/
heartbeat.go
93 lines (84 loc) · 1.97 KB
/
heartbeat.go
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package agent
import (
"context"
"io"
"time"
"github.com/xitongsys/guery/logger"
"github.com/xitongsys/guery/pb"
"google.golang.org/grpc"
)
//executor heartbeat
func (self *Agent) SendHeartbeat(stream pb.GueryAgent_SendHeartbeatServer) error {
var location *pb.Location
for {
hb, err := stream.Recv()
if err == nil {
if location == nil {
location = hb.Location
logger.Infof("Add executor %v", location)
}
} else {
if location != nil {
self.Topology.DropExecutorInfo(location)
logger.Infof("Lost executor %v: %v", location, err)
}
if err == io.EOF {
logger.Infof("Lost executor %v: %v", location, err)
return nil
}
if err != nil {
logger.Infof("Lost executor %v: %v", location, err)
return err
}
}
self.Topology.UpdateExecutorInfo(hb)
self.Tasks.UpdateTaskInfo(hb)
self.IsStatusChanged = true
}
}
//master heartbeat
func (self *Agent) Heartbeat() {
for {
if err := self.DoHeartbeat(); err != nil {
time.Sleep(3 * time.Second)
}
}
}
func (self *Agent) DoHeartbeat() error {
grpcConn, err := grpc.Dial(self.MasterAddress, grpc.WithInsecure())
if err != nil {
logger.Errorf("DoHeartBeat failed: %v", err)
return err
}
defer grpcConn.Close()
client := pb.NewGueryMasterClient(grpcConn)
stream, err := client.SendHeartbeat(context.Background())
if err != nil {
return err
}
ticker := time.NewTicker(1 * time.Second)
quickTicker := time.NewTicker(50 * time.Millisecond)
for {
select {
case <-quickTicker.C:
if self.IsStatusChanged {
self.IsStatusChanged = false
if err := self.SendOneHeartbeat(stream); err != nil {
return err
}
}
case <-ticker.C:
if err := self.SendOneHeartbeat(stream); err != nil {
return err
}
}
}
}
func (self *Agent) SendOneHeartbeat(stream pb.GueryMaster_SendHeartbeatClient) error {
hb := self.GetInfo()
if err := stream.Send(hb); err != nil {
logger.Errorf("failed to SendOneHeartbeat: %v, %v", err, hb)
return err
}
return nil
}