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Changelog

0.5.0 — 2026-03-10

  • Rename Storage to Materializer. The Bedrock.DataPlane.Storage module tree has been renamed to Bedrock.DataPlane.Materializer to better reflect its role — materializing committed state from the write-ahead log. The :storage capability is now :materializer in cluster config, and the corresponding config key changes accordingly:

    # Before
capabilities: [:coordination, :log, :storage],
storage: [path: working_dir]

# After
capabilities: [:coordination, :log, :materializer],
materializer: [path: working_dir]

  • Add object storage layer. New Bedrock.ObjectStorage module provides a backend-agnostic interface for persisting data to S3-compatible stores or the local filesystem. Supports chunked streaming reads/writes, snapshots, conditional puts, and versioned updates. See the S3 Object Storage guide.

  • Add durability profiles. New Bedrock.Durability module lets you inspect and enforce a cluster's durability posture. Profiles evaluate whether object storage, replication, and WAL configuration meet requirements. Defaults to :strict mode; use :relaxed for local development. See the Durability Foundation guide.

  • Add demux layer for shard-aware persistence. New Bedrock.DataPlane.Demux splits committed mutations by shard and persists them asynchronously through per-shard servers and a persistence queue, without blocking commit acknowledgments. See the Async Persistence Queue guide.

  • Add shard router. New Bedrock.DataPlane.ShardRouter routes keys to shards via ETS ceiling search on shard boundary keys, replacing the former storage team descriptor approach.

  • Distribute system metadata through the resolver. Commit proxies now receive differential metadata updates (keys prefixed with \xff) during conflict resolution, enabling proxies to stay current with cluster topology changes without a separate distribution channel.

  • Add single-resolver fast path. Commit proxy finalization skips Task.async and async_stream overhead when only one resolver is configured, reducing latency for non-sharded workloads.

  • Add cluster bootstrap discovery. New Bedrock.ClusterBootstrap.Discovery module initializes cluster state from object storage, enabling clusters to bootstrap from a durable snapshot.

  • Redesign recovery phases. TransactionSystemLayoutPhase is renamed to TopologyPhase. StorageRecruitmentPhase, VacancyCreationPhase, and VersionDeterminationPhase are removed — their responsibilities are now handled by the new MaterializerBootstrapPhase.