Dangling Index with Shared FS Gateway

I found that after restart elasticsearch (0.19.1). I found that the
dangling index on local file system but in the NFS Gateway are still have
the data so Can I recovery it back?

[2013-01-23 00:29:17,314][INFO ][indices.store ] [Plunderer]
[_river] dangling index, exists on local file system, but not in cluster
metadata, scheduling to delete in [2h]
[2013-01-23 00:29:17,315][INFO ][indices.store ] [Plunderer]
[directory] dangling index, exists on local file system, but not in cluster
metadata, scheduling to delete in [2h]
[2013-01-23 00:29:17,315][INFO ][indices.store ] [Plunderer]
[people] dangling index, exists on local file system, but not in cluster
metadata, scheduling to delete in [2h]

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