Empty path list in Java client

dormando dormando at rydia.net
Wed Jan 9 17:42:59 UTC 2008

By default the get_paths command will make a HEAD request to each path 
before it returns them. I don't know how to use the guba client offhand, 
but if you pass noverify=1 and you _do_ get paths back, you'll have some 
potential weirdness there.

I would advocate running get_paths with noverify=1, then manually trying 
to hit the urls it passes back.

If the files aren't there at all you'll have to give us more information 
about your setup, or else we'd be shooting in the dark.


David Sheldon wrote:
> I'm using the com.guba java client for mogilefs, and we're using it on
> our live site. Twice since we deployed (last week), it seems that
> getPaths() has returned an empty list of locations for a file that is
> definitely there[1].
> Looking through the code for the client and the server I can't see how
> this could happen. Has anyone seen this before, or have any ideas on
> how I can reproduce it/track it down further?
> David
> [1] We get the exception
> "com.guba.mogilefs.StorageCommunicationException: unable to retrieve
> file with key 'xxxxx' from any storage node: " (there not being any
> list of paths at the end means that getPaths() returned an empty array
> rather than null.

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