and supporting Go 1.16 (#8544). This reverts the memory release pattern added in Go 1.12. This makes common RSS usage metrics showing more accurate number for actual memory used by Prometheus. You can read more details here.

    ๐Ÿš€ Note that from this release Prometheus is using Alertmanager v2 by default.

    • 0๏ธโƒฃ [CHANGE] Alerting: Using Alertmanager v2 API by default. #8626
    • ๐Ÿ–จ [CHANGE] Prometheus/Promtool: As agreed on dev summit, binaries are now printing help and usage to stdout instead of stderr. #8542
    • ๐Ÿ‘ [FEATURE] Remote: Add support for AWS SigV4 auth method for remote_write. #8509
    • [FEATURE] Scaleway Discovery: Add Scaleway Service Discovery. #8555
    • [FEATURE] PromQL: Allow negative offsets. Behind --enable-feature=promql-negative-offset flag. #8487
    • [FEATURE] experimental Exemplars: Add in-memory storage for exemplars. Behind --enable-feature=exemplar-storage flag. #6635
    • ๐Ÿ‘• [FEATURE] UI: Add advanced auto-completion, syntax highlighting and linting to graph page query input. #8634
    • [ENHANCEMENT] Digital Ocean Discovery: Add __meta_digitalocean_image label. #8497
    • [ENHANCEMENT] PromQL: Add last_over_time, sgn, clamp functions. #8457
    • 0๏ธโƒฃ [ENHANCEMENT] Scrape: Add support for specifying type of Authorization header credentials with Bearer by default. #8512
    • ๐Ÿ”ง [ENHANCEMENT] Scrape: Add follow_redirects option to scrape configuration. #8546
    • ๐Ÿ‘€ [ENHANCEMENT] Remote: Allow retries on HTTP 429 response code for remote_write. Disabled by default. See configuration docs for details. #8237 #8477
    • ๐Ÿ‘€ [ENHANCEMENT] Remote: Allow configuring custom headers for remote_read. See configuration docs for details. #8516
    • ๐Ÿ’ป [ENHANCEMENT] UI: Hitting Enter now triggers new query. #8581
    • ๐Ÿ’ป [ENHANCEMENT] UI: Better handling of long rule and names on the /rules and /targets pages. #8608 #8609
    • ๐Ÿ’ป [ENHANCEMENT] UI: Add collapse/expand all button on the /targets page. #8486
    • ๐Ÿ›  [BUGFIX] TSDB: Eager deletion of removable blocks on every compaction, saving disk peak space usage. #8007
    • ๐Ÿ›  [BUGFIX] PromQL: Fix parser support for special characters like็‚ฌ. #8517
    • ๐Ÿ›  [BUGFIX] Rules: Update rule health for append/commit fails. #8619
  • v2.25.2 Changes

    March 16, 2021
    • ๐Ÿ›  [BUGFIX] Fix the ingestion of scrapes when the wall clock changes, e.g. on suspend. #8601
  • v2.25.1 Changes

    March 14, 2021
    • ๐Ÿ›  [BUGFIX] Fix a crash in promtool when a subquery with default resolution is used. #8569
    • ๐Ÿ›  [BUGFIX] Fix a bug that could return duplicate datapoints in queries. #8591
    • ๐Ÿ›  [BUGFIX] Fix crashes with arm64 when compiled with go1.16. #8593
  • v2.25.0 Changes

    February 17, 2021

    ๐Ÿš€ This release includes a new --enable-feature= flag that enables ๐Ÿšš experimental features. Such features might be changed or removed in the future.

    ๐Ÿš€ In the next minor release (2.26), Prometheus will use the Alertmanager API v2. It will be done by defaulting alertmanager_config.api_version to v2. ๐Ÿš€ Alertmanager API v2 was released in Alertmanager v0.16.0 (released in January 2019).

    • [FEATURE] experimental API: Accept remote_write requests. Behind the --enable-feature=remote-write-receiver flag. #8424
    • [FEATURE] experimental PromQL: Add '@ ' modifier. Behind the --enable-feature=promql-at-modifier flag. #8121 #8436 #8425
    • โœ… [ENHANCEMENT] Add optional name property to testgroup for better test failure output. #8440
    • โš  [ENHANCEMENT] Add warnings into React Panel on the Graph page. #8427
    • [ENHANCEMENT] TSDB: Increase the number of buckets for the compaction duration metric. #8342
    • [ENHANCEMENT] Remote: Allow passing along custom remote_write HTTP headers. #8416
    • ๐Ÿ”ง [ENHANCEMENT] Mixins: Scope grafana configuration. #8332
    • ๐Ÿ“‡ [ENHANCEMENT] Kubernetes SD: Add endpoint labels metadata. #8273
    • ๐Ÿ’ป [ENHANCEMENT] UI: Expose total number of label pairs in head in TSDB stats page. #8343
    • [ENHANCEMENT] TSDB: Reload blocks every minute, to detect new blocks and enforce retention more often. #8343
    • ๐Ÿ›  [BUGFIX] API: Fix global URL when external address has no port. #8359
    • ๐Ÿ›  [BUGFIX] Backfill: Fix error message handling. #8432
    • ๐Ÿ›  [BUGFIX] Backfill: Fix "add sample: out of bounds" error when series span an entire block. #8476
    • ๐Ÿ›  [BUGFIX] Deprecate unused flag --alertmanager.timeout. #8407
    • ๐Ÿ›  [BUGFIX] Mixins: Support remote-write metrics renamed in v2.23 in alerts. #8423
    • ๐Ÿ›  [BUGFIX] Remote: Fix garbage collection of dropped series in remote write. #8387
    • ๐Ÿ›  [BUGFIX] Remote: Log recoverable remote write errors as warnings. #8412
    • ๐Ÿ›  [BUGFIX] TSDB: Remove pre-2.21 temporary blocks on start. #8353.
    • ๐Ÿ›  [BUGFIX] UI: Fix duplicated keys on /targets page. #8456
    • ๐Ÿ›  [BUGFIX] UI: Fix label name leak into class name. #8459
  • v2.24.1 Changes

