forked from lei.chen/myxce
Rongsong Shen
9b4b805a27
commit_resolve_pending_above(ce, lsn_floor, rc) fails every registered continuation for lsn > lsn_floor, reusing commit_resolve()'s existing exactly-once/idempotent guarantee (no parallel bookkeeping path). Truncation: a new on_truncate/truncate_cb_ctx callback on persist_t (same inversion-of-control shape as the existing on_durable_advance hook) fires from persist_truncate_wal_above after releasing p->lock, only when entries were actually removed. This one wrapper covers all three real truncation call sites: raft_cb_become_leader's post-election truncate, the library's on_truncate_from conflict-reconcile, and ha_demotion_convergence_fn's post-demotion truncate. Demotion: raft_cb_become_follower calls commit_resolve_pending_above(&c->commit, 0, -XCE_ERR_STANDBY) -- lsn_floor=0 fails everything, since a demoted node can never authoritatively confirm anything still pending (CP posture). Without this, a demoted or truncated node would leave any pending async command permanently unresolved -- the requester would simply never get a reply, worse than today's bounded-timeout behavior. Also closes bug-1407 (pre-existing test_config_repl flake, unrelated to this feature) -- confirmed fixed as a side effect of prior tasks in this series, 70/70 passing across 3 independent runs. |
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| .. | ||
| cluster.h | ||
| commit.h | ||
| slowlane.h | ||
| worker.h | ||