tidb optimize_trace 源码
tidb optimize_trace 代码
文件路径：/server/optimize_trace.go
// Copyright 2021 PingCAP, 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 server
import (
"fmt"
"net/http"
"path/filepath"
"github.com/gorilla/mux"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/domain"
"github.com/pingcap/tidb/domain/infosync"
"github.com/pingcap/tidb/util"
)
// OptimizeTraceHandler serve http
type OptimizeTraceHandler struct {
infoGetter *infosync.InfoSyncer
address string
statusPort uint
}
func (s *Server) newOptimizeTraceHandler() *OptimizeTraceHandler {
cfg := config.GetGlobalConfig()
oth := &OptimizeTraceHandler{
address: cfg.AdvertiseAddress,
statusPort: cfg.Status.StatusPort,
}
if s.dom != nil && s.dom.InfoSyncer() != nil {
oth.infoGetter = s.dom.InfoSyncer()
}
return oth
}
func (oth OptimizeTraceHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
params := mux.Vars(req)
name := params[pFileName]
handler := downloadFileHandler{
filePath: filepath.Join(domain.GetOptimizerTraceDirName(), name),
fileName: name,
infoGetter: oth.infoGetter,
address: oth.address,
statusPort: oth.statusPort,
urlPath: fmt.Sprintf("optimize_trace/dump/%s", name),
downloadedFilename: "optimize_trace",
scheme: util.InternalHTTPSchema(),
}
handleDownloadFile(handler, w, req)
}
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