[ckan-dev] error 500 internal server error

Thu Sep 4 06:22:29 UTC 2014

Hi Jason,

The line in the error log is perfectly normal. If you don't want this
printed, you need to tweak the logging settings in your production.ini
file. I'm not sure what's causing apache to throw a server error though.
The logs don't seem to say. Have you tried running the server with paster
with Debug = True to see if it says anything interesting?

Nigel Babu
Developer, Open Knowledge

On 4 September 2014 11:41, Jason Tan <jason.tan at ersa.edu.au> wrote:

> Hi All,
>
> I'm hoping someone might be able to throw some light on a problem I'm
> seeing.
>
> We have a collection with some resources.
>
> When I click on the resource's link   - the red rectangle in the attached
> screenshot (
> https://www.data.sa.edu.au/dataset/tag-single-nucleotide-polymorphisms-snps-in-cyp1b1/resource/ad11e799-374c-44a3-8f5e-fc73dd2b0070)
>
>
> I  get the following in the apache ssl error log:
>
> /dataset/tag-single-nucleotide-polymorphisms-snps-in-cyp1b1/resource/ad11e799-374c-44a3-8f5e-fc73dd2b0070
> render time 0.074 seconds
>

> Running strace on apache I see this:
>
> [pid 20379] read(22, "import os\nactivate_this = os.pat"..., 4096) = 406
> [pid 20379]
> stat("/etc/ckan/prd/apache-prd.wsgi/dataset/tag-single-nucleotide-polymorphisms-snps-in-cyp1b1/resource/acdb3aee-4270-4458-bf6f-97716b04a255",
> 0x7fff64364740) = -1 ENOTDIR (Not a directory)
>
> Which is perfectly correct -  there is no directory at:
>
> /etc/ckan/prd/apache-prd.wsgi/dataset/tag-single-nucleotide-polymorphisms-snps-in-cyp1b1/resource/acdb3aee-4270-4458-bf6f-97716b04a255
>
> When I click on the button  Explore->Go To Resource  (yellow rectangle in
> atached screenshot):
>
> This URL  loads and displays the expected data:
>
> https://www.data.sa.edu.au/storage/f/2014-06-27T04:19:20.451Z/cyp1b1cleaned3.ped
>
>
> We're using:
> mod_wsgi  on centos 5
> with python 2.6.6
> httpd-tools-2.2.15-31.el6.centos.x86_64
> httpd-2.2.15-31.el6.centos.x86_64
> mod_wsgi-3.2-3.el6.x86_64
>
> And ckan was installed like this:
> pip install -e 'git+https://github.com/ckan/ckan.git@ckan-2.1.1#egg=ckan'
> .
>  I gather that  for some reason mod_wsgi/CKAN  is not mapping a URL to a
> filesystem path, but I'm not sure why or how to fix it.
>
> Any pointers very gratefully received.
>
> Thanks
> Jason
>
> --
> Jason Tan
> Data Infrastructure Specialist, eResearch SA
>
> phone: +61 8 8313 2184
> Mob: +61 407 268 270
> email: jason.tan at ersa.edu.au
> web: http://www.ersa.edu.au
>
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