khenaidoo | 2672188 | 2021-08-11 17:42:52 -0400 | [diff] [blame] | 1 | // Copyright 2015 The etcd Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package rafthttp |
| 16 | |
| 17 | import ( |
| 18 | "github.com/coreos/etcd/pkg/types" |
| 19 | "github.com/coreos/etcd/raft/raftpb" |
| 20 | ) |
| 21 | |
| 22 | type remote struct { |
| 23 | id types.ID |
| 24 | status *peerStatus |
| 25 | pipeline *pipeline |
| 26 | } |
| 27 | |
| 28 | func startRemote(tr *Transport, urls types.URLs, id types.ID) *remote { |
| 29 | picker := newURLPicker(urls) |
| 30 | status := newPeerStatus(id) |
| 31 | pipeline := &pipeline{ |
| 32 | peerID: id, |
| 33 | tr: tr, |
| 34 | picker: picker, |
| 35 | status: status, |
| 36 | raft: tr.Raft, |
| 37 | errorc: tr.ErrorC, |
| 38 | } |
| 39 | pipeline.start() |
| 40 | |
| 41 | return &remote{ |
| 42 | id: id, |
| 43 | status: status, |
| 44 | pipeline: pipeline, |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | func (g *remote) send(m raftpb.Message) { |
| 49 | select { |
| 50 | case g.pipeline.msgc <- m: |
| 51 | default: |
| 52 | if g.status.isActive() { |
| 53 | plog.MergeWarningf("dropped internal raft message to %s since sending buffer is full (bad/overloaded network)", g.id) |
| 54 | } |
| 55 | plog.Debugf("dropped %s to %s since sending buffer is full", m.Type, g.id) |
| 56 | sentFailures.WithLabelValues(types.ID(m.To).String()).Inc() |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | func (g *remote) stop() { |
| 61 | g.pipeline.stop() |
| 62 | } |
| 63 | |
| 64 | func (g *remote) Pause() { |
| 65 | g.stop() |
| 66 | } |
| 67 | |
| 68 | func (g *remote) Resume() { |
| 69 | g.pipeline.start() |
| 70 | } |