[Gluster-users] GlusterFS: problem with direct-io-mode
driver at megahappy.net
Tue Feb 14 21:09:39 UTC 2012
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
> Brick1: node01:/home/gfs
> Brick2: node02:/home/gfs
> mount command:
> $ mount -t glusterfs -o direct-io-mode=enable node01:/rdmaVol
> We would really appreciate your help and suggestions! Please let us know
> if you need any additional information.
> Gluster-users mailing list
> Gluster-users at gluster.org
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