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avoid empty data nodes

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This commit is contained in:
Chris Lu 2013-03-20 05:12:55 -07:00
parent 0c75e0438e
commit 9da3ea35ac
1 changed files with 1 additions and 1 deletions
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2
go/topology/topology.go
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@ -105,7 +105,7 @@ func (t *Topology) PickForWrite(repType storage.ReplicationType, count int) (str
t.replicaType2VolumeLayout[replicationTypeIndex] = NewVolumeLayout(repType, t.volumeSizeLimit, t.pulse)
}
vid, count, datanodes, err := t.replicaType2VolumeLayout[replicationTypeIndex].PickForWrite(count)
if err != nil {
if err != nil || datanodes.Length() == 0 {
return "", 0, nil, errors.New("No writable volumes avalable!")
}
fileId, count := t.sequence.NextFileId(count)