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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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22
cmd/peer-rest-server.go
View File

@@ -1023,6 +1023,27 @@ func (s *peerRESTServer) BackgroundHealStatusHandler(w http.ResponseWriter, r *h
logger.LogIf(ctx, gob.NewEncoder(w).Encode(state))
}
func (s *peerRESTServer) ReloadPoolMetaHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("invalid request"))
return
}
objAPI := newObjectLayerFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
pools, ok := objAPI.(*erasureServerPools)
if !ok {
return
}
if err := pools.ReloadPoolMeta(r.Context()); err != nil {
s.writeErrorResponse(w, err)
return
}
}
func (s *peerRESTServer) LoadTransitionTierConfigHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("invalid request"))
@@ -1353,4 +1374,5 @@ func registerPeerRESTHandlers(router *mux.Router) {
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLoadTransitionTierConfig).HandlerFunc(httpTraceHdrs(server.LoadTransitionTierConfigHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodSpeedtest).HandlerFunc(httpTraceHdrs(server.SpeedtestHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodReloadSiteReplicationConfig).HandlerFunc(httpTraceHdrs(server.ReloadSiteReplicationConfigHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodReloadPoolMeta).HandlerFunc(httpTraceHdrs(server.ReloadPoolMetaHandler))
}