[Qgis-user] QGIS-Server write log on stdoutput ?

[Andrea Peri]

Hi Larry,
Thx .
You have reason.
Initially I guess the problem was easyly a configuration question,but
perhaps there other question.

I send the mail to Dev List.

Thx.


2014-06-21 21:50 GMT+02:00 Larry Shaffer <larrys at dakotacarto.com>:
> Hi Andrea,
>
> I suggest posting this to the dev list and asking Marco Hugentobler for
> assistance. I personally do not know enough about threading on Linux to help
> with that issue. Sorry.
>
> You could also create an issue ticket and assign to Marco, though posting to
> the dev list should probably be the first step.
>
> On a side note: is the log file populated with output when running the
> server with the OK project file?
>
> Regards,
>
> Larry Shaffer
> Dakota Cartography
> Black Hills, South Dakota
>
>
> On Sat, Jun 21, 2014 at 1:36 PM, Andrea Peri <aperi2007 at gmail.com> wrote:
>>
>> Hi, Larry.
>>
>> Thx for hint.
>>
>> I set the two variables and the log file is create.
>> :)
>>
>> But unfortunately it is absolutely empty.
>> :(
>>
>> It seem the qgis-server will crash quite istantaneously.
>>
>> As I report before , I Guess this is something due to the qgis project
>> because another project will work without any problem.
>>
>> So I set a local environment and run the qgis-server from a shell with
>> a gdb debug to see effectively what it send to stdout.
>>
>> This is what it report:
>>
>> ...................
>> [Thread debugging using libthread_db enabled]
>> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
>> Warning 1: Unable to find driver ECW to unload from GDAL_SKIP
>> environment variable.
>> Warning 1: Unable to find driver ECW to unload from GDAL_SKIP
>> environment variable.
>> Warning 1: Unable to find driver JP2ECW to unload from GDAL_SKIP
>> environment variable.
>> Warning 1: Unable to find driver ECW to unload from GDAL_SKIP
>> environment variable.
>> Warning 1: Unable to find driver JP2ECW to unload from GDAL_SKIP
>> environment variable.
>> [New Thread 0x7fffe307c700 (LWP 823)]
>> [New Thread 0x7fffe27ea700 (LWP 824)]
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x00007ffff0e50421 in __dynamic_cast ()
>>    from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
>> (gdb)
>> ..................
>>
>> I see the version my linux run is the
>>         libstdc++.so.6 (libc6,x86-64) =>
>> /usr/lib/x86_64-linux-gnu/libstdc++.so.6
>>
>> There is some know issue of qgis-server with the libstdc++.so.6
>> ?
>>
>> 2014-06-21 20:53 GMT+02:00 Larry Shaffer <larrys at dakotacarto.com>:
>> > Hi Andrea,
>> >
>> > You can set the QGIS_LOG_FILE environment variable to have the
>> > qgis_mapserv.fcgi process log to a file. It needs to be set within the
>> > server process environment (if it has a loadable FCGI module) or within
>> > the
>> > FCGI-spawning process environment, e.g. uWSGI or spawn-fcgi.
>> >
>> > For Apache:
>> >
>> > <IfModule mod_fastcgi.c>  (or mod_fcgid.c)
>> >   ...
>> >   SetEnv QGIS_LOG_FILE /path/to/qgis_server.log
>> > </IfModule>
>> >
>> > Of course, the log needs to be writable by your Apache or FCGI-spawning
>> > process user.
>> >
>> > NOTE: if using latest master builds (or upcoming 2.4 release), the env
>> > var
>> > is now QGIS_SERVER_LOG_FILE, with the new env var QGIS_SERVER_LOG_LEVEL
>> > to
>> > define verbose level [0,1].
>> >
>> > I haven't tested this, but the amount of debug output is usually
>> > relative to
>> > the CMake build type, e.g. Release vs. RelWithDebInfo or Debug, like is
>> > the
>> > case for the QGIS desktop output. Pretty sure that is always a
>> > compile-time
>> > choice, and can't be be overridden at run-time. Your qgis_mapserv.fcgi
>> > binary may need to be (re)built as RelWithDebInfo or Debug to trigger
>> > enough
>> > output to debug your issue.
>> >
>> > [0]
>> >
>> > https://github.com/qgis/QGIS/commit/29c39b9f0209ddedd0d51eda1dc926e6e0f2ea9e
>> > [1]
>> >
>> > https://github.com/qgis/QGIS/commit/bdf1ac8d46d89869e58884c5f55ff711a1f5f76d
>> >
>> > Regards,
>> >
>> > Larry Shaffer
>> > Dakota Cartography
>> > Black Hills, South Dakota
>> >
>> >
>> > On Sat, Jun 21, 2014 at 9:25 AM, Andrea Peri <aperi2007 at gmail.com>
>> > wrote:
>> >>
>> >> Hi,
>> >>
>> >> Our qgis-server is crashing on a project .
>> >> This is quite strange because on the same project on a qi-desktop (on
>> >> another machine) it run without any problem.
>> >> And also the qgis-server run without any problem with another different
>> >> project.
>> >>
>> >> I try to read from the log of server web to see any useful information
>> >> but the log none report of qgis.
>> >> The web server ,og come from the stdout so perhaps there is some
>> >> specific setting to say to QS to output to stdout log ?
>> >>
>> >> Thx,
>> >>
>> >>
>> >> --
>> >> -----------------
>> >> Andrea Peri
>> >> . . . . . . . . .
>> >> qwerty àèìòù
>> >> -----------------
>> >> _______________________________________________
>> >> Qgis-user mailing list
>> >> Qgis-user at lists.osgeo.org
>> >> http://lists.osgeo.org/mailman/listinfo/qgis-user
>> >
>> >
>>
>>
>>
>> --
>> -----------------
>> Andrea Peri
>> . . . . . . . . .
>> qwerty àèìòù
>> -----------------
>
>



-- 
-----------------
Andrea Peri
. . . . . . . . .
qwerty àèìòù
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