[Mulgara-general] Problems loading data into Mulgara

[Paul Gearon]

Hi Lars,

I'll start by apologizing, as you've caught me on a busy weekend and I
don't really have time to look into this problem for a couple of days.
Hopefully you can wait for me (unless someone else lends a hand).

I confess that I don't think I've ever used curl to upload a file into
Mulgara, though I now realize I should have tested that. I've always
used the HTTP interface as a programming API, so I've always uploaded
graphs using some simple Java code (I can send this if you're
interested). Otherwise, I manually uploaded files using the web
interface.

After the weekend I'll take some time to see what's going on with a
curl upload. Sorry I can't check it out before then.

BTW, you mentioned that you tried mimicking the webui with a POST to
/webui/ExecuteQuery. From memory, that may not be the correct path,
but it's been a while, so I have to check. Out of curiosity, does the
file load if you use the web page?

Regards,
Paul

On Sat, Apr 9, 2011 at 2:23 PM, Lars Marius Garshol
<larsga at garshol.priv.no> wrote:
>
> I'm trying to load 30-40 graphs into Mulgara, and want to do it automatically. I've got a Python script that loads data, and it appears to work, but I can't find the data by SPARQL queries afterwards.
>
> Mulgara starts fine, and everything seems normal. I can query in the web interface etc etc.
>
> I tried PUTting a graph as follows:
>
> curl -v -T ~/workspace/dogfood/LDOW-2008-complete.rdf http://localhost:8080/tql/?graph=http://example.org/LDOW-2008-complete.rdf
>
> It appears to work:
>
> * About to connect() to localhost port 8080 (#0)
> *   Trying ::1... connected
> * Connected to localhost (::1) port 8080 (#0)
>> PUT /tql/?graph=http://example.org/LDOW-2008-complete.rdf HTTP/1.1
>> User-Agent: curl/7.21.2 (x86_64-apple-darwin10.6.0) libcurl/7.21.2 OpenSSL/1.0.0c zlib/1.2.5 libidn/1.19
>> Host: localhost:8080
>> Accept: */*
>> Content-Length: 75190
>> Expect: 100-continue
>>
> < HTTP/1.1 100 Continue
> < HTTP/1.1 201 Created
> < Expires: Thu, 01 Jan 1970 00:00:00 GMT
> < Set-Cookie: JSESSIONID=1ktmsdb71egeh;Path=/tql
> < Content-Length: 0
> < Server: Jetty(6.1.x)
> <
> * Connection #0 to host localhost left intact
> * Closing connection #0
>
> So I try this query in the web interface:
>
> Response is:
>
> rmi://c6d6c5ac1.dhcp.bluecom.no/server1#
> http://mulgara.org/mulgara#preallocatedNodeModel
> rmi://c6d6c5ac1.dhcp.bluecom.no/server1#photos
> http://example.org/cold-2010-complete.rdf
>
> No sign of my new graph there. (The cold-2010-complete.rdf graph I uploaded manually.)
>
> I tried mimicking the web user interface by POSTing to /webui/ExecuteQuery directly, but that didn't work, either.
>
> What gives?
>
> --Lars M.
> http://www.garshol.priv.no/tmphoto/
> http://www.garshol.priv.no/blog/
>
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