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Releases: thanos-io/thanos

v0.31.0-rc.0

24 Feb 15:26
@fpetkovski fpetkovski
v0.31.0-rc.0
5262948
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v0.31.0-rc.0 Pre-release
Pre-release

What's Changed

Added

  • #5990 Cache/Redis: add support for Redis Sentinel via new option master_name.
  • #6008 *: Add counter metric gate_queries_total to gate.
  • #5926 Receiver: Add experimental string interning in writer. Can be enabled with a hidden flag --writer.intern.
  • #5773 Store: Support disabling cache index header file by setting --disable-caching-index-header-file. When toggled, Stores can run without needing persistent disks.
  • #5653 Receive: Allow setting hashing algorithm per tenant in hashrings config.
  • #6074 *: Add histogram metrics thanos_store_server_series_requested and thanos_store_server_chunks_requested to all Stores.
  • #6074 *: Allow configuring series and sample limits per Series request for all Stores.
  • #6104 Store: Support S3 session token.
  • #5548 Query: Add experimental support for load balancing across multiple Store endpoints.
  • #6148 Query-frontend: Add traceID to slow query detected log line.
  • #6153 Query-frontend: Add remote_user (from http basic auth) and remote_addr to slow query detected log line.

Fixed

  • #5995 Sidecar: Loads TLS certificate during startup.
  • #6044 Receive: Mark out-of-window errors as conflict when out-of-window samples ingestion is used.
  • #6050 Store: Re-try bucket store initial sync upon failure.
  • #6067 Receive: Fix panic when querying uninitialized TSDBs.
  • #6082 Query: Don't error when no stores are matched.
  • #6098 Cache/Redis: Upgrade rueidis to v0.0.93 to fix potential panic when the client-side caching is disabled.
  • #6103 Mixins(Rule): Fix expression for long rule evaluations.
  • #6121 Receive: Deduplicate meta-monitoring queries for Active Series Limiting.
  • #6137 Downsample: Repair of non-empty XOR chunks during 1h downsampling.
  • #6125 Query Frontend: Fix vertical shardable instant queries do not produce sorted results for sort, sort_desc, topk and bottomk functions.

Changed

  • #6010 *: Upgrade Prometheus to v0.42.0.
  • #5999 *: Upgrade Alertmanager dependency to v0.25.0.
  • #5887 Tracing: Make sure rate limiting sampler is the default, as was the case in version pre-0.29.0.
  • #5997 Rule: switch to miekgdns DNS resolver as the default one.
  • #6035 Tools (replicate): Support all types of matchers to match blocks for replication. Change matcher parameter from string slice to a single string.
  • #6131 Store: breaking ⚠️ Use Histograms instead of Summaries for bucket metrics.

New Contributors

Full Changelog: v0.30.0...v0.31.0-rc.0

Contributors

harry671003, farodin91, and 14 other contributors
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v0.30.2

31 Jan 20:28
@yeya24 yeya24
v0.30.2
fe3f5d2
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v0.30.2

What's Changed

  • Fixed panic because of nil sampler in #6066 by @xBazilio
  • Fix store-gateway deadlock due to not close BlockSeriesClient in #6086 by @alanprot

Full Changelog: v0.30.1...v0.30.2

Contributors

alanprot and xBazilio
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v0.30.1

04 Jan 19:00
@GiedriusS GiedriusS
v0.30.1
27e4714
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v0.30.1

This release contains a very small fix for the new Redis client. In the previous release, it was impossible to enable multiple caches using the new Redis client because it tries to register metrics more than once. As a result, for example, it was impossible to use Redis in Thanos Store with index cache and caching bucket enabled.

What's Changed

  • Fix duplicate metrics registration in Redis client in #6009 by @kama910

Full Changelog: v0.30.0...v0.30.1

Contributors

kama910
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v0.30.0

03 Jan 14:42
@bwplotka bwplotka
v0.30.0
8f57668
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v0.30.0

v0.30 brings many important fixes & optimizations to compaction, store gateway, receive replication and querying. Make sure to try the new PromQL engine which is more & more efficient every week.

NOTE: Querier's query.promql-engine flag enabling the new PromQL engine is now unhidden. We encourage users to use new experimental PromQL engine for efficiency reasons.

Furthermore, we recommend you use Redis as a caching client (if you use store GW or query frontend caching) and Ketama algorithm as receiver hashing algorithm ( --receive.hashrings-algorithm=ketama - introducing consistent hashing to receiver).

