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//
// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
package madmin
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"time"
)
// ProfilerType represents the profiler type
// passed to the profiler subsystem.
type ProfilerType string
// Different supported profiler types.
const (
ProfilerCPU ProfilerType = "cpu" // represents CPU profiler type
ProfilerCPUIO ProfilerType = "cpuio" // represents CPU with IO (fgprof) profiler type
ProfilerMEM ProfilerType = "mem" // represents MEM profiler type
ProfilerBlock ProfilerType = "block" // represents Block profiler type
ProfilerMutex ProfilerType = "mutex" // represents Mutex profiler type
ProfilerTrace ProfilerType = "trace" // represents Trace profiler type
ProfilerThreads ProfilerType = "threads" // represents ThreadCreate profiler type
ProfilerGoroutines ProfilerType = "goroutines" // represents Goroutine dumps.
ProfilerRuntime ProfilerType = "runtime" // Include runtime metrics
)
// StartProfilingResult holds the result of starting
// profiler result in a given node.
type StartProfilingResult struct {
NodeName string `json:"nodeName"`
Success bool `json:"success"`
Error string `json:"error"`
}
// StartProfiling makes an admin call to remotely start profiling on a
// standalone server or the whole cluster in case of a distributed setup.
//
// Deprecated: use Profile API instead
func (adm *AdminClient) StartProfiling(ctx context.Context, profiler ProfilerType) ([]StartProfilingResult, error) {
v := url.Values{}
v.Set("profilerType", string(profiler))
resp, err := adm.executeMethod(ctx,
http.MethodPost, requestData{
relPath: adminAPIPrefix + "/profiling/start",
queryValues: v,
},
)
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp)
}
jsonResult, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var startResults []StartProfilingResult
err = json.Unmarshal(jsonResult, &startResults)
if err != nil {
return nil, err
}
return startResults, nil
}
// DownloadProfilingData makes an admin call to download profiling data of a
// standalone server or of the whole cluster in case of a distributed setup.
//
// Deprecated: use Profile API instead
func (adm *AdminClient) DownloadProfilingData(ctx context.Context) (io.ReadCloser, error) {
path := fmt.Sprintf(adminAPIPrefix + "/profiling/download")
resp, err := adm.executeMethod(ctx,
http.MethodGet, requestData{
relPath: path,
},
)
if err != nil {
closeResponse(resp)
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp)
}
if resp.Body == nil {
return nil, errors.New("body is nil")
}
return resp.Body, nil
}
// Profile makes an admin call to remotely start profiling on a standalone
// server or the whole cluster in case of a distributed setup for a specified duration.
func (adm *AdminClient) Profile(ctx context.Context, profiler ProfilerType, duration time.Duration) (io.ReadCloser, error) {
v := url.Values{}
v.Set("profilerType", string(profiler))
v.Set("duration", duration.String())
resp, err := adm.executeMethod(ctx,
http.MethodPost, requestData{
relPath: adminAPIPrefix + "/profile",
queryValues: v,
},
)
if err != nil {
closeResponse(resp)
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp)
}
if resp.Body == nil {
return nil, errors.New("body is nil")
}
return resp.Body, nil
}
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