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mc/cmd/support-top-api.go

130 lines
3.4 KiB
Go

// Copyright (c) 2015-2023 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 cmd
import (
"context"
tea "github.com/charmbracelet/bubbletea"
"github.com/minio/cli"
"github.com/minio/madmin-go/v3"
"github.com/minio/mc/pkg/probe"
)
var supportTopAPIFlags = []cli.Flag{
cli.StringSliceFlag{
Name: "name",
Usage: "summarize current calls for matching API name",
},
cli.StringSliceFlag{
Name: "path",
Usage: "summarize current API calls only on matching path",
},
cli.StringSliceFlag{
Name: "node",
Usage: "summarize current API calls only on matching servers",
},
cli.BoolFlag{
Name: "errors, e",
Usage: "summarize current API calls throwing only errors",
},
}
var supportTopAPICmd = cli.Command{
Name: "api",
Usage: "summarize API events on MinIO server in real-time",
Action: mainSupportTopAPI,
OnUsageError: onUsageError,
Before: setGlobalsFromContext,
Flags: append(supportTopAPIFlags, supportGlobalFlags...),
HideHelpCommand: true,
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} [FLAGS] TARGET
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
1. Display current in-progress all S3 API calls.
{{.Prompt}} {{.HelpName}} myminio/
2. Display current in-progress all 's3.PutObject' API calls.
{{.Prompt}} {{.HelpName}} --name s3.PutObject myminio/
`,
}
// checkSupportTopAPISyntax - validate all the passed arguments
func checkSupportTopAPISyntax(ctx *cli.Context) {
if len(ctx.Args()) == 0 || len(ctx.Args()) > 1 {
showCommandHelpAndExit(ctx, 1) // last argument is exit code
}
}
func mainSupportTopAPI(ctx *cli.Context) error {
checkSupportTopAPISyntax(ctx)
aliasedURL := ctx.Args().Get(0)
alias, _ := url2Alias(aliasedURL)
validateClusterRegistered(alias, false)
// Create a new MinIO Admin Client
client, err := newAdminClient(aliasedURL)
if err != nil {
fatalIf(err.Trace(aliasedURL), "Unable to initialize admin client.")
return nil
}
ctxt, cancel := context.WithCancel(globalContext)
defer cancel()
opts, e := tracingOpts(ctx, ctx.StringSlice("call"))
fatalIf(probe.NewError(e), "Unable to start tracing")
mopts := matchingOpts(ctx)
// Start listening on all trace activity.
traceCh := client.ServiceTrace(ctxt, opts)
filteredTraces := make(chan madmin.ServiceTraceInfo, 1)
ui := tea.NewProgram(initTraceStatsUI(false, 30, filteredTraces))
var te error
go func() {
for t := range traceCh {
if t.Err != nil {
te = t.Err
ui.Kill()
return
}
if mopts.matches(t) {
filteredTraces <- t
}
}
}()
if _, e := ui.Run(); e != nil {
cancel()
if te != nil {
e = te
}
fatalIf(probe.NewError(e).Trace(aliasedURL), "Unable to fetch http trace statistics")
}
return nil
}