Files
seaweedfs/weed/plugin/worker
Чепурнов СемёнandChepurnov Simon 624a13ecc6 EC worker: pin jobs to replica-host workers, late-bind local source (#11718)
* feat: prefer same-host worker and local EC replica

Admin executor pick ranked idle workers only, so a job whose volume
lived on full-03 could still run on full-01 and pull the whole .dat
across the LAN. Rank workers whose Hello host matches any replica
first (fallback to others if the local worker is full).

Detection named Sources[0] / the lowest server id; execute then
SyncAndSelectBestReplica and could switch the copy source to another
rack. After sync, if a replica on this machine has a complete file
count, copy from that URL so affinity and pull stay on one host.

* feat: pin scheduler jobs to replica-host workers until load K

Reserve prefers the least-loaded replica-host worker and waits while
that load is below 5 instead of spilling to a free remote worker.
K=0 restores immediate spill. Waterfill uses reservation load so four
idle preferred workers each get a job.

* feat: park scheduled jobs on per-worker admin queues

Assign a detection batch to the least-loaded replica-host worker in
one pass, then let ExecutionConcurrency goroutines pop a home-runnable
job or steal when that home queue reaches K. Dispatch no longer holds
a job in reserve-backoff, so a free worker is not blocked by another
home's pin. Tracked jobs stay pending/queued and record the home
worker for the admin UI.

* fix: rehome queued jobs when the home worker dies

A live home still pins below K. A home missing from live executors
is stolen immediately onto a free worker so a short orphaned queue
does not sit until the dispatch window ends.

* feat: wait before stealing a dead home worker queue

Orphaned queues are held for 30s so a worker reconnect blink does
not dump jobs onto other machines. After the grace, steal without K
as before. Zero disables the wait. A home that comes back during
grace keeps its queue.

* fix: late-bind EC from to worker hostname

After replicas are consistent (equal FileCount), rebind encode source
to a volume server on the same hostname as worker -address. Any port
on that host is local. Diverged FileCount still uses the max replica.

* feat: assign homeless jobs to global FIFO

Jobs whose replica hostname has no registered worker skip pin and orphan grace.
Free workers take own home, then steal at K/orphan, then leftover FIFO.

* fix: take homeless FIFO before steal for no-home workers

Workers without a replica-host match take leftover first; steal (K/orphan)
only when FIFO is empty. Home workers keep own-queue, steal, then leftover.

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Co-authored-by: Chepurnov Simon <195125934+CHEPURNOV-S-S@users.noreply.github.com>
2026-10-13 05:31:34 +08:00
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