Changes

Fixed

  • #5716 DNS: Fix miekgdns resolver LookupSRV to work with CNAME records.
  • #5844 Query Frontend: Fixes @ modifier time range when splitting queries by interval.
  • #5854 Query Frontend: lookback_delta param is now handled in query frontend.
  • #5860 Query: Fixed bug of not showing query warnings in Thanos UI.
  • #5856 Store: Fixed handling of debug logging flag.
  • #5230 Rule: Stateless ruler support restoring for state from query API servers. The query API servers should be able to access the remote write storage.
  • #5880 Query Frontend: Fixes some edge cases of query sharding analysis.
  • #5893 Cache: Fixed redis client not respecting SetMultiBatchSize config value.
  • #5966 Query: Stop relying on non-existent hints for mint and maxt when selecting series for the api/v1/series HTTP endpoint.
  • #5948 Store: chunks_fetched_duration wrong calculation.
  • #5910: Receive: Fixed ketama quorum bug that was could cause success response for failed replication. This also optimize heavily receiver CPU use.

Added

  • #5814 Store: Added metric thanos_bucket_store_postings_size_bytes that shows the distribution of how many postings (in bytes) were needed for each Series() call in Thanos Store. Useful for determining limits.
  • #5703 StoreAPI: Added hash field to series' chunks. Store gateway and receive implements that field and proxy leverage that for quicker deduplication.
  • #5801 Store: Added a new flag --store.grpc.downloaded-bytes-limit that limits the number of bytes downloaded in each Series/LabelNames/LabelValues call. Use thanos_bucket_store_postings_size_bytes for determining the limits.
  • #5836 Receive: Added hidden flag tsdb.memory-snapshot-on-shutdown to enable experimental TSDB feature to snapshot on shutdown. This is intended to speed up receiver restart.
  • #5839 Receive: Added parameter --tsdb.out-of-order.time-window to set time window for experimental out-of-order samples ingestion. Disabled by default (set to 0s). Please note if you enable this option and you use compactor, make sure you set the --enable-vertical-compaction flag, otherwise you might risk compactor halt.
  • #5889 Query Frontend: Added support for vertical sharding label_replace and label_join functions.
  • #5865 Compact: Retry on sync metas error.
  • #5819 Store: Added a few objectives for Store's data summaries (touched/fetched amount and sizes). They are: 50, 95, and 99 quantiles.
  • #5837 Store: Added streaming retrival of series from object storage.
  • #5940 Objstore: Support for authenticating to Swift using application credentials.
  • #5945 Tools: Added new no-downsample marker to skip blocks when downsampling via thanos tools bucket mark --marker=no-downsample-mark.json. This will skip downsampling for blocks with the new marker.
  • #5977 Tools: Added remove flag on bucket mark command to remove deletion, no-downsample or no-compact markers on the block

Changed

  • #5785 Query: thanos_store_nodes_grpc_connections now trimms external_labels label name longer than 1000 character. It also allows customizations in what labels to preserve using query.conn-metric.label flag.
  • #5542 Mixin: Added query concurrency panel to Querier dashboard.
  • #5846 Query Frontend: vertical query sharding supports subqueries.
  • #5909 Receive: Compact tenant head after no appends have happened for 1.5 tsdb.max-block-size.
  • #5593 Cache: Switched Redis client to Rueidis. Rueidis is faster and provides client-side caching. It is highly recommended to use it so that repeated requests for the same key would not be needed.
  • #5896 *: Upgraded Prometheus to v0.40.7 without implementing native histogram support. Querying native histograms will fail with Error executing query: invalid chunk encoding "<unknown>" and native histograms in write requests are ignored.
  • #5838 Mixin: Added data touched type to Store dashboard.
  • #5922 Compact: Retry on clean, partial marked errors when possible.

Removed

  • #5824 Mixin: Remove noisy ThanosReceiveTrafficBelowThreshold alert.

New Contributors

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Contributors

douglascamata, hyder, and 29 other contributors
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v0.30.0-rc.0

21 Dec 17:22
@bwplotka bwplotka
v0.30.0-rc.0
fcc9e40
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v0.30.0-rc.0

v0.30 brings many important fixes & optimizations to compaction, store gateway, receive replication and querying. Make sure to try the new PromQL engine which is more & more efficient every week.

NOTE: Querier's query.promql-engine flag enabling the new PromQL engine is now unhidden. We encourage users to use new experimental PromQL engine for efficiency reasons.