    January 20, 2021
    • ๐ŸŽ [ENHANCEMENT] Cache basic authentication results to significantly improve performance of HTTP endpoints (via an update of prometheus/exporter-toolkit).
    • ๐Ÿ›  [BUGFIX] Prevent user enumeration by timing requests sent to authenticated HTTP endpoints (via an update of prometheus/exporter-toolkit).
  • v2.24.0 Changes

    January 06, 2021
    • [FEATURE] Add TLS and basic authentication to HTTP endpoints. #8316
    • ๐ŸŒ [FEATURE] promtool: Add check web-config subcommand to check web config files. #8319
    • [FEATURE] promtool: Add tsdb create-blocks-from openmetrics subcommand to backfill metrics data from an OpenMetrics file. #8084
    • [ENHANCEMENT] HTTP API: Fast-fail queries with only empty matchers. #8288
    • ๐Ÿ‘ [ENHANCEMENT] HTTP API: Support matchers for labels API. #8301
    • ๐Ÿ’ป [ENHANCEMENT] promtool: Improve checking of URLs passed on the command line. #7956
    • [ENHANCEMENT] SD: Expose IPv6 as a label in EC2 SD. #7086
    • [ENHANCEMENT] SD: Reuse EC2 client, reducing frequency of requesting credentials. #8311
    • ๐ŸŒฒ [ENHANCEMENT] TSDB: Add logging when compaction takes more than the block time range. #8151
    • [ENHANCEMENT] TSDB: Avoid unnecessary GC runs after compaction. #8276
    • ๐Ÿ›  [BUGFIX] HTTP API: Avoid double-closing of channel when quitting multiple times via HTTP. #8242
    • ๐Ÿ›  [BUGFIX] SD: Ignore CNAME records in DNS SD to avoid spurious Invalid SRV record warnings. #8216
    • ๐Ÿ›  [BUGFIX] SD: Avoid config error triggered by valid label selectors in Kubernetes SD. #8285
  • v2.23.0 Changes

    November 26, 2020
    • 0๏ธโƒฃ [CHANGE] UI: Make the React UI default. #8142
    • ๐Ÿšš [CHANGE] Remote write: The following metrics were removed/renamed in remote write. #6815
      • prometheus_remote_storage_succeeded_samples_total was removed and prometheus_remote_storage_samples_total was introduced for all the samples attempted to send.
      • prometheus_remote_storage_sent_bytes_total was removed and replaced with prometheus_remote_storage_samples_bytes_total and prometheus_remote_storage_metadata_bytes_total.
      • prometheus_remote_storage_failed_samples_total -> prometheus_remote_storage_samples_failed_total .
      • prometheus_remote_storage_retried_samples_total -> prometheus_remote_storage_samples_retried_total.
      • prometheus_remote_storage_dropped_samples_total -> prometheus_remote_storage_samples_dropped_total.
      • prometheus_remote_storage_pending_samples -> prometheus_remote_storage_samples_pending.
    • [CHANGE] Remote: Do not collect non-initialized timestamp metrics. #8060
    • [FEATURE] [EXPERIMENTAL] Remote write: Allow metric metadata to be propagated via remote write. The following new metrics were introduced: prometheus_remote_storage_metadata_total, prometheus_remote_storage_metadata_failed_total, prometheus_remote_storage_metadata_retried_total, prometheus_remote_storage_metadata_bytes_total. #6815
    • [ENHANCEMENT] Remote write: Added a metric prometheus_remote_storage_max_samples_per_send for remote write. #8102
    • [ENHANCEMENT] TSDB: Make the snapshot directory name always the same length. #8138
    • [ENHANCEMENT] TSDB: Create a checkpoint only once at the end of all head compactions. #8067
    • [ENHANCEMENT] TSDB: Avoid Series API from hitting the chunks. #8050
    • [ENHANCEMENT] TSDB: Cache label name and last value when adding series during compactions making compactions faster. #8192
    • ๐ŸŽ [ENHANCEMENT] PromQL: Improved performance of Hash method making queries a bit faster. #8025
    • ๐Ÿ–จ [ENHANCEMENT] promtool: tsdb list now prints block sizes. #7993
    • โœ… [ENHANCEMENT] promtool: Calculate mint and maxt per test avoiding unnecessary calculations. #8096
    • ๐Ÿณ [ENHANCEMENT] SD: Add filtering of services to Docker Swarm SD. #8074
    • ๐Ÿ›  [BUGFIX] React UI: Fix button display when there are no panels. #8155
    • ๐Ÿ›  [BUGFIX] PromQL: Fix timestamp() method for vector selector inside parenthesis. #8164
    • ๐Ÿ›  [BUGFIX] PromQL: Don't include rendered expression on PromQL parse errors. #8177
    • ๐Ÿ›  [BUGFIX] web: Fix panic with double close() of channel on calling /-/quit/. #8166
    • ๐Ÿ›  [BUGFIX] TSDB: Fixed WAL corruption on partial writes within a page causing invalid checksum error on WAL replay. #8125
    • [BUGFIX] Update config metrics prometheus_config_last_reload_successful and prometheus_config_last_reload_success_timestamp_seconds right after initial validation before starting TSDB.
    • ๐Ÿ›  [BUGFIX] promtool: Correctly detect duplicate label names in exposition.
  • v2.23.0-rc.0 Changes

