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tarantool-etcd-ymm iproto-impl: etcd_maintenance_move_leader vs Maintenance.MoveLeader
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bd update tarantool-etcd-ymm --claim
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| Created by | Eugene Blikh |
| Owner | bigbes@gmail.com |
| Created | 2026-05-19T14:54:41Z |
| Updated | 2026-07-17T14:27:36Z |
Wrap the existing handler maintenance.move_leader (already invoked by gRPC/JSON via defs.lua route etcdserverpb.Maintenance.MoveLeader) as a Lua global etcd_maintenance_move_leader callable via iproto CALL. Mechanical change in app/etcd/api.lua: add rawset(_G, 'etcd_maintenance_move_leader', wrap('maintenance', 'move_leader')) under the appropriate service block; append 'etcd_maintenance_move_leader' to the funcs table so box.schema.func.create plus guest grant runs at role apply; document the wrapper in the module-level LDoc comment. If Maintenance.MoveLeader returns UNIMPLEMENTED today, the wrapper still gets added so the iproto caller observes the same UNIMPLEMENTED error gRPC would return. Election.Observe is server-streaming over gRPC; iproto has no stream primitive, so propose a polling shape (observe_create/_pull/_cancel) mirroring the Watch precedent at api.lua:81-83.
etcd_maintenance_move_leader is callable from net.box:call('etcd_maintenance_move_leader', {req}) with no Lua error before handler dispatch. Successful request shape produces same successful response shape as gRPC. box.schema.func.create plus guest grant idempotent on role re-apply.
Epic tarantool-etcd-w8q. Handler at app/etcd/maintenance.lua.
No outgoing dependencies.
tarantool-etcd-cz5
— iproto-verify: etcd_maintenance_move_leader vs Maintenance.MoveLeader
blocks
| id | tarantool-etcd-ymm |
| content_hash | 5abccb539c482913cabd242acf2b32afd6eb182fda57781a502ac4411d704a0d |
| title | iproto-impl: etcd_maintenance_move_leader vs Maintenance.MoveLeader |
| description | Wrap the existing handler maintenance.move_leader (already invoked by gRPC/JSON via defs.lua route etcdserverpb.Maintenance.MoveLeader) as a Lua global etcd_maintenance_move_leader callable via iproto CALL. Mechanical change in app/etcd/api.lua: add rawset(_G, 'etcd_maintenance_move_leader', wrap('maintenance', 'move_leader')) under the appropriate service block; append 'etcd_maintenance_move_leader' to the funcs table so box.schema.func.create plus guest grant runs at role apply; document the wrapper in the module-level LDoc comment. If Maintenance.MoveLeader returns UNIMPLEMENTED today, the wrapper still gets added so the iproto caller observes the same UNIMPLEMENTED error gRPC would return. Election.Observe is server-streaming over gRPC; iproto has no stream primitive, so propose a polling shape (observe_create/_pull/_cancel) mirroring the Watch precedent at api.lua:81-83. |
| design | |
| acceptance_criteria | etcd_maintenance_move_leader is callable from net.box:call('etcd_maintenance_move_leader', {req}) with no Lua error before handler dispatch. Successful request shape produces same successful response shape as gRPC. box.schema.func.create plus guest grant idempotent on role re-apply. |
| notes | Epic tarantool-etcd-w8q. Handler at app/etcd/maintenance.lua. |
| status | open |
| priority | 3 |
| issue_type | task |
| assignee | NULL |
| estimated_minutes | NULL |
| created_at | 2026-05-19T14:54:41Z |
| created_by | Eugene Blikh |
| owner | bigbes@gmail.com |
| updated_at | 2026-07-17T14:27:36Z |
| 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 |
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| metadata | <binary> |
| source_repo | |
| close_reason | |
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| actor | |
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| timeout_ns | 0 |
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| last_activity | NULL |
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| defer_until | NULL |
| no_history | 0 |
| started_at | NULL |
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| issue_id | tarantool-etcd-ymm |
| label | milestone:m4-iproto-parity |
| id | 0ed412c2-bdc1-5efe-a4a2-30dbb4adc51b |
| issue_id | tarantool-etcd-cz5 |
| type | blocks |
| created_at | 2026-05-19T17:54:42Z |
| created_by | Eugene Blikh |
| metadata | <binary> |
| thread_id | |
| depends_on_issue_id | tarantool-etcd-ymm |
| depends_on_wisp_id | NULL |
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| id | 7bff7897-834b-5fdd-b8d7-cefa464e9a28 |
| issue_id | tarantool-etcd-ymm |
| event_type | created |
| actor | Eugene Blikh |
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| new_value | |
| comment | NULL |
| created_at | 2026-05-19T17:54:41Z |
| id | f406968b-245f-5f2c-a1b0-3f685d35ca2e |
| issue_id | tarantool-etcd-ymm |
| event_type | label_added |
| actor | Eugene Blikh |
| old_value | NULL |
| new_value | NULL |
| comment | Added label: milestone:m4-iproto-parity |
| created_at | 2026-05-21T14:37:13Z |
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