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Old 03-19-2010, 09:59 PM
Mike McLean
 
Default local koji, yum FTP errors randomly on F11

On 03/19/2010 06:20 PM, Michael Cronenworth wrote:
> When I send builds to my local koji, I sometimes get failures just
> because yum failed to download the initial build root. I'll get messages
> like this:
>
> ftp://localhost/pub/fedora/updates/12/x86_64/unzip-5.52-12.fc12.x86_64.rpm: [Errno 4] IOError: [Errno ftp error] 500 OOPS: child died

This is happening at the yum level, so you should be able to replicate
outside of koji (or indeed outside of mock).

The error itself looks like it may originate on your ftp server. Have
you checked those logs?

How hard are you hitting this box?
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Old 03-20-2010, 03:38 AM
Michael Cronenworth
 
Default local koji, yum FTP errors randomly on F11

On 03/19/2010 05:59 PM, Mike McLean wrote:
> This is happening at the yum level, so you should be able to replicate
> outside of koji (or indeed outside of mock).
>
I have a half dozen F12 boxes using the same FTP server as a mirror for
F12 updates. They can pull a hundred updates at a time with no problem.
When those same boxes were on F11 I would sometimes (rarely) see the
same FTP 500 Oops error, but I haven't since the move to F12 so I didn't
think anything of it. Perhaps moving the koji instance to F12 might
help, but I don't have the time at the moment to upgrade it unless I
really have to.
> The error itself looks like it may originate on your ftp server. Have
> you checked those logs?
>
There's nothing in the logs that gives any pointers about how this is
happening unfortunately. The FTP server lives on the same box as the
koji instance, as to why the URL is localhost. The packages themselves
live locally on the server. No NFS or other weird setup is going on.
> How hard are you hitting this box?
>
At the time of building, the box was only working on one task, one
package, and the task was the only one downloading from FTP. The box is
also used to house multiple VMs running on VBox (about 6 VMs), but they
are basically sitting at idle right now.

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Old 03-21-2010, 02:24 PM
James Antill
 
Default local koji, yum FTP errors randomly on F11

On Fri, 2010-03-19 at 23:38 -0500, Michael Cronenworth wrote:
> On 03/19/2010 05:59 PM, Mike McLean wrote:
> > This is happening at the yum level, so you should be able to replicate
> > outside of koji (or indeed outside of mock).
> >
> I have a half dozen F12 boxes using the same FTP server as a mirror for
> F12 updates. They can pull a hundred updates at a time with no problem.
> When those same boxes were on F11 I would sometimes (rarely) see the
> same FTP 500 Oops error, but I haven't since the move to F12 so I didn't
> think anything of it. Perhaps moving the koji instance to F12 might
> help, but I don't have the time at the moment to upgrade it unless I
> really have to.

If I'm reading this right, the problem happened with yum downloading on
F11 but not on F12? If so then it was likely "fixed" by the move in
urlgrabber from using python's urilib module to using libcurl.
IMO the easiest fix is likely to be to move from using ftp to using
http. Or do lots of testing with urlgrabber/urilib against your ftp
server and fix either the client or the server.

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