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minio/pkg/xl/management.go

82 lines
2.1 KiB

/*
* Minio Cloud Storage, (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package xl
import (
"github.com/minio/minio/pkg/probe"
"github.com/minio/minio/pkg/xl/block"
)
// Info - return info about xl configuration
func (xl API) Info() (nodeDiskMap map[string][]string, err *probe.Error) {
nodeDiskMap = make(map[string][]string)
for nodeName, n := range xl.nodes {
disks, err := n.ListDisks()
if err != nil {
return nil, err.Trace()
}
diskList := make([]string, len(disks))
for diskOrder, disk := range disks {
diskList[diskOrder] = disk.GetPath()
}
nodeDiskMap[nodeName] = diskList
}
return nodeDiskMap, nil
}
// AttachNode - attach node
func (xl API) AttachNode(hostname string, disks []string) *probe.Error {
if hostname == "" || len(disks) == 0 {
return probe.NewError(InvalidArgument{})
}
n, err := newNode(hostname)
if err != nil {
return err.Trace()
}
xl.nodes[hostname] = n
for i, d := range disks {
newDisk, err := block.New(d)
if err != nil {
continue
}
if err := newDisk.MakeDir(xl.config.XLName); err != nil {
return err.Trace()
}
if err := n.AttachDisk(newDisk, i); err != nil {
return err.Trace()
}
}
return nil
}
// DetachNode - detach node
func (xl API) DetachNode(hostname string) *probe.Error {
delete(xl.nodes, hostname)
return nil
}
// Rebalance - rebalance an existing xl with new disks and nodes
func (xl API) Rebalance() *probe.Error {
return probe.NewError(APINotImplemented{API: "management.Rebalance"})
}
// Heal - heal your xls
func (xl API) Heal() *probe.Error {
// TODO handle data heal
return xl.healBuckets()
}