m3db/m3 v1.4.0

on GitHub

Changelog

Features

• M3Query: Add write endpoint support for M3-Map-Tags-JSON header in InfluxDB path (#3816)
• M3Query: Add support for last_over_time in M3Query engine (#3884)
• M3Aggregator: Add p75/p25 as aggregation options (#3867)

Bug Fixes

• M3DB: Fix M3TSZ to be deterministic when encoding high precision values (3872)
• M3DB: Gracefully handle reads including documents with stale index state (3905)

Performance

• M3Aggregator: Rework close and remove persitFlushTimesEvery semantics in leader flushing in favour of always persisting shard flush times on a successful flush for optimized graceful failovers (#3890)
• M3DB: Optimize filesetFiles function during bootstrapping for namespaces with long retentions to prevent CPU spikes (#3900)
• M3DB: Avoid loading blocks in memory for namespaces with snapshots disabled during bootstrapping to reduce memory usage (#3919)