mirror of
https://github.com/minio/minio.git
synced 2025-10-31 08:11:19 +01:00
114 lines
3.8 KiB
Go
114 lines
3.8 KiB
Go
// 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 (
|
|
"context"
|
|
"time"
|
|
)
|
|
|
|
type rebalPoolProgress struct {
|
|
NumObjects uint64 `json:"objects"`
|
|
NumVersions uint64 `json:"versions"`
|
|
Bytes uint64 `json:"bytes"`
|
|
Bucket string `json:"bucket"`
|
|
Object string `json:"object"`
|
|
Elapsed time.Duration `json:"elapsed"`
|
|
ETA time.Duration `json:"eta"`
|
|
}
|
|
|
|
type rebalancePoolStatus struct {
|
|
ID int `json:"id"` // Pool index (zero-based)
|
|
Status string `json:"status"` // Active if rebalance is running, empty otherwise
|
|
Used float64 `json:"used"` // Percentage used space
|
|
Progress rebalPoolProgress `json:"progress,omitempty"` // is empty when rebalance is not running
|
|
}
|
|
|
|
// rebalanceAdminStatus holds rebalance status related information exported to mc, console, etc.
|
|
type rebalanceAdminStatus struct {
|
|
ID string // identifies the ongoing rebalance operation by a uuid
|
|
Pools []rebalancePoolStatus `json:"pools"` // contains all pools, including inactive
|
|
StoppedAt time.Time `json:"stoppedAt,omitempty"`
|
|
}
|
|
|
|
func rebalanceStatus(ctx context.Context, z *erasureServerPools) (r rebalanceAdminStatus, err error) {
|
|
// Load latest rebalance status
|
|
meta := &rebalanceMeta{}
|
|
err = meta.load(ctx, z.serverPools[0])
|
|
if err != nil {
|
|
return r, err
|
|
}
|
|
|
|
// Compute disk usage percentage
|
|
si := z.StorageInfo(ctx, true)
|
|
diskStats := make([]struct {
|
|
AvailableSpace uint64
|
|
TotalSpace uint64
|
|
}, len(z.serverPools))
|
|
for _, disk := range si.Disks {
|
|
// Ignore invalid.
|
|
if disk.PoolIndex < 0 || len(diskStats) <= disk.PoolIndex {
|
|
// https://github.com/minio/minio/issues/16500
|
|
continue
|
|
}
|
|
diskStats[disk.PoolIndex].AvailableSpace += disk.AvailableSpace
|
|
diskStats[disk.PoolIndex].TotalSpace += disk.TotalSpace
|
|
}
|
|
|
|
stopTime := meta.StoppedAt
|
|
r = rebalanceAdminStatus{
|
|
ID: meta.ID,
|
|
StoppedAt: meta.StoppedAt,
|
|
Pools: make([]rebalancePoolStatus, len(meta.PoolStats)),
|
|
}
|
|
for i, ps := range meta.PoolStats {
|
|
r.Pools[i] = rebalancePoolStatus{
|
|
ID: i,
|
|
Status: ps.Info.Status.String(),
|
|
Used: float64(diskStats[i].TotalSpace-diskStats[i].AvailableSpace) / float64(diskStats[i].TotalSpace),
|
|
}
|
|
if !ps.Participating {
|
|
continue
|
|
}
|
|
// for participating pools, total bytes to be rebalanced by this pool is given by,
|
|
// pf_c = (f_i + x)/c_i,
|
|
// pf_c - percentage free space across pools, f_i - ith pool's free space, c_i - ith pool's capacity
|
|
// i.e. x = c_i*pfc -f_i
|
|
totalBytesToRebal := float64(ps.InitCapacity)*meta.PercentFreeGoal - float64(ps.InitFreeSpace)
|
|
elapsed := time.Since(ps.Info.StartTime)
|
|
eta := time.Duration(totalBytesToRebal * float64(elapsed) / float64(ps.Bytes))
|
|
if !ps.Info.EndTime.IsZero() {
|
|
stopTime = ps.Info.EndTime
|
|
}
|
|
|
|
if !stopTime.IsZero() { // rebalance is stopped or completed
|
|
elapsed = stopTime.Sub(ps.Info.StartTime)
|
|
eta = 0
|
|
}
|
|
|
|
r.Pools[i].Progress = rebalPoolProgress{
|
|
NumObjects: ps.NumObjects,
|
|
NumVersions: ps.NumVersions,
|
|
Bytes: ps.Bytes,
|
|
Elapsed: elapsed,
|
|
ETA: eta,
|
|
}
|
|
}
|
|
return r, nil
|
|
}
|