File locking while using NFS

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Hi,

Scenario - 3 servers each with 1 brick of storage on their local disk.  These 3 bricks make up a distributed Gluster volume.  This volume is mounted using the fuse client on all 3 servers so they can all concurrently access the files stored on the shared filesystem.

As I understand it, Gluster will handle file locking and concurrency across the 3 nodes.  Is that true?

Does gluster also handle the file locking if each of the 3 servers mounts the gluster volume as NFS (mount -t localhost:/blah /blah) or is locking then handled by each NFS daemon so it would not lock across the different servers?

I may not be explaining this very well but I'd welcome your input!!

Thanks

Chris

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