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feat(worker-rejoin-resync): task 6.1 - trigger reconciliation on rejoin

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Arm a reconciliation round in apply_join_state() the moment a worker
host becomes connected (first join, reconnect, or failover-reconnect -
all routed through the same shared call site, Req 1.1-1.3), then send
the query from on_worker_join() strictly after the join reply and
existing config push (Req 2.1-2.2), verified via a structural test
that reads real wire order off the endpoint queue.

Also closes Req 3.7's config-delivery seam end-to-end: worker_resync_
window_ms now rides the existing Conf4Worker push (clustername
precedent, no new opcode) and the worker applies it to its retention
window on receipt.

Fixes bug-1752: myreq_handler had no OPCode_push dispatch case at all,
so every config push - including the pre-existing clustername field -
was silently discarded. Confirmed harmless until now (clustername was
never read anywhere in src/worker/); closed narrowly for
worker_resync_window_ms only.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y4M5MJM2zK6nU43da267Ku
This commit is contained in:
Rongsong Shen 2026-09-01 19:43:18 +00:00
parent 48c6cfd58a
commit a3d12d37d9
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8 changed files with 1045 additions and 3 deletions
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5
src/schema/controller.capnp
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@ -249,8 +249,9 @@ struct Conf4Sched $C.mapname("xce_conf4sched_t"){
}
struct Conf4Worker $C.mapname("xce_conf4worker_t") {
clustername @0: Text;
configvars @1: List(ConfigVar) $C.mapname("confvars") $C.maplistcount("n_confvars");
clustername @0: Text;
configvars @1: List(ConfigVar) $C.mapname("confvars") $C.maplistcount("n_confvars");
workerResyncWindowMs @2: UInt32 $C.mapname("worker_resync_window_ms");
}
struct ConfigData $C.mapname("xce_configdata_t") {