myxce/src
Rongsong Shen 40f510fb14 fix(controller): bug-1433 async-thread fdatasync block + bug-1434 committed_lsn CAS race
bug-1433: raft_cb_become_leader runs synchronously off peer_ctrl_dispatch_to_pool,
which hardcodes VTASK_LIVENESS for every inbound peer-control packet including
vote replies. The bug-1431 round-2 fix (flusher_flush_once force-flush in
persist_promotion_advance_committed) was reachable from that never-blocks task
class -- same bug family as bug-1198. Removed the force-flush; round-3
(durable-capped only) plus the already-shipped bug-1432 immediate-first-heartbeat
fix close the visibility-latency gap non-blockingly. TRACKED RESIDUAL:
persist_apply_pump_run_sync is still reachable on the same VTASK_LIVENESS path
and does bounded pread() -- lower risk (page-cache-hot) but strictly still
blocking I/O; not safe to remove outright (reopens bug-1043-family job loss),
needs its own follow-up (reclassify peer_ctrl_classify's winning-vote-reply case
or dispatch promotion tail onto a fresh VTASK_LIVE_BLOCK vtask).

bug-1434: persist_promotion_advance_committed and ha_standby_advance_committed_and_apply
raced on persist_t.committed_lsn via an unlocked load-then-conditional-store during
the promotion window (before ha->role flips to CTRL_PRIMARY) -- a losing racer could
regress committed_lsn. Added persist_committed_lsn_advance_atomic (CAS retry loop,
lock-free) and routed both call sites through it.

Validated: 19/19 unit test suites, 6-round chaotic soak (0 loss/divergence) + 6-round
sequential+leadership-coverage soak, both PASS. Also folds in raft-apply-decoupling
and raft-ha-core-safety validate-impl phase bumps to "implemented" and clears
config-upgrade-snapshot's now-satisfied entity-bearing-snapshots block.
2026-07-11 12:16:28 +00:00
..
autoscaler support shared libxce(for api server) 2026-01-19 11:02:49 +08:00
controller fix(controller): bug-1433 async-thread fdatasync block + bug-1434 committed_lsn CAS race 2026-07-11 12:16:28 +00:00
docs docs(ha-single-leader-role): sync steering + contributor docs to three-state model + own-term gate (task 6.1) 2026-06-13 14:58:55 +00:00
frontend chore: baseline snapshot — prior-session work + ha-consistency-invariants spec family 2026-06-11 13:21:50 +00:00
include fix(controller): bug-1433 async-thread fdatasync block + bug-1434 committed_lsn CAS race 2026-07-11 12:16:28 +00:00
lib fix(controller): bug-1433 async-thread fdatasync block + bug-1434 committed_lsn CAS race 2026-07-11 12:16:28 +00:00
nixSupport Merge Go frontend (apiserver + xcecli) into meson build 2026-04-14 11:23:18 +08:00
scheduler test(scheduler-controller-msg-gap): real handler/applier unit tests (bug-765 G-6) 2026-06-19 04:14:20 +00:00
schema fix(ha): bug-1421 close term-desync AE-reject blindspot in HA election 2026-07-09 11:56:46 +00:00
tools fix(controller): bug-1433 async-thread fdatasync block + bug-1434 committed_lsn CAS race 2026-07-11 12:16:28 +00:00
worker enhance xce-build skill 2026-05-30 08:13:59 +08:00
flake.lock chore(nix): repin flake.lock (c-capnproto) to restore buildable dev shell 2026-06-22 04:32:14 +00:00
flake.nix save works 2026-03-04 18:18:53 +08:00
meson.build Merge Go frontend (apiserver + xcecli) into meson build 2026-04-14 11:23:18 +08:00
meson.options Merge Go frontend (apiserver + xcecli) into meson build 2026-04-14 11:23:18 +08:00