[Gluster-users] NFS Client issues with Gluster Server 3.6.9

[Jiffin Tony Thottan]

On 05/03/16 07:12, Mark Selby wrote:
> I am trying to use GlusterFS as a general purpose NFS file server. I 
> have tried using the FUSE client but the performance fall off vs NFS 
> is quite large
>
> Both the client and the server are Ubuntu 14.04.
>
> I am using Gluster 3.6.9 because of the FUSE performance issues that 
> have been reported with 3.7.8 (see 
> https://bugzilla.redhat.com/show_bug.cgi?id=1309462)
>
> I am having serious issues with a generic NFS client as shown by the 
> issues below. Basically most FOPs are giving me a Remote I/O error.
>
> I would not think I was 1st person to see these issues - but my Google 
> Fu is not working.
>
> Any and all help would be much appreciated
>
> BTW - These operation against a plain Linux NFS server work fine.
>
>
> root at dc1strg001x /var/log 448# gluster volume status
> Status of volume: backups
> Gluster process Port    Online  Pid
> ------------------------------------------------------------------------------ 
>
> Brick dc1strg001x:/zfspool/glusterfs/backups/data 49152   Y 6462
> Brick dc1strg002x:/zfspool/glusterfs/backups/data 49152   Y 6382
> NFS Server on localhost 2049    Y       6619
> Self-heal Daemon on localhost N/A     Y       6626
> NFS Server on dc1strg002x 2049    Y       6502
> Self-heal Daemon on dc1strg002x N/A     Y       6509
>
>
> root at vc1test001 /root 735# mount -o vers=3 -t nfs dc1strg001x:/backups 
> /mnt/backups_nfs
>
> root at vc1test001 /mnt/backups_nfs 737# dd if=/dev/zero of=testfile 
> bs=16k count=16384
> 16384+0 records in
> 16384+0 records out
> 268435456 bytes (268 MB) copied, 2.46237 s, 109 MB/s
>
> root at vc1test001 /mnt/backups_nfs 738# rm testfile
>
> root at vc1test001 /mnt/backups_nfs 739# dd if=/dev/zero of=testfile 
> bs=16k count=16384
> dd: failed to open ~testfile~: Remote I/O error
>
> root at vc1test001 /var/tmp 743# rsync -av testfile /mnt/backups_nfs/
> sending incremental file list
> testfile
> rsync: mkstemp "/mnt/backups_nfs/.testfile.bzg47C" failed: Remote I/O 
> error (121)
>
> sent 1,074,004,056 bytes  received 121 bytes 165,231,411.85 bytes/sec
> total size is 1,073,741,824  speedup is 1.00
> rsync error: some files/attrs were not transferred (see previous 
> errors) (code 23) at main.c(1183) [sender=3.1.0]
>

Can you please provide the volume configuration(gluster vol info )
and log file for nfs server which u mounted (/var/log/glusterfs)

--
Jiffin
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