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From "Musayev, Ilya" <imusa...@webmd.net>
Subject RE: ISO Download Failing
Date Tue, 05 Mar 2013 17:29:46 GMT
Tim,

I'd look into updating your NFS server version - there was a known bug about NFS taking all
the cache and ram last year.

If update is not helpful, experiment with 'sync' and then 'echo 2 > /proc/sys/vm/drop_caches'

I'd set cron and run few times a day, see if it helps.

Regards
ilya



> -----Original Message-----
> From: Tim Schultheiss [mailto:tschultheiss@dynamicquest.com]
> Sent: Monday, March 04, 2013 5:01 PM
> To: cloudstack-users@incubator.apache.org
> Subject: RE: ISO Download Failing
> 
> It looks like it was a memory issue on the NFS server. I started a remote
> session and the server was taking a long time to respond to commands, and
> all the RAM was being allocated to the cache. After a reboot I tried another
> import, this time it transferred the file quickly. I checked it's resource usage
> and RAM is back to normal. We'll keep an eye on it and see how it performs.
> 
> Thank you Ilya for your help!
> 
> -----Original Message-----
> From: Musayev, Ilya [mailto:imusayev@webmd.net]
> Sent: Monday, March 04, 2013 3:18 PM
> To: cloudstack-users@incubator.apache.org
> Subject: RE: ISO Download Failing
> 
> Tim,
> 
> I may have experienced a similar issue a while back. See if you can run
> tcpdump on SSVM to check for any issues and as to why this happens. I don't
> believe SSVM uses wget when it puills the ISO, sniffing and analyzing the
> pcap file would be better.
> 
> This is shot in the dark, check the memory utilization and SSVM, maybe you
> are running out of RAM? I've seen this in past as well, but I was running non-
> stable development version of CS.
> 
> Do you see anything in the logs for CS Management Server and SSVM under
> /var/log/cloud/?
> 
> Regards
> ilya
> 
> > -----Original Message-----
> > From: Tim Schultheiss [mailto:tschultheiss@dynamicquest.com]
> > Sent: Monday, March 04, 2013 10:04 AM
> > To: cloudstack-users@incubator.apache.org
> > Subject: RE: ISO Download Failing
> >
> > Hi Kirk, thanks for the reply.
> >
> > We performed a wget from the SSVM, and were able to download a full
> > 3GB iso from an internal server. The connection was closed out and
> > restarted twice during the attempt.
> > For reference, we're using Cloudstack 4.0.0, with two CentOS 6.2
> > management servers and two Xen 6.02 hypervisors.
> >
> > -----Original Message-----
> > From: Kirk Kosinski [mailto:kirkkosinski@gmail.com]
> > Sent: Friday, March 01, 2013 8:59 PM
> > To: cloudstack-users@incubator.apache.org
> > Subject: Re: ISO Download Failing
> >
> > Hi, Billy.  I don't think this is a common issue.  Can you log in to
> > the SSVM and try to wget a large ISO to see if it downloads successfully?
> >
> > Best regards,
> > Kirk
> >
> > On 03/01/2013 07:44 AM, Billy Ramsay wrote:
> > > I'm running into an issue while attempting to add ISOs to our
> > > CloudStack environment.
> > >
> > >
> > >
> > > The ISO downloads fail with the error "HTTP server does not support
> > > partial get". This happens with almost all ISO downloads, regardless
> > > of OS type or where the ISO is being downloaded from (our own
> > > internal ISO server setup for just this purpose, or many different
> > > public HTTP mirrors). The download fails at random times during the
> > > process, I've seen as little as 5% complete, and a few get to 99%
> > > before
> failing.
> > >
> > >
> > >
> > > Has anyone else run into this issue?
> > >
> > >
> > >
> > > Thanks in advance.
> > >
> > >
> > >
> > >
> >
> 
> 
> 



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