93959bfgo3djca1nso1tuvvm6b27ab7q · 1 rows
| id | content_hash | title | description | design | acceptance_criteria | notes | status | priority | issue_type | assignee | estimated_minutes | created_at | created_by | owner | updated_at | closed_at | closed_by_session | external_ref | spec_id | compaction_level | compacted_at | compacted_at_commit | original_size | sender | ephemeral | wisp_type | pinned | is_template | mol_type | work_type | source_system | metadata | source_repo | close_reason | event_kind | actor | target | payload | await_type | await_id | timeout_ns | waiters | hook_bead | role_bead | agent_state | last_activity | role_type | rig | due_at | defer_until | no_history | started_at |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tarantool-etcd-lko | a9f5b3fdb1d8c955ea9817c5961cd2fd334733f9495cfcea8dc728d5d59c5bad | Route writes to current master (write-forwarding on followers) | Followers currently reject writes with ER_READONLY → gRPC UNAVAILABLE, and clientv3 does NOT fail over endpoints on Unavailable (see memory feedback_clientv3_error_assertions). Clients must pin to the leader, which breaks endpoint-agnostic client setups (AutoSyncInterval, DNS round-robin, k8s Service). Implement write-forwarding inside the role: when a follower receives a mutating RPC (Put / DeleteRange / Txn-with-writes / LeaseGrant / LeaseRevoke / LeaseKeepAlive / Compact / Auth* / Lock / Campaign / Resign / Proclaim), proxy it to the current Raft leader via experimental.connpool + a setuid stored Lua function (same pattern as MaintenanceMoveLeader, see project_cross_node_promote memory). Reads stay local per replicaset.read_pref (already implemented). | - Reuse the connpool helper introduced for MaintenanceMoveLeader (tests/conformance/harness/tarantool_rs_server.go:475 area). - Trigger forwarding inside grpc.lua make_handler before dispatching the write — cheaper than wrapping every kv/lease/txn module. - box.info.election.leader gives the leader id; map id→advertise URL via advertise.lua (already used for MemberList clientURLs). - Streaming RPCs (Watch, LeaseKeepAlive, Election Observe) are subtler — defer or handle separately; first cut should be unary-only. | 1. Mutating RPC on a follower in tarantool_rs3 backend succeeds (matches the leader-equivalent response shape, including header.revision monotonicity). 2. No regression in existing rs3 conformance subtests. 3. New conformance subtest TestWriteForwardingOnFollower covers Put/Txn/LeaseGrant from a follower endpoint. 4. If the leader is unknown (election in progress), return ErrGRPCNoLeader as today. | Discussed in chat 2026-05-19 as the only multi-master option that preserves etcd contract. Memory refs: project_cross_node_promote, feedback_clientv3_error_assertions. | open | 2 | feature | NULL | NULL | 2026-05-19T13:33:55Z | Eugene Blikh | bigbes@gmail.com | 2026-05-19T13:33:55Z | NULL | NULL | 0 | NULL | NULL | NULL | 0 | 0 | 0 | <binary> | 0 | NULL | NULL | NULL | 0 | NULL |