M3DB
AssessPlatforms
A distributed time-series database used for large-scale storage and querying.
Why it's here
Placed in Assess: 1 article(s) of evidence from 1 source(s), led by framework updates, with 1 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 6InfoQ·9/21/2026framework_updateUber Redesigns M3DB Sharding with Subclusters
Uber redesigned shard placement in M3DB using fixed-size subclusters to reduce the impact of node failures, maintenance, and cluster scaling. The new approach bounds shard dependencies, preserves replica isolation, and uses a greedy migration algorithm to avoid a separate rebalancing pass and unnecessary data movement.