thanos-io/thanos v0.28.0-rc.0 on GitHub

What's Changed

Fixed

#5502 Receive: Handle exemplar storage errors as conflict error.
#5534 Query: Set struct return by query API alerts same as prometheus API.
#5554 Query/Receiver: Fix querying exemplars from multi-tenant receivers.
#5583 Query: Fix data race between Respond() and query/queryRange functions. Fixes #5410.

Added

#5440 HTTP metrics: export number of in-flight HTTP requests.
#5424 Receive: Export metrics regarding size of remote write requests.
#5420 Receive: Automatically remove stale tenants.
#5472 Receive: Add new tenant metrics to example dashboard.
#5475 Compact/Store: Added --block-files-concurrency allowing to configure number of go routines for downloading and uploading block files during compaction.
#5470 Receive: Expose TSDB stats as metrics for all tenants.
#5493 Compact: Added --compact.blocks-fetch-concurrency allowing to configure number of goroutines for downloading blocks during compactions.
#5480 Query: Expose endpoint info timeout as a hidden flag --endpoint.info-timeout.
#5527 Receive: Add per request limits for remote write. Added four new hidden flags --receive.write-request-limits.max-size-bytes, --receive.write-request-limits.max-series, --receive.write-request-limits.max-samples and --receive.write-request-limits.max-concurrency for limiting requests max body size, max amount of series, max amount of samples and max amount of concurrent requests.
#5520 Receive: Meta-monitoring based active series limiting (experimental). This mode is only available if Receiver is in Router or RouterIngestor mode, and config is provided. Added four new hidden flags receive.tenant-limits.max-head-series for the max active series for the tenant, receive.tenant-limits.meta-monitoring-url for the Meta-monitoring URL, receive.tenant-limits.meta-monitoring-query for specifying the PromQL query to execute and receive.tenant-limits.meta-monitoring-client for specifying HTTP client configs.
#5555 Query: Added --query.active-query-path flag, allowing the user to configure the directory to create an active query tracking file, queries.active, for different resolution.
#5566 Receive: Added experimental support to enable chunk write queue via --tsdb.write-queue-size flag.
#5575 Receive: Add support for gRPC compression with snappy.
#5508 Receive: Validate labels in write requests.
#5439 Mixin: Add Alert ThanosQueryOverload to Mixin.
#5342 Query/Query Frontend: Implement vertical sharding at query frontend for range queries.
#5561 Query Frontend: Support instant query vertical sharding.
#5453 Compact: Skip erroneous empty non *AggrChunk chunks during 1h downsampling of 5m resolution blocks.- #5607 Query: Support custom lookback delta from request in query api.
#5607 Query: Support custom lookback delta from request in query api.

Changed

#5447 Promclient: Ignore 405 status codes for Prometheus buildVersion requests.
#5451 Azure: Reduce memory usage by not buffering file downloads entirely in memory.
#5484 Update Prometheus deps to v2.36.2.
#5511 Update Prometheus deps to v2.37.0.
#5588 Store: Improve index header reading performance by sorting values first.
#5596 Store: Filter external labels from matchers on LabelValues/LabelNames to improve performance.

New Contributors

@nikitapecasa made their first contribution in #5448
@shenxn made their first contribution in #5455
@SrushtiSapkale made their first contribution in #5447
@chris-ng-scmp made their first contribution in #5466
@olasd made their first contribution in #5477
@BouchaaraAdil made their first contribution in #5465
@eharcevs made their first contribution in #5453
@bishal7679 made their first contribution in #5486
@naveensrinivasan made their first contribution in #5364
@Firxiao made their first contribution in #5496
@Akshit42-hue made their first contribution in #5529
@audig made their first contribution in #5534
@Juneezee made their first contribution in #5574
@raptorsun made their first contribution in #5439
@oronsh made their first contribution in #5596
@jzelinskie made their first contribution in #5611

Full Changelog: v0.27.0...v0.28.0-rc.0