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9f19b5660f
Add remotes to rafthttp, who help newly joined members catch up the progress of the cluster. It supports basic message sending to remote, and has no stream connection for simplicity. remotes will not be used after the latest peers have been added into rafthttp.
49 lines
1.3 KiB
Go
49 lines
1.3 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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"log"
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"net/http"
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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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type remote struct {
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id types.ID
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pipeline *pipeline
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}
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func startRemote(tr http.RoundTripper, urls types.URLs, local, to, cid types.ID, r Raft, errorc chan error) *remote {
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picker := newURLPicker(urls)
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return &remote{
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id: to,
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pipeline: newPipeline(tr, picker, to, cid, nil, r, errorc),
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}
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}
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func (g *remote) Send(m raftpb.Message) {
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select {
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case g.pipeline.msgc <- m:
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default:
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log.Printf("remote: dropping %s to %s since pipeline with %d-size buffer is blocked", m.Type, g.id, pipelineBufSize)
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}
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}
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func (g *remote) Stop() {
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g.pipeline.stop()
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}
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