/
admin-rebalance-status.go
126 lines (110 loc) · 3.56 KB
/
admin-rebalance-status.go
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// Copyright (c) 2022 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 (
"encoding/json"
"fmt"
"strings"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/fatih/color"
"github.com/minio/cli"
"github.com/minio/mc/pkg/probe"
"github.com/minio/pkg/v2/console"
)
var adminRebalanceStatusCmd = cli.Command{
Name: "status",
Usage: "summarize an ongoing rebalance operation",
Action: mainAdminRebalanceStatus,
OnUsageError: onUsageError,
Before: setGlobalsFromContext,
Flags: globalFlags,
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} ALIAS
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
1. Summarize ongoing rebalance on a MinIO deployment with alias myminio
{{.Prompt}} {{.HelpName}} myminio
`,
}
func mainAdminRebalanceStatus(ctx *cli.Context) error {
if len(ctx.Args()) != 1 {
showCommandHelpAndExit(ctx, 1)
}
args := ctx.Args()
aliasedURL := args.Get(0)
client, err := newAdminClient(aliasedURL)
if err != nil {
fatalIf(err.Trace(aliasedURL), "Unable to initialize admin client")
return err.ToGoError()
}
rInfo, e := client.RebalanceStatus(globalContext)
fatalIf(probe.NewError(e), "Unable to get rebalance status")
if globalJSON {
b, e := json.Marshal(rInfo)
fatalIf(probe.NewError(e), "Unable to marshal json")
console.Println(string(b))
return nil
}
console.Println("Per-pool usage:")
// col-headers
colHeaders := make([]string, len(rInfo.Pools))
for i := range rInfo.Pools {
colHeaders[i] = fmt.Sprintf("Pool-%d", i)
}
var (
totalBytes, totalObjects, totalVersions uint64
maxElapsed, maxETA time.Duration
)
row := make([]string, len(rInfo.Pools))
for idx, pool := range rInfo.Pools {
statusStr := fmt.Sprintf("%.2f%%", pool.Used)
if pool.Status == "Started" {
statusStr += " *" // indicating rebalance is in progress in this pool
}
row[idx] = statusStr
// For summary values
totalBytes += pool.Progress.Bytes
totalObjects += pool.Progress.NumObjects
totalVersions += pool.Progress.NumVersions
if maxElapsed == 0 || maxElapsed < pool.Progress.Elapsed {
maxElapsed = pool.Progress.Elapsed
}
if maxETA == 0 || maxETA < pool.Progress.ETA {
maxETA = pool.Progress.ETA
}
}
dspOrder := []col{colGreen, colGrey}
var printColors []*color.Color
for _, c := range dspOrder {
printColors = append(printColors, getPrintCol(c))
}
alignRights := make([]bool, len(rInfo.Pools))
tbl := console.NewTable(printColors, alignRights, 0)
e = tbl.DisplayTable([][]string{colHeaders, row})
fatalIf(probe.NewError(e), "Unable to render table view")
var b strings.Builder
fmt.Fprintf(&b, "Summary: \n")
fmt.Fprintf(&b, "Data: %s (%d objects, %d versions) \n", humanize.IBytes(totalBytes), totalObjects, totalVersions)
fmt.Fprintf(&b, "Time: %s (%s to completion)", maxElapsed, maxETA)
console.Println(b.String())
return nil
}