Furthermore, we recommend you use Redis as a caching client (if you use store GW or query frontend caching) and Ketama algorithm as receiver hashing algorithm ( --receive.hashrings-algorithm=ketama - introducing consistent hashing to receiver).

Enjoy & Happy Christmas Holidays! 🎉

Changes

Fixed

  • #5716 DNS: Fix miekgdns resolver LookupSRV to work with CNAME records.
  • #5844 Query Frontend: Fixes @ modifier time range when splitting queries by interval.
  • #5854 Query Frontend: lookback_delta param is now handled in query frontend.
  • #5860 Query: Fixed bug of not showing query warnings in Thanos UI.
  • #5856 Store: Fixed handling of debug logging flag.
  • #5230 Rule: Stateless ruler support restoring for state from query API servers. The query API servers should be able to access the remote write storage.
  • #5880 Query Frontend: Fixes some edge cases of query sharding analysis.
  • #5893 Cache: Fixed redis client not respecting SetMultiBatchSize config value.
  • #5966 Query: Stop relying on non-existent hints for mint and maxt when selecting series for the api/v1/series HTTP endpoint.
  • #5948 Store: chunks_fetched_duration wrong calculation.
  • #5910: Receive: Fixed ketama quorum bug that was could cause success response for failed replication. This also optimize heavily receiver CPU use.

Added

  • #5814 Store: Added metric thanos_bucket_store_postings_size_bytes that shows the distribution of how many postings (in bytes) were needed for each Series() call in Thanos Store. Useful for determining limits.
  • #5703 StoreAPI: Added hash field to series' chunks. Store gateway and receive implements that field and proxy leverage that for quicker deduplication.
  • #5801 Store: Added a new flag --store.grpc.downloaded-bytes-limit that limits the number of bytes downloaded in each Series/LabelNames/LabelValues call. Use thanos_bucket_store_postings_size_bytes for determining the limits.
  • #5836 Receive: Added hidden flag tsdb.memory-snapshot-on-shutdown to enable experimental TSDB feature to snapshot on shutdown. This is intended to speed up receiver restart.
  • #5839 Receive: Added parameter --tsdb.out-of-order.time-window to set time window for experimental out-of-order samples ingestion. Disabled by default (set to 0s). Please note if you enable this option and you use compactor, make sure you set the --enable-vertical-compaction flag, otherwise you might risk compactor halt.
  • #5889 Query Frontend: Added support for vertical sharding label_replace and label_join functions.
  • #5865 Compact: Retry on sync metas error.
  • #5819 Store: Added a few objectives for Store's data summaries (touched/fetched amount and sizes). They are: 50, 95, and 99 quantiles.
  • #5837 Store: Added streaming retrival of series from object storage.
  • #5940 Objstore: Support for authenticating to Swift using application credentials.
  • #5945 Tools: Added new no-downsample marker to skip blocks when downsampling via thanos tools bucket mark --marker=no-downsample-mark.json. This will skip downsampling for blocks with the new marker.
  • #5977 Tools: Added remove flag on bucket mark command to remove deletion, no-downsample or no-compact markers on the block

Changed

  • #5785 Query: thanos_store_nodes_grpc_connections now trimms external_labels label name longer than 1000 character. It also allows customizations in what labels to preserve using query.conn-metric.label flag.
  • #5542 Mixin: Added query concurrency panel to Querier dashboard.
  • #5846 Query Frontend: vertical query sharding supports subqueries.
  • #5909 Receive: Compact tenant head after no appends have happened for 1.5 tsdb.max-block-size.
  • #5593 Cache: Switched Redis client to Rueidis. Rueidis is faster and provides client-side caching. It is highly recommended to use it so that repeated requests for the same key would not be needed.
  • #5896 *: Upgraded Prometheus to v0.40.7 without implementing native histogram support. Querying native histograms will fail with Error executing query: invalid chunk encoding "<unknown>" and native histograms in write requests are ignored.
  • #5838 Mixin: Added data touched type to Store dashboard.
  • #5922 Compact: Retry on clean, partial marked errors when possible.

Removed

  • #5824 Mixin: Remove noisy ThanosReceiveTrafficBelowThreshold alert.

