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2. when growing volumes, additional preferred "rack" and "dataNode" paraemters are also provided. Previously only "dataCenter" paraemter is provided.
33 lines
740 B
Go
33 lines
740 B
Go
package topology
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import (
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"code.google.com/p/weed-fs/go/storage"
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"code.google.com/p/weed-fs/go/util"
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"encoding/json"
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"errors"
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"net/url"
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)
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type AllocateVolumeResult struct {
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Error string
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}
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func AllocateVolume(dn *DataNode, vid storage.VolumeId, collection string, rp *storage.ReplicaPlacement) error {
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values := make(url.Values)
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values.Add("volume", vid.String())
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values.Add("collection", collection)
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values.Add("replication", rp.String())
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jsonBlob, err := util.Post("http://"+dn.PublicUrl+"/admin/assign_volume", values)
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if err != nil {
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return err
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}
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var ret AllocateVolumeResult
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if err := json.Unmarshal(jsonBlob, &ret); err != nil {
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return err
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}
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if ret.Error != "" {
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return errors.New(ret.Error)
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}
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return nil
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}
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