[Gluster-users] GlusterFS: problem with direct-io-mode

[Bryan Whitehead]

Search the archives but I'm pretty sure directio doesn't work over fuse
without some patches.

On Fri, Feb 10, 2012 at 5:11 AM, Ionescu, A. <a.ionescu at student.vu.nl>wrote:

>  Dear GlusterFS users,
>
> We are trying to use some C programs that rely on direct I/O operations on
> files residing on a GlusterFS volume composed of ext4 bricks.
>
> It is our understanding that this should be possible if we specify the
> *direct-io-mode=enable*    option when mounting the volume, but for some
> reason we get the following error message when calling the   *open()*
> system call with the * O_DIRECT* flag:*    "Invalid arguments"*.
>
> The same system call succeeds on the local file system.
>
>
> System info:
> CentOS 6.2
> GlusterFS 3.2.5
>
> gluster volume info:
>
> Volume Name: rdmaVol
> Type: Distribute
> Status: Started
> Number of Bricks: 2
> Transport-type: rdma
> Bricks:
> Brick1: node01:/home/gfs
> Brick2: node02:/home/gfs
>
>  mount command:
>
> $ mount  -t  glusterfs  -o  direct-io-mode=enable  node01:/rdmaVol
> /mnt/gfs
>
>  We would really appreciate your help and suggestions! Please let us know
> if you need any additional information.
>
> _______________________________________________
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> Gluster-users at gluster.org
> http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
>
>
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