    November 23, 2020
    • 0๏ธโƒฃ [CHANGE] UI: Make the React UI default. #8142
    • ๐Ÿšš [CHANGE] Remote write: The following metrics were removed/renamed in remote write. #6815
      • prometheus_remote_storage_succeeded_samples_total was removed and prometheus_remote_storage_samples_total was introduced for all the samples attempted to send.
      • prometheus_remote_storage_sent_bytes_total was removed and replaced with prometheus_remote_storage_samples_bytes_total and prometheus_remote_storage_metadata_bytes_total.
      • prometheus_remote_storage_failed_samples_total -> prometheus_remote_storage_samples_failed_total .
      • prometheus_remote_storage_retried_samples_total -> prometheus_remote_storage_samples_retried_total.
      • prometheus_remote_storage_dropped_samples_total -> prometheus_remote_storage_samples_dropped_total.
      • prometheus_remote_storage_pending_samples -> prometheus_remote_storage_samples_pending.
    • [CHANGE] Remote: Do not collect non-initialized timestamp metrics. #8060
    • [FEATURE] [EXPERIMENTAL] Remote write: Allow metric metadata to be propagated via remote write. The following new metrics were introduced: prometheus_remote_storage_metadata_total, prometheus_remote_storage_metadata_failed_total, prometheus_remote_storage_metadata_retried_total, prometheus_remote_storage_metadata_bytes_total. #6815
    • [ENHANCEMENT] Remote write: Added a metric prometheus_remote_storage_max_samples_per_send for remote write. #8102
    • [ENHANCEMENT] TSDB: Make the snapshot directory name always the same length. #8138
    • [ENHANCEMENT] TSDB: Create a checkpoint only once at the end of all head compactions. #8067
    • [ENHANCEMENT] TSDB: Avoid Series API from hitting the chunks. #8050
    • [ENHANCEMENT] TSDB: Cache label name and last value when adding series during compactions making compactions faster. #8192
    • ๐ŸŽ [ENHANCEMENT] PromQL: Improved performance of Hash method making queries a bit faster. #8025
    • ๐Ÿ–จ [ENHANCEMENT] promtool: tsdb list now prints block sizes. #7993
    • โœ… [ENHANCEMENT] promtool: Calculate mint and maxt per test avoiding unnecessary calculations. #8096
    • ๐Ÿณ [ENHANCEMENT] SD: Add filtering of services to Docker Swarm SD. #8074
    • ๐Ÿ›  [BUGFIX] React UI: Fix button display when there are no panels. #8155
    • ๐Ÿ›  [BUGFIX] PromQL: Fix timestamp() method for vector selector inside parenthesis. #8164
    • ๐Ÿ›  [BUGFIX] PromQL: Don't include rendered expression on PromQL parse errors. #8177
    • ๐Ÿ›  [BUGFIX] web: Fix panic with double close() of channel on calling /-/quit/. #8166
    • ๐Ÿ›  [BUGFIX] TSDB: Fixed WAL corruption on partial writes within a page causing invalid checksum error on WAL replay. #8125
    • [BUGFIX] Update config metrics prometheus_config_last_reload_successful and prometheus_config_last_reload_success_timestamp_seconds right after initial validation before starting TSDB.
    • ๐Ÿ›  [BUGFIX] promtool: Correctly detect duplicate label names in exposition.
  • v2.22.2 Changes

    November 16, 2020
    • ๐Ÿ›  [BUGFIX] Fix race condition in syncing/stopping/reloading scrapers. #8176