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sched: Fix error handling in assignWorker

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This commit is contained in:
Łukasz Magiera 2020-04-27 22:59:17 +02:00
parent d399312786
commit d57877af31
1 changed files with 21 additions and 1 deletions
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22
sched.go
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@ -247,8 +247,28 @@ func (sh *scheduler) assignWorker(wid WorkerID, w *workerHandle, req *workerRequ
go func() {
err := req.prepare(req.ctx, w.w)
sh.workersLk.Lock()
if err != nil {
w.preparing.free(w.info.Resources, needRes)
sh.workersLk.Unlock()
select {
case sh.workerFree <- wid:
case <-sh.closing:
log.Warnf("scheduler closed while sending response (prepare error: %+v)", err)
}
select {
case req.ret <- workerResponse{err: err}:
case <-req.ctx.Done():
log.Warnf("request got cancelled before we could respond (prepare error: %+v)", err)
case <-sh.closing:
log.Warnf("scheduler closed while sending response (prepare error: %+v)", err)
}
return
}
err = w.active.withResources(sh.spt, wid, w.info.Resources, needRes, &sh.workersLk, func() error {
w.preparing.free(w.info.Resources, needRes)
sh.workersLk.Unlock()