Thanks Gonzalo. While we're gathering this info, are you running GigE?
We'll want to know, once things are working correctly, to know if
performance is in-line.
Rob
Gonzalo Soto Subiabre wrote:
Hello.
I'm using:
- pvfs-2.6.3.
- kernel 2.6.9-5.EL.
- i686 CPU architecture and
- Ethernet TCP/IP.
On Nov 4, 2007 7:46 PM, Rob Ross < [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Hi,
Can you tell us what version of PVFS, what kernel, what CPU
architecture, what network you're using?
Thanks,
Rob
Gonzalo Soto Subiabre wrote:
> Hi to everyone.
>
> This is my first post and regretfully is to ask for help.
> I'm doing a performance evaluation of Distributed Parallel
Filesystems,
> using iozone. The filesystems tested are Lustre, PVFS2 and GlusterFS.
> This evaluation has an aim: to choose a parallel filesystem for a
video
> streamig system storage server.
> But I've a problem; when iozone test is running over pvfs2 it
fails at a
> point where the file size is 2 GB and the Record Lenght 64 Kb.
>
>
> My tested is this:
>
> [EMAIL PROTECTED] ~]# pvfs2-statfs -h -m /mnt/pvfs2/
> aggregate statistics:
> ---------------------------------------
>
> fs_id: 1965017224
> total number of servers (meta and I/O): 4
> handles available (meta and I/O): 4294967286
> handles total (meta and I/O): 4294967290
> bytes available: 111.3G
> bytes total: 111.3G
>
> NOTE: The aggregate total and available statistics are calculated
based
> on an algorithm that assumes data will be distributed evenly; thus
> the free space is equal to the smallest I/O server capacity
> multiplied by the number of I/O servers. If this number seems
> unusually small, then check the individual server statistics below
> to look for problematic servers.
>
> meta server statistics:
> ---------------------------------------
>
> server: tcp://redhat02:3334
> RAM total : 756.9M
> RAM free : 372.1M
> uptime : 2 hours, 12 minutes
> load averages : 0 0 0
> handles available: 1717986912
> handles total : 1717986916
> bytes available : 28.2G
> bytes total : 34.3G
> mode: serving both metadata and I/O data
>
>
> I/O server statistics:
> ---------------------------------------
>
> server: tcp://redhat02:3334
> RAM total : 756.9M
> RAM free : 372.1M
> uptime : 2 hours, 12 minutes
> load averages : 0 0 0
> handles available: 1717986912
> handles total : 1717986916
> bytes available : 28.2G
> bytes total : 34.3G
> mode: serving both metadata and I/O data
>
> server: tcp://redhat03:3334
> RAM total : 488.2M
> RAM free : 10.4M
> uptime : 2 hours, 09 minutes
> load averages : 2784 10592 5536
> handles available: 858993458
> handles total : 858993458
> bytes available : 27.8G
> bytes total : 33.9G
> mode: serving only I/O data
>
> server: tcp://redhat04:3334
> RAM total : 1003.6M
> RAM free : 605.3M
> uptime : 2 hours, 07 minutes
> load averages : 4096 1312 224
> handles available: 858993458
> handles total : 858993458
> bytes available : 64.3G
> bytes total : 70.4G
> mode: serving only I/O data
>
> server: tcp://redhat05:3334
> RAM total : 488.2M
> RAM free : 96.7M
> uptime : 2 hours, 05 minutes
> load averages : 0 0 0
> handles available: 858993458
> handles total : 858993458
> bytes available : 27.8G
> bytes total : 33.9G
> mode: serving only I/O data
>
>
###############################################################################
>
> Therefore my cluster has 1 metadata server, 4 IO servers and 1
client.
>
> The iozone test command is this:
> [EMAIL PROTECTED] ~]# iozone -Rab
> /home/pvfs2/Desktop/salida-redhat02-test03.xls -g 4G -f
> /mnt/pvfs2/iozone-file.tmp -U /mnt/pvfs2
>
> and the message error is this:
> fsync: Bad file descriptor
>
>
###############################################################################
>
>
> Why I did chose IOzone? because his variety of tests and the excel
> output options.
> If anyone can help me telling me why i've this message error and
how can
> i resolve this, it would be great.
> Thanks a lot, cheers.
>
>
> --
> Gonzalo Soto Subiabre
> Computer Engineer. FVT Chile Ltda.
> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
<mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
> msn: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
<mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
>
>
>
------------------------------------------------------------------------
>
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--
Gonzalo Soto Subiabre
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
msn: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
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