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@justinhwang justinhwang released this 25 Sep 21:06
v1.6.0
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Backwards Incompatible Changes

These affect users who import M3 as a Go library. Deployed binaries, on-disk formats and wire formats are unchanged.

  • All: Metrics scopes now use github.com/uber-go/tally/v4; the github.com/m3db/prometheus_* forks are no longer used and the instrument package exposes a single upstream prometheus/client_golang registry type (#4423)
  • All: github.com/m3db/stackmurmur3 is replaced by github.com/twmb/murmur3 (bit-identical output, verified by a parity test) (#4420, #4422)
  • All: Minimum Go version is now 1.26 (#4410, #4416, #4425)
  • All: etcd dependency moved from 3.5.5 to 3.6.13; the embedded etcd config uses the renamed embed.Config URL fields (ListenPeerUrls, ListenClientUrls, AdvertisePeerUrls, AdvertiseClientUrls) (#4407, #4416)

Features

  • M3Aggregator: Support ingestion routing policies, with a routing policy filter in M3Msg and dynamic configuration of consumer service filters via topic updates (#4297, #4378, #4381, #4386, #4388, #4389, #4390)
  • M3Aggregator: TLS support for the aggregator server and client, including TLS handshake on connect and a local TLS development environment (#4283, #4376, #4377, #4379)
  • M3Aggregator: Add percentage filter for consumer writers and allow multiple filters per consumer service (#4223, #4247)
  • M3Aggregator: Add read timeout, custom DialContext/ContextDialer and bytes emission metrics to the aggregator client (#4131, #4290, #4300, #4315)
  • M3Aggregator: Add TimerBatchSizes distribution metric and write success/error latency histograms (#4320, #4321, #4384, #4385)
  • M3Aggregator: Local Docker development environment with debug mode and a consumer service (#4374, #4375, #4380)
  • M3Coordinator: Add IncludeTags to R2 rollup options (#4277)
  • M3Coordinator: Add config for forwarding a percentage of unique series via remote write, and sampled logging of write/fetch host errors (#4173, #4190)
  • M3Coordinator: Sort Graphite find results (#4163)
  • M3DB: Circuit breaker middleware for client host queue writes, tripping only on timeout errors (#4335, #4336, #4373, #4393)
  • M3DB: Sub-cluster placement algorithm with validation for partial sub-clusters (#4355, #4391)
  • M3DB: Support static topology config with more hosts than the replication factor (#4239, #4242)
  • M3DB: Add x/encoding.Cloner to shallow clone response iterators (#4271)
  • M3DB: Add metrics for time taken to connect to the cluster at startup (#4267)
  • M3DB: Add verify_ids tool (#4244)
  • M3DB: Support etcd prefix KV retrievals and watches (#4333)
  • M3Msg: Graceful close for message writers, abort on server close, and stop accepting new connections before disconnecting existing ones (#4328, #4329, #4330, #4387)
  • M3Msg: Consumer writer flush latency metrics (#4326)
  • All: Optionally log build information as JSON, and expose a Zap config from the log config (#4097, #4100)
  • All: Release linux and darwin arm64 binaries and multi-arch (amd64 and arm64) Docker images (#4442)

Bug Fixes

  • M3Aggregator: Fix colliding filters in MultiCharSequenceFilter by matching the most complete pattern rather than the first (#4188)
  • M3Aggregator: Followers can lead before the first flush is persisted (#4169)
  • M3Aggregator: Fix a memory allocation issue in ConsumerServiceWriterMetrics (#4382)
  • M3Aggregator: Close the aggregator client connection asynchronously (#4327)
  • M3Coordinator: Fix protobuf tag collision with Prometheus (#4256)
  • M3Coordinator: Fix inverted interpretation of the Prometheus remote write shadow sampling config (#4210)
  • M3Coordinator: Fix etcd config default value handling and only configure env configs when specified (#4130, #4216)
  • M3Query: Fix matching of disjunctions that include the empty string (#4258)
  • M3DB: Fix regexp LRU cache bug (#4250)
  • M3DB: Write datapoints that share timestamp, value and annotation but differ in time unit (#4401)
  • M3DB: Add index results from subsequent bootstrap runs (#4193)
  • M3DB: Fix strictly increasing order of the shard entry list for FetchBlocksMetadata pagination (#4298)
  • M3DB: Count write acks from paired leaving/initializing shards (#4191)
  • M3DB: Fix nil pointer panic on SyncCluster failure and the Get method of writeBatchPooledReqPool (#4246, #4253)
  • M3DB: Fix wrong error variable returned in two places, found by nilnesserr (#4430)
  • M3Msg: Remove data race in the producer (#4160)
  • All: Satisfy the yaml Marshaler interface on structs with custom unmarshalers (#4213)

Performance

  • M3Aggregator: Pool locked aggregations, fix an unintended allocation during element flushing, and clean up the aggregated metric writer and encoder (#4108, #4109, #4110, #4112)
  • M3Coordinator: Optimize m3.IsRollupID to not allocate and allow iterator reuse in ReverseMatch (#4304, #4305, #4307)
  • M3Msg: Message pooling cleanup, specialized message writer acker map, field alignment fix for RefCountedMessage, and parallel consumer writer flushes (#4104, #4105, #4113, #4331)
  • M3DB: Pass the shard set as part of tick instead of storing it in namespace readers (#4323)
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