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workers_watchdog.go
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/
workers_watchdog.go
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// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package appsrv
import (
"time"
"yunion.io/x/log"
)
const (
WATCHDOG_SLEEP_SECONDS = 30
)
var (
busyWorkers map[*SWorkerManager]int
exitFlag bool
)
func init() {
busyWorkers = make(map[*SWorkerManager]int)
watchdog()
}
func watchdog() {
do_worker_watchdog()
time.AfterFunc(time.Second*WATCHDOG_SLEEP_SECONDS, watchdog)
}
func do_worker_watchdog() {
for _, w := range workerManagers {
stats := w.getState()
busy := stats.IsBusy()
if busy {
if _, ok := busyWorkers[w]; ok {
busyWorkers[w] += 1
} else {
busyWorkers[w] = 1
}
} else {
if _, ok := busyWorkers[w]; ok {
delete(busyWorkers, w)
}
}
}
if len(busyWorkers) > 0 {
for w, k := range busyWorkers {
if k > 1 {
log.Warningf("WorkerManager %s has been busy for %d cycles...", w.name, k)
}
}
} else {
if exitFlag {
log.Fatalln("System is idle, no worker is busy, exitFlag is set, to exit ...")
}
}
}
func SetExitFlag() {
exitFlag = true
}