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feat: decommission feature for pools (#14012)

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```
λ mc admin decommission start alias/ http://minio{1...2}/data{1...4}
```

```
λ mc admin decommission status alias/
┌─────┬─────────────────────────────────┬──────────────────────────────────┬────────┐
│ ID  │ Pools                           │ Capacity                         │ Status │
│ 1st │ http://minio{1...2}/data{1...4} │ 439 GiB (used) / 561 GiB (total) │ Active │
│ 2nd │ http://minio{3...4}/data{1...4} │ 329 GiB (used) / 421 GiB (total) │ Active │
└─────┴─────────────────────────────────┴──────────────────────────────────┴────────┘
```

```
λ mc admin decommission status alias/ http://minio{1...2}/data{1...4}
Progress: ===================> [1GiB/sec] [15%] [4TiB/50TiB]
Time Remaining: 4 hours (started 3 hours ago)
```

```
λ mc admin decommission status alias/ http://minio{1...2}/data{1...4}
ERROR: This pool is not scheduled for decommissioning currently.
```

```
λ mc admin decommission cancel alias/
┌─────┬─────────────────────────────────┬──────────────────────────────────┬──────────┐
│ ID  │ Pools                           │ Capacity                         │ Status   │
│ 1st │ http://minio{1...2}/data{1...4} │ 439 GiB (used) / 561 GiB (total) │ Draining │
└─────┴─────────────────────────────────┴──────────────────────────────────┴──────────┘
```

> NOTE: Canceled decommission will not make the pool active again, since we might have
> Potentially partial duplicate content on the other pools, to avoid this scenario be
> very sure to start decommissioning as a planned activity.

```
λ mc admin decommission cancel alias/ http://minio{1...2}/data{1...4}
┌─────┬─────────────────────────────────┬──────────────────────────────────┬────────────────────┐
│ ID  │ Pools                           │ Capacity                         │ Status             │
│ 1st │ http://minio{1...2}/data{1...4} │ 439 GiB (used) / 561 GiB (total) │ Draining(Canceled) │
└─────┴─────────────────────────────────┴──────────────────────────────────┴────────────────────┘
```
This commit is contained in:
Harshavardhana
2022-01-10 09:07:49 -08:00
committed by GitHub
parent dabb058167
commit 76b21de0c6
24 changed files with 2692 additions and 328 deletions
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21
cmd/endpoint.go
View File

@@ -197,14 +197,28 @@ func NewEndpoint(arg string) (ep Endpoint, e error) {
// PoolEndpoints represent endpoints in a given pool
// along with its setCount and setDriveCount.
type PoolEndpoints struct {
// indicates if endpoints are provided in non-ellipses style
Legacy bool
SetCount int
DrivesPerSet int
Endpoints Endpoints
CmdLine string
}
// EndpointServerPools - list of list of endpoints
type EndpointServerPools []PoolEndpoints
// GetPoolIdx return pool index
func (l EndpointServerPools) GetPoolIdx(pool string) int {
for id, ep := range globalEndpoints {
if ep.CmdLine != pool {
continue
}
return id
}
return -1
}
// GetLocalPoolIdx returns the pool which endpoint belongs to locally.
// if ep is remote this code will return -1 poolIndex
func (l EndpointServerPools) GetLocalPoolIdx(ep Endpoint) int {
@@ -220,6 +234,13 @@ func (l EndpointServerPools) GetLocalPoolIdx(ep Endpoint) int {
return -1
}
// Legacy returns 'true' if the MinIO server commandline was
// provided with no ellipses pattern, those are considered
// legacy deployments.
func (l EndpointServerPools) Legacy() bool {
return len(l) == 1 && l[0].Legacy
}
// Add add pool endpoints
func (l *EndpointServerPools) Add(zeps PoolEndpoints) error {
existSet := set.NewStringSet()