Module cluster 

Self-organizing sharding for mentedb-server.

Running N nodes shards the fleet with no external coordinator: nodes gossip to converge on the live set (engine mentedb::sharding::gossip), rendezvous placement picks one owner per agent (every node computes the same owner), and a request that lands on the wrong node is forwarded to the owner. Ownership is the single-writer lock, so an agent’s database is only ever written by one node.

Off unless MENTEDB_SHARDING is set. Routing needs JWT auth (the agent id comes from the token); without a --jwt-secret the middleware is a pass-through.

Structs

Cluster

Cluster handle held in AppState; present only when sharding is enabled.

HttpGossip

reqwest-backed gossip transport: POST our view to a peer, get theirs back.

Constants

GOSSIP_PATH

Path peers POST their gossip view to (and the reply carries ours back).

Functions

gossip_handler

Handler for GOSSIP_PATH: merge a peer’s view and answer with ours. 404 when sharding is off.

route

Middleware: forward a request to the node that owns its agent, or serve it here. A pass-through when sharding is off, the request carries no resolvable agent, or we already own it.