mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
8f6bf029f8
It specifies request timeout error possibly caused by connection lost, and print out better log for user to understand. It handles two cases: 1. the leader cannot connect to majority of cluster. 2. the connection between follower and leader is down for a while, and it losts proposals. log format: ``` 20:04:19 etcd3 | 2015-08-25 20:04:19.368126 E | etcdhttp: etcdserver: request timed out, possibly due to connection lost 20:04:19 etcd3 | 2015-08-25 20:04:19.368227 E | etcdhttp: etcdserver: request timed out, possibly due to connection lost ```
78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
// Copyright 2015 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rafthttp
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import (
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"fmt"
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"sync"
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"time"
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"github.com/coreos/etcd/pkg/types"
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)
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type failureType struct {
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source string
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action string
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}
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type peerStatus struct {
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id types.ID
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mu sync.Mutex // protect variables below
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active bool
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failureMap map[failureType]string
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activeSince time.Time
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}
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func newPeerStatus(id types.ID) *peerStatus {
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return &peerStatus{
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id: id,
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failureMap: make(map[failureType]string),
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}
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}
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func (s *peerStatus) activate() {
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s.mu.Lock()
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defer s.mu.Unlock()
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if !s.active {
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plog.Infof("the connection with %s became active", s.id)
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s.active = true
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s.activeSince = time.Now()
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s.failureMap = make(map[failureType]string)
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}
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}
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func (s *peerStatus) deactivate(failure failureType, reason string) {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.active {
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plog.Infof("the connection with %s became inactive", s.id)
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s.active = false
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s.activeSince = time.Time{}
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}
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logline := fmt.Sprintf("failed to %s %s on %s (%s)", failure.action, s.id, failure.source, reason)
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if r, ok := s.failureMap[failure]; ok && r == reason {
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plog.Debugf(logline)
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return
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}
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s.failureMap[failure] = reason
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plog.Errorf(logline)
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}
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func (s *peerStatus) isActive() bool {
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s.mu.Lock()
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defer s.mu.Unlock()
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return s.active
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}
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