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https://github.com/etcd-io/etcd.git
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51548acb4f
The patch decreases the allocs when sending one AppEntry in msgappv2 stream from 30 to 9. This helps reduce CPU load when etcd is under high write load.
124 lines
2.7 KiB
Go
124 lines
2.7 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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"bytes"
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"reflect"
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"testing"
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"github.com/coreos/etcd/etcdserver/stats"
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"github.com/coreos/etcd/pkg/types"
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"github.com/coreos/etcd/raft/raftpb"
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)
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func TestMsgAppV2(t *testing.T) {
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tests := []raftpb.Message{
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linkHeartbeatMessage,
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{
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Type: raftpb.MsgApp,
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From: 1,
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To: 2,
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Term: 1,
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LogTerm: 1,
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Index: 0,
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Entries: []raftpb.Entry{
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{Term: 1, Index: 1, Data: []byte("some data")},
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{Term: 1, Index: 2, Data: []byte("some data")},
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{Term: 1, Index: 3, Data: []byte("some data")},
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},
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},
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// consecutive MsgApp
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{
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Type: raftpb.MsgApp,
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From: 1,
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To: 2,
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Term: 1,
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LogTerm: 1,
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Index: 3,
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Entries: []raftpb.Entry{
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{Term: 1, Index: 4, Data: []byte("some data")},
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},
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},
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linkHeartbeatMessage,
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// consecutive MsgApp after linkHeartbeatMessage
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{
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Type: raftpb.MsgApp,
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From: 1,
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To: 2,
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Term: 1,
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LogTerm: 1,
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Index: 4,
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Entries: []raftpb.Entry{
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{Term: 1, Index: 5, Data: []byte("some data")},
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},
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},
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// MsgApp with higher term
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{
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Type: raftpb.MsgApp,
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From: 1,
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To: 2,
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Term: 3,
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LogTerm: 1,
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Index: 5,
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Entries: []raftpb.Entry{
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{Term: 3, Index: 6, Data: []byte("some data")},
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},
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},
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linkHeartbeatMessage,
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// consecutive MsgApp
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{
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Type: raftpb.MsgApp,
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From: 1,
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To: 2,
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Term: 3,
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LogTerm: 2,
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Index: 6,
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Entries: []raftpb.Entry{
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{Term: 3, Index: 7, Data: []byte("some data")},
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},
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},
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// consecutive empty MsgApp
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{
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Type: raftpb.MsgApp,
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From: 1,
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To: 2,
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Term: 3,
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LogTerm: 2,
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Index: 7,
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Entries: nil,
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},
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linkHeartbeatMessage,
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}
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b := &bytes.Buffer{}
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enc := newMsgAppV2Encoder(b, &stats.FollowerStats{})
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dec := newMsgAppV2Decoder(b, types.ID(2), types.ID(1))
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for i, tt := range tests {
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if err := enc.encode(tt); err != nil {
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t.Errorf("#%d: unexpected encode message error: %v", i, err)
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continue
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}
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m, err := dec.decode()
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if err != nil {
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t.Errorf("#%d: unexpected decode message error: %v", i, err)
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continue
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}
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if !reflect.DeepEqual(m, tt) {
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t.Errorf("#%d: message = %+v, want %+v", i, m, tt)
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}
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}
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}
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