New Contributors

Commits
Read more

Contributors

douglascamata, hyder, and 29 other contributors
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v0.29.0

03 Nov 14:49
@GiedriusS GiedriusS
v0.29.0
194e1fa
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v0.29.0

v0.29.0 is out after 69 days of work since v0.28.0! Thank you to all 35 contributors who have contributed to this release. It wouldn't be the same without you. v0.29.0 has no changes since the release candidate.

Some of the highlights include OpenTelemetry support, Azure support has been improved with a new SDK, increased query speed, receive has new features to limit series per tenant.

First, let's celebrate new contributors, and then you can find the changelog where you can find all of the details. Please try it out and let us know if you spot any problems!

New Contributors

Fixed

  • #5642 Receive: Log labels correctly in writer debug messages.
  • #5655 Receive: Fix recreating already pruned tenants.
  • #5702 Store: Upgrade minio-go/v7 to fix panic caused by leaked goroutines.
  • #5736 Compact: Fix crash in GatherNoCompactionMarkFilter.NoCompactMarkedBlocks.
  • #5763 Compact: Enable metadata cache.
  • #5759 Compact: Fix missing duration log key.
  • #5799 Query Frontend: Fixed sharding behaviour for vector matches. Now queries with sharding should work properly where the query looks like: foo and without (lbl) bar.

Added

  • #5565 Receive: Allow remote write request limits to be defined per file and tenant (experimental).
  • #5654 Query: add --grpc-compression flag that controls the compression used in gRPC client. With the flag it is now possible to compress the traffic between Query and StoreAPI nodes - you get lower network usage in exchange for a bit higher CPU/RAM usage.
  • #5650 Query Frontend: Add sharded queries metrics. thanos_frontend_sharding_middleware_queries_total shows how many queries were sharded or not sharded.
  • #5658 Query Frontend: Introduce new optional parameters (query-range.min-split-interval, query-range.max-split-interval, query-range.horizontal-shards) to implement more dynamic horizontal query splitting.
  • #5721 Store: Add metric thanos_bucket_store_empty_postings_total for number of empty postings when fetching series.
  • #5723 Compactor: Support disable block viewer UI.
  • #5674 Query Frontend/Store: Add support connecting to redis using TLS.
  • #5734 Store: Support disable block viewer UI.
  • #5411 Tracing: Add OpenTelemetry Protocol exporter.
  • #5779 Objstore: Support specifying S3 storage class.
  • #5741 Query: add metrics on how much data is being selected by downstream Store APIs.
  • #5673 Receive: Reload tenant limit configuration on file change.
  • #5749 Query Frontend: Added small LRU cache to cache query analysis results.

Changed

  • #5738 Global: replace crypto/sha256 with minio/sha256-simd to make hash calculation faster in metadata and reloader packages.
  • #5648 Query Frontend: cache vertical shards in query-frontend.
  • #5753 Build with Go 1.19.
  • #5255 Query: Use k-way merging for the proxying logic. The proxying sub-system now uses much less resources (~25-80% less CPU usage, ~30-50% less RAM usage according to our benchmarks). Reduces query duration by a few percent on queries with lots of series.
  • #5690 Compact: update --debug.accept-malformed-index flag to apply to downsampling. Previously the flag only applied to compaction, and fatal errors would still occur when downsampling was attempted.
  • #5707 Objstore: Update objstore to latest version which includes a refactored Azure Storage Account implementation with a new SDK.
  • #5641 Store: Remove hardcoded labels in shard matcher.
  • #5641 Query: Inject unshardable le label in query analyzer.
  • #5685 Receive: Make active/head series limiting configuration per tenant by adding it to new limiting config.
  • #5411 Tracing: Change Jaeger exporter from OpenTracing to OpenTelemetry. Options RPC Metrics, Gen128Bit and Disabled are now deprecated and won't have any effect when set ⚠️.
  • #5767 *: Upgrade Prometheus to v2.39.0.
  • #5771 *: Upgrade Prometheus to v2.39.1.

Full Changelog: v0.28.1...v0.29.0

Contributors

olasd, naveensrinivasan, and 33 other contributors
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v0.29.0-rc.0

21 Oct 14:56
@GiedriusS GiedriusS
v0.29.0-rc.0
f354173
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v0.29.0-rc.0 Pre-release
Pre-release

v0.29.0-rc.0 is out after 56 days of work since v0.28.0! Thank you to all 35 contributors who have contributed to this release. It wouldn't be the same without you.

Some of the highlights include OpenTelemetry support, Azure support has been improved with a new SDK, increased query speed, receive has new features to limit series per tenant.

