etcd/rafthttp/peer_status.go

74 lines
1.7 KiB
Go

// Copyright 2015 CoreOS, Inc.
//
// 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 rafthttp
import (
"fmt"
"sync"
"github.com/coreos/etcd/pkg/types"
)
type failureType struct {
source string
action string
}
type peerStatus struct {
id types.ID
mu sync.Mutex // protect active and failureMap
active bool
failureMap map[failureType]string
}
func newPeerStatus(id types.ID) *peerStatus {
return &peerStatus{
id: id,
failureMap: make(map[failureType]string),
}
}
func (s *peerStatus) activate() {
s.mu.Lock()
defer s.mu.Unlock()
if !s.active {
plog.Infof("the connection with %s became active", s.id)
s.active = true
s.failureMap = make(map[failureType]string)
}
}
func (s *peerStatus) deactivate(failure failureType, reason string) {
s.mu.Lock()
defer s.mu.Unlock()
if s.active {
plog.Infof("the connection with %s became inactive", s.id)
s.active = false
}
logline := fmt.Sprintf("failed to %s %s on %s (%s)", failure.action, s.id, failure.source, reason)
if r, ok := s.failureMap[failure]; ok && r == reason {
plog.Debugf(logline)
return
}
s.failureMap[failure] = reason
plog.Errorf(logline)
}
func (s *peerStatus) isActive() bool {
s.mu.Lock()
defer s.mu.Unlock()
return s.active
}