docs: add controller code consistency findings to persistence design

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Incorporates investigation of vtaskmgr.c, netio.c, cluster.c, job.c,
join.c, and worker.c into the persistence-and-ha-design document:

- Part 2.7: Controller connection context (workers/scheduler/API servers only)
- Part 3.8: COW lock hierarchy (kvmgr rwlock -> xzarray mutex)
- Part 3.9: Checkpoint timer uses delaymgr, not raw pthread
- Part 4.9: Endpoint deferred cleanup (close fd/SSL, defer slot cleanup)
- Part 4.10: mark_worker_unavail() already exists, only needs extending
- Part 6.5: Replication uses endpoint/iomgr/vtask SSL pipeline
- Part 8.3: Lock safety analysis for reply-after-hooks change
- P0-2a, P0-8a, P2-5a: New implementation steps
- Appendix A.3/A.4: standby_conn_t and ha_state_t use endpoint_t*

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Rongsong Shen 2026-04-21 04:46:20 +00:00

parent 877741d008

commit 98911a2154

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