Re: radosgw: set_contents_from_string provokes "Internal Server Error"

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Yehuda, Caleb,

Thanks for your quick replies. 

Setting 

rgw print continue = false

helped indeed, the problem has gone.  We apparently misunderstood the line saying
"if you do NOT use a modified fastcgi …" in the radosgw manual install documentation.

Thanks again for your help!

Cheers,
 Arne

--
Arne Wiebalck
CERN IT

On Apr 11, 2013, at 3:37 PM, Yehuda Sadeh <yehuda@xxxxxxxxxxx>
 wrote:

On Thu, Apr 11, 2013 at 5:53 AM, Arne Wiebalck <Arne.Wiebalck@xxxxxxx> wrote:
Hi,

We see a reproducible "Internal Server Error" when doing something like

-->
#!/usr/bin/env python

import boto
import boto.s3.connection
access_key = '...'
secret_key = '...'

conn = boto.connect_s3(
       aws_access_key_id = access_key,
       aws_secret_access_key = secret_key,
       host = '....cern.ch',
       #is_secure=False,               # uncommmnt if you are not using ssl
       calling_format = boto.s3.connection.OrdinaryCallingFormat(),
       )

bucket = conn.create_bucket('bucketXXX')
key = bucket.new_key('fileXXX.txt')
key.set_contents_from_string('XXX content!')
<--

I can see that the script is actually achieving what it's meant to do, i.e.
create the bucket,
create the file and add content, but then it fails at
"set_contents_from_string":

-->
Traceback (most recent call last):
 File "./ceph-s3.py", line 18, in <module>
   key.set_contents_from_string('XXX content!')
 File "/usr/lib/python2.6/site-packages/boto/s3/key.py", line 539, in
set_contents_from_string
   self.set_contents_from_file(fp, headers, replace, cb, num_cb, policy)
 File "/usr/lib/python2.6/site-packages/boto/s3/key.py", line 455, in
set_contents_from_file
   self.send_file(fp, headers, cb, num_cb)
 File "/usr/lib/python2.6/site-packages/boto/s3/key.py", line 367, in
send_file
   self.name, headers, sender=sender)
 File "/usr/lib/python2.6/site-packages/boto/s3/connection.py", line 342,
in make_request
   data, host, auth_path, sender)
 File "/usr/lib/python2.6/site-packages/boto/connection.py", line 459, in
make_request
   return self._mexe(method, path, data, headers, host, sender)
 File "/usr/lib/python2.6/site-packages/boto/connection.py", line 435, in
_mexe
   raise BotoServerError(response.status, response.reason, body)
boto.exception.BotoServerError: BotoServerError: 500 Internal Server Error
<--

This is Apache 2.2.15 on a RHEL6.4 derivative, ceph 0.56.4.

Any ideas?

Well, it's not completely obvious from your logs, but it might be that
you're not using the apache fastcgi module that is tailored for
100-continue (not sure if there are readily available packages for
RHEL though). Try disabling 100-continue on the gateway; under the
correct conf section add:

   rgw print continue = false

And see if it helps.


I got logging enabled on the gateway, in case this is not an obvious
problem.

Will need that if the above doesn't help.


Yehuda

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