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tarantool-etcd-qp9 MemberListRequest.linearizable decoded and dropped
Lined Up
bd update tarantool-etcd-qp9 --claim
bd close tarantool-etcd-qp9
| Created by | Eugene Blikh |
| Owner | bigbes@gmail.com |
| Created | 2026-07-17T13:21:27Z |
| Updated | 2026-07-17T13:21:27Z |
clientv3 sets linearizable=true by default since 3.5; the call must fail when the member is partitioned from quorum. That is the entire point of the flag — it is a quorum probe, not a freshness hint. app/etcd/cluster.lua:81 M.member_list() takes NO request argument and always serves local box.info.replication. The Range-only linearizable bounce (grpc.lua:180,221) does not cover MemberList. Nuance: our payload is never actually stale (membership is config-static, not raft-driven), so the RESPONSE is right — but the guarantee is absent, so a partitioned node answers confidently where etcd would fail. False-positive health signal.
linearizable=true fails or bounces to leader when quorum is unavailable; linearizable=false keeps serving locally; test covers the partitioned case.
No outgoing dependencies.
Nothing depends on this issue.
| id | tarantool-etcd-qp9 |
| content_hash | 1821d4049d7399c5a860e917014844d4b8ec8343d0ebed8371971c93410ce818 |
| title | MemberListRequest.linearizable decoded and dropped |
| description | clientv3 sets linearizable=true by default since 3.5; the call must fail when the member is partitioned from quorum. That is the entire point of the flag — it is a quorum probe, not a freshness hint. app/etcd/cluster.lua:81 M.member_list() takes NO request argument and always serves local box.info.replication. The Range-only linearizable bounce (grpc.lua:180,221) does not cover MemberList. Nuance: our payload is never actually stale (membership is config-static, not raft-driven), so the RESPONSE is right — but the guarantee is absent, so a partitioned node answers confidently where etcd would fail. False-positive health signal. |
| design | |
| acceptance_criteria | linearizable=true fails or bounces to leader when quorum is unavailable; linearizable=false keeps serving locally; test covers the partitioned case. |
| notes | |
| status | open |
| priority | 3 |
| issue_type | bug |
| assignee | NULL |
| estimated_minutes | NULL |
| created_at | 2026-07-17T13:21:27Z |
| created_by | Eugene Blikh |
| owner | bigbes@gmail.com |
| updated_at | 2026-07-17T13:21:27Z |
| closed_at | NULL |
| closed_by_session | |
| external_ref | NULL |
| spec_id | |
| compaction_level | 0 |
| compacted_at | NULL |
| compacted_at_commit | NULL |
| original_size | NULL |
| sender | |
| ephemeral | 0 |
| wisp_type | |
| pinned | 0 |
| is_template | 0 |
| mol_type | |
| work_type | |
| source_system | |
| metadata | <binary> |
| source_repo | |
| close_reason | |
| event_kind | |
| actor | |
| target | |
| payload | |
| await_type | |
| await_id | |
| timeout_ns | 0 |
| waiters | |
| hook_bead | |
| role_bead | |
| agent_state | |
| last_activity | NULL |
| role_type | |
| rig | |
| due_at | NULL |
| defer_until | NULL |
| no_history | 0 |
| started_at | NULL |
| is_blocked | 0 |
| issue_id | tarantool-etcd-qp9 |
| label | etcd-changelog-sweep |
| id | 019f703d-32c5-7d4a-916b-2706bee0ebfd |
| issue_id | tarantool-etcd-qp9 |
| event_type | created |
| actor | Eugene Blikh |
| old_value | |
| new_value | |
| comment | NULL |
| created_at | 2026-07-17T16:21:26Z |
| id | 019f703d-32c6-79ac-bf59-3cb8cb7a1dd0 |
| issue_id | tarantool-etcd-qp9 |
| event_type | label_added |
| actor | Eugene Blikh |
| old_value | NULL |
| new_value | NULL |
| comment | Added label: etcd-changelog-sweep |
| created_at | 2026-07-17T16:21:26Z |
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