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worker_mgr.go
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/
worker_mgr.go
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package master
import (
"github.com/qiuqiu1999/crontab/common"
"time"
)
// /cron/workers/
type WorkerMgr struct {
etcd *common.Etcd
}
var G_workerMgr *WorkerMgr
func InitWorkerMgr() error {
var (
etcd *common.Etcd
err error
)
if etcd, err = common.NewEtcd(&common.EtcdConfig{
EtcdEndpoints: G_config.EtcdEndpoints,
EtcdDialTimeout: time.Duration(G_config.EtcdDialTimeout),
}); err != nil {
return err
}
G_workerMgr = &WorkerMgr{
etcd: etcd,
}
return nil
}
// 获取在线worker列表
func (workerMgr *WorkerMgr) ListWorkers() ([]string, error) {
workerArr := make([]string, 0)
// 获取目录下所有Kv
getResp, err := workerMgr.etcd.GetKeyValue(common.JOB_WORKER_DIR)
if err != nil {
return nil, err
}
// 解析每个节点的IP
for _, kv := range getResp.Kvs {
// kv.Key : /cron/workers/xxx.xxx.xxx.xxx
workerIP := common.ExtractWorkerIP(string(kv.Key))
workerArr = append(workerArr, workerIP)
}
return workerArr, nil
}