/// <summary>Dynamically remove a volume in the list.</summary>
/// <param name="target">the volume instance to be removed.</param>
private void RemoveVolume(FsVolumeImpl target)
{
while (true)
{
FsVolumeImpl[] curVolumes = volumes.Get();
IList <FsVolumeImpl> volumeList = Lists.NewArrayList(curVolumes);
if (volumeList.Remove(target))
{
if (volumes.CompareAndSet(curVolumes, Sharpen.Collections.ToArray(volumeList, new
FsVolumeImpl[volumeList.Count])))
{
if (blockScanner != null)
{
blockScanner.RemoveVolumeScanner(target);
}
try
{
target.CloseAndWait();
}
catch (IOException e)
{
FsDatasetImpl.Log.Warn("Error occurs when waiting volume to close: " + target, e);
}
target.Shutdown();
FsDatasetImpl.Log.Info("Removed volume: " + target);
break;
}
else
{
if (FsDatasetImpl.Log.IsDebugEnabled())
{
FsDatasetImpl.Log.Debug("The volume list has been changed concurrently, " + "retry to remove volume: "
+ target);
}
}
}
else
{
if (FsDatasetImpl.Log.IsDebugEnabled())
{
FsDatasetImpl.Log.Debug("Volume " + target + " does not exist or is removed by others."
);
}
break;
}
}
}