Re: [Gluster-users] File locking...

[Joe Julian]

Yes, the fuse client is fully posix.

On June 2, 2017 5:12:34 AM PDT, Krist van Besien  wrote:
>Hi all,
>
>A few questions.
>
>- Is POSIX locking enabled when using the native client? I would assume
>yes.
>- What other settings/tuneables exist when it comes to file locking?
>
>Krist
>
>
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>Vriendelijke Groet |  Best Regards | Freundliche Grüße | Cordialement
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>Krist van Besien | Senior Architect | Red Hat EMEA Cloud Practice |
>RHCE |
>RHCSA Open Stack
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[Gluster-users] File locking...

[Krist van Besien]

Hi all,

A few questions.

- Is POSIX locking enabled when using the native client? I would assume yes.
- What other settings/tuneables exist when it comes to file locking?

Krist


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[Gluster-users] File locking while using NFS

[Chris Clarke]

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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Re: [Gluster-users] File locking while using NFS

[Vijay Bellur]

On 01/09/2014 09:06 PM, Chris Clarke wrote:

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?


All locking in glusterfs is handled by the locks translator in the brick 
processes. No locking is local to a gluster NFS server.


-Vijay

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