First, let's celebrate new contributors, and then you can find the changelog where you can find all of the details. Please try out this RC and let us know if you spot any problems!

New Contributors

Fixed

  • #5642 Receive: Log labels correctly in writer debug messages.
  • #5655 Receive: Fix recreating already pruned tenants.
  • #5702 Store: Upgrade minio-go/v7 to fix panic caused by leaked goroutines.
  • #5736 Compact: Fix crash in GatherNoCompactionMarkFilter.NoCompactMarkedBlocks.
  • #5763 Compact: Enable metadata cache.
  • #5759 Compact: Fix missing duration log key.
  • #5799 Query Frontend: Fixed sharding behaviour for vector matches. Now queries with sharding should work properly where the query looks like: foo and without (lbl) bar.

Added

  • #5565 Receive: Allow remote write request limits to be defined per file and tenant (experimental).
  • #5654 Query: add --grpc-compression flag that controls the compression used in gRPC client. With the flag it is now possible to compress the traffic between Query and StoreAPI nodes - you get lower network usage in exchange for a bit higher CPU/RAM usage.
  • #5650 Query Frontend: Add sharded queries metrics. thanos_frontend_sharding_middleware_queries_total shows how many queries were sharded or not sharded.
  • #5658 Query Frontend: Introduce new optional parameters (query-range.min-split-interval, query-range.max-split-interval, query-range.horizontal-shards) to implement more dynamic horizontal query splitting.
  • #5721 Store: Add metric thanos_bucket_store_empty_postings_total for number of empty postings when fetching series.
  • #5723 Compactor: Support disable block viewer UI.
  • #5674 Query Frontend/Store: Add support connecting to redis using TLS.
  • #5734 Store: Support disable block viewer UI.
  • #5411 Tracing: Add OpenTelemetry Protocol exporter.
  • #5779 Objstore: Support specifying S3 storage class.
  • #5741 Query: add metrics on how much data is being selected by downstream Store APIs.
  • #5673 Receive: Reload tenant limit configuration on file change.
  • #5749 Query Frontend: Added small LRU cache to cache query analysis results.

Changed

  • #5738 Global: replace crypto/sha256 with minio/sha256-simd to make hash calculation faster in metadata and reloader packages.
  • #5648 Query Frontend: cache vertical shards in query-frontend.
  • #5753 Build with Go 1.19.
  • #5255 Query: Use k-way merging for the proxying logic. The proxying sub-system now uses much less resources (~25-80% less CPU usage, ~30-50% less RAM usage according to our benchmarks). Reduces query duration by a few percent on queries with lots of series.
  • #5690 Compact: update --debug.accept-malformed-index flag to apply to downsampling. Previously the flag only applied to compaction, and fatal errors would still occur when downsampling was attempted.
  • #5707 Objstore: Update objstore to latest version which includes a refactored Azure Storage Account implementation with a new SDK.
  • #5641 Store: Remove hardcoded labels in shard matcher.
  • #5641 Query: Inject unshardable le label in query analyzer.
  • #5685 Receive: Make active/head series limiting configuration per tenant by adding it to new limiting config.
  • #5411 Tracing: Change Jaeger exporter from OpenTracing to OpenTelemetry. Options RPC Metrics, Gen128Bit and Disabled are now deprecated and won't have any effect when set ⚠️.
  • #5767 *: Upgrade Prometheus to v2.39.0.
  • #5771 *: Upgrade Prometheus to v2.39.1.

Full Changelog: v0.28.1...v0.29.0-rc.0

Contributors

olasd, naveensrinivasan, and 33 other contributors
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v0.28.1

06 Oct 18:54
@yeya24 yeya24
v0.28.1
41a8ce6
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v0.28.1

What's Changed

Fixed

  • #5702 Store: Upgrade minio-go/v7 to fix panic caused by leaked goroutines.

Full Changelog: v0.28.0...v0.28.1

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v0.28.0

26 Aug 19:29
@yeya24 yeya24
v0.28.0
7f58065
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v0.28.0

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.

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

Full Changelog: v0.27.0...v0.28.0

Contributors

olasd, naveensrinivasan, and 14 other contributors
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v0.28.0-rc.0

23 Aug 17:22
@yeya24 yeya24
v0.28.0-rc.0
681ab36
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v0.28.0-rc.0 Pre-release
Pre-release

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

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

Contributors

olasd, naveensrinivasan, and 14 other contributors
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