[Gluster-users] Gluster (2.0.1 -> git) with fuse 2.8 crashes NFS

[Justice London]

It is fuse 2.8.0-pre3 that I tried with the patch you mentioned. When I
tested I used 1M block sizes for a count of 100 and got 1.4MB/s when that
was done over NFS. That was using both standard NFS with direct-io disabled
and unfs3 with direct-io enabled. 

 

The same test of 1M blocks for a count of 100 made for 45MB/s on the same
filesystem, but the local gluster mount instead of over NFS. When using NFS
to one of the same machines as well, but local-disk mount I get around
50MB/s.

 

Justice London
E-mail:  jlondon at lawinfo.com



  _____  

From: harshavardhanacool at gmail.com [mailto:harshavardhanacool at gmail.com] On
Behalf Of Harshavardhana
Sent: Thursday, July 09, 2009 9:22 PM
To: Justice London
Cc: Anand Avati; gluster-users
Subject: Re: [Gluster-users] Gluster (2.0.1 -> git) with fuse 2.8 crashes
NFS

 

Justice,

    which is the libfuse version being used with glusterfs?.  Just wanted to
know what are the metrics you observed while testing?, block size in which
writes/read were measured during testing?.  etc, 

Regards
--
Harshavardhana
Z Research Inc http://www.zresearch.com/



On Thu, Jul 9, 2009 at 11:45 PM, Justice London <jlondon at lawinfo.com> wrote:

Well, mostly it seems to be on the throughput. I haven't really measured for
metadata improvements yet.

Of note, is that NFS is now working, but it appears to be EXTREMELY slow. I
was only able to manage about 1-2MB/s

Justice London
E-mail:  jlondon at lawinfo.com


-----Original Message-----
From: anand.avati at gmail.com [mailto:anand.avati at gmail.com] On Behalf Of
Anand Avati

Sent: Tuesday, July 07, 2009 4:02 PM
To: Justice London
Cc: gluster-users; Harshavardhana
Subject: Re: [Gluster-users] Gluster (2.0.1 -> git) with fuse 2.8 crashes
NFS

> The 2.0.3 release of gluster appears so far to have fixed the crash issue
I
> was experiencing. What was the specific patch that fixed for it I was
> wondering?

It was http://patches.gluster.com/patch/664/. A less ugly fix is lined
up for 2.1


> Great job either way! It appears that with fuse 2.8 and newer kernels that
> gluster absolutely flies. With a replication environment between two
crummy
> testbed machines it's probably about twice as fast as 2.7.4 based fuse!

Just curious, are the observed performance improvements in terms of IO
throughput or metadata latency?

Avati

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05:53:00



 

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05:55:00

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