pixiu/pkg/cluster/healthcheck/tcp.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 healthcheck

import (
	"net"
	"time"
)

import (
	"github.com/apache/dubbo-go-pixiu/pixiu/pkg/logger"
)

type TCPChecker struct {
	addr    string
	timeout time.Duration
}

func (s *TCPChecker) CheckHealth() bool {
	conn, err := net.DialTimeout("tcp", s.addr, s.timeout)
	if err != nil {
		logger.Infof("[health check] tcp checker for host %s error: %v", s.addr, err)
		return false
	}
	conn.Close()
	return true
}

func (s *TCPChecker) OnTimeout() {}