{"type":"post","id":"uber-has-open-sourced-shard-manager-0d4aaf","slug":"uber-has-open-sourced-shard-manager-0d4aaf","title":"Uber has open-sourced Shard Manager","description":"Uber has open-sourced Shard Manager, a service that assigns shards using application-reported load rather than shard counts alone.","retrieval_nugget":"Uber has open-sourced Shard Manager, a service that assigns shards using application-reported load rather than shard counts alone. Uber says its first production integration cut CPU usage on the hottest host by 38%, illustrating how explicit placement can improve capacity use in sharded services.","published_at":"2026-11-12","updated_at":"2026-11-12","record_date":"2026-11-12","date_kind":"published_at","topics":["infrastructure","open-source"],"entities":["Uber","Shard Manager","Cadence","Ringpop","etcd","Apache Helix"],"related_patterns":[],"novelty_label":"new_fact","what_changed":"Uber announces open-source Shard Manager, a load-aware sharding service whose first production integration reduced CPU usage on Cadence’s hottest host by 38%.","prior_refs":["https://newruntime.com/posts/ensuring-similar-computational-resources-to-stateful-workloads-running-45481c/"],"source_url":"https://www.uber.com/us/en/blog/introducing-shard-manager","source_urls":["https://www.uber.com/us/en/blog/introducing-shard-manager"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:uber-has-open-sourced-shard-manager-0d4aaf","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/uber-has-open-sourced-shard-manager-0d4aaf/","markdown":"https://newruntime.com/posts/uber-has-open-sourced-shard-manager-0d4aaf.md","json":"https://newruntime.com/posts/uber-has-open-sourced-shard-manager-0d4aaf.json"},"markdown_url":"https://newruntime.com/posts/uber-has-open-sourced-shard-manager-0d4aaf.md","next_reads":[{"type":"topic","path":"/topics/infrastructure/","url":"https://newruntime.com/topics/infrastructure/","title":"Infrastructure","reason":"Explore the infrastructure topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/infrastructure.md","json_url":"https://newruntime.com/topics/infrastructure.json"},{"type":"topic","path":"/topics/open-source/","url":"https://newruntime.com/topics/open-source/","title":"Open Source","reason":"Explore the open-source topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/open-source.md","json_url":"https://newruntime.com/topics/open-source.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}