On 06/03/2015, at 9:20 PM, [email protected] wrote:

> Sorry Graham my mistake the mod_wsgi i am using is 3.2 which i had to compile 
> myself, i downloaded the source code and did the compile. I am on a Solaris 
> 10 and for web server i am using Oracle OHS (Oracle HTTP Server). 
> 
> The problem is that i am having issues with compiling the latest version of 
> mod_wsgi in my solaris. 
> 
> Can you help me with that ?? 

Sure, what is the specific problem/error with the very latest mod_wsgi version?

Graham

> On Friday, March 6, 2015 at 12:09:47 PM UTC+2, Graham Dumpleton wrote:
> Do you really mean 3.1.2, or perhaps 3.1 where some OS distribution is 
> tagging on a '-2' qualifier?
> 
> Although there was a version 3.1, there never was a 3.1.2 as I only started 
> using 3 part version numbers with 4.1.0.
> 
> If it is 3.1, which if it is Oracle Linux I wouldn't be surprised, then it 
> was released 4 1/2 years ago and is way out of date.
> 
> Is there any chance at all you can upgrade to a recent version of mod_wsgi by 
> compiling from mod_wsgi source code yourself?
> 
> In using such an old version of mod_wsgi I am not sure there is much I can do 
> to help you. If it is an issue which was since fixed, you wouldn't have much 
> choice but to upgrade anyway.
> 
> Graham
> 
> On 06/03/2015, at 2:02 AM, [email protected] wrote:
> 
>> Server version: Oracle-HTTP-Server/2.2.22 
>> 
>> mod_wsgi: 3.1.2 
>> 
>> Can this be the cause of the DB errors i am getting i.e. the process is 
>> crashing and with it together the DB connection ???? 
>> 
>> Regards,
>> Alex
>> 
>> 
>> 
>> On Thursday, March 5, 2015 at 12:46:23 PM UTC+2, Graham Dumpleton wrote:
>> What version of mod_wsgi are you using?
>> 
>> What patch level revision of Apache are you using?
>> 
>> The crash of first daemon process instance but not subsequent ones sounds a 
>> bit like a bug I fixed not long back.
>> 
>> I can't right now remember what the issue was and can't find any note about 
>> it in release notes for 4.4.X versions.
>> 
>> Graham
>> 
>> On 04/03/2015, at 10:47 PM, [email protected] wrote:
>> 
>>> Shouldn't  this cause a core dump ?? Because i can not find any in order to 
>>> analyze it.... 
>>> 
>>> On Wednesday, March 4, 2015 at 1:36:45 PM UTC+2, [email protected] 
>>> wrote:
>>> Yes i tried it and the same thing happens: 
>>> 
>>> [Wed Mar 04 13:31:53 2015] [notice] child pid 10101 exit signal 
>>> Segmentation fault (11)
>>> [Wed Mar 04 13:31:54 2015] [debug] proxy_util.c(1818): proxy: grabbed 
>>> scoreboard slot 0 in child 10148 for worker proxy:reverse
>>> [Wed Mar 04 13:31:54 2015] [debug] proxy_util.c(1837): proxy: worker 
>>> proxy:reverse already initialized
>>> [Wed Mar 04 13:31:54 2015] [debug] proxy_util.c(1914): proxy: initialized 
>>> worker 0 in child 10148 for (*) min=0 max=25 smax=25
>>> [Wed Mar 04 13:31:54 2015] [info] mod_wsgi (pid=10148): Initializing Python.
>>> [Wed Mar 04 13:31:54 2015] [info] mod_wsgi (pid=10148): Attach interpreter 
>>> ''.
>>> 
>>> It crashes the first interpreter and its attaching a new one... 
>>> 
>>> On Wednesday, March 4, 2015 at 12:42:32 PM UTC+2, Graham Dumpleton wrote:
>>> Are you setting:
>>> 
>>> WSGIApplicationGroup %{GLOBAL}
>>> 
>>> directive.
>>> 
>>> http://code.google.com/p/modwsgi/wiki/ApplicationIssues#Python_Simplified_GIL_State_API
>>> 
>>> That is often a good remedy for process crashes when using Python third 
>>> party extensions modules which aren't implemented properly to work in sub 
>>> interpreters.
>>> 
>>> Graham
>>> 
>>> On 04/03/2015, at 9:25 PM, [email protected] wrote:
>>> 
>>>> Also from the logs its seems that there are some  Segmentation faults
>>>> 
>>>> mod_wsgi (pid=9760): Create interpreter 
>>>> ........
>>>> 
>>>> child pid 9760 exit signal Segmentation fault (11)
>>>> 
>>>> Is this normal ??? 
>>>> 
>>>> On Monday, March 2, 2015 at 12:39:02 PM UTC+2, [email protected] 
>>>> wrote:
>>>> Hi Graham, 
>>>> 
>>>> In my project i already have DEBUG = True which i think it overwrites 
>>>> global settings. 
>>>> 
>>>> Is DEBUG = True enough to force Django to log details of unhanded 
>>>> exceptions?? Or should i do anything else? 
>>>> 
>>>> I already have print outs of os.environ and i have checked that 
>>>> ORACLE_HOME and TNS_ADMIN is set to the correct paths , i think that those 
>>>> are the only 2 variables needed for ORACLE... If i am wrong please correct 
>>>> me. 
>>>> 
>>>> I do not know what else should i do in order to get to log all the 
>>>> exceptions in the logs.... 
>>>> 
>>>> But i think this is like the other case you help me solve with 
>>>> "hashlib"... The true problem/exception was never logged, until you told 
>>>> me to try to import _hashlib instead of hashlib. THEN AND OLNY then the 
>>>> problem was clear and i was able to fix it. I think that the same 
>>>> circumstances apply here... Somehow i am not getting the real issue... 
>>>> 
>>>> Regards,
>>>> Alex
>>>> 
>>>> On Friday, February 27, 2015 at 11:47:28 PM UTC+2, Graham Dumpleton wrote:
>>>> If this is only the latter consequence, then have you got Django setup to 
>>>> send you details of unhanded exceptions in emails or otherwise log them. 
>>>> If you don't then Django will simply translate an error into a generic 500 
>>>> response page and you will not see the error anywhere.
>>>> 
>>>> If you are on a development system, you can alternatively enable 
>>>> temporarily in the Django settings file:
>>>> 
>>>> DEBUG = True
>>>> 
>>>> and if it was creating a 500 page then it will then include the exception 
>>>> details that caused it.
>>>> 
>>>> BTW other possible problems with Oracle specifically are missing 
>>>> ORACLE_??? environment variables set in environment of Apache.
>>>> 
>>>> If you add debug statements in WSGI script file to print out contents of 
>>>> os.environ from 'os' module, dod you see all the ORACLE_?? environment 
>>>> variables you expect to see that might be set in the shell of your user 
>>>> environment.
>>>> 
>>>> Graham
>>>> 
>>>> On 28/02/2015, at 8:40 AM, [email protected] wrote:
>>>> 
>>>>> Hi Graham,
>>>>> 
>>>>> Can you elaborate more on this... Based on the Django project i have 
>>>>> created, in the settings for the Oracle DB i have provided the user (db 
>>>>> schema) the application should use to connect to the db. 
>>>>> 
>>>>> I have not changed anything since i migrated the project to the new 
>>>>> infrastructure and the project was working fine before. I am on the same 
>>>>> machine i just installed everything again basically..
>>>>> 
>>>>> I know that somewhere there is an exception occurring, but the problem is 
>>>>> that it is never caught and printed in the logs.... 
>>>>> 
>>>>> As you can see in the logs the only errors are when it tries to close the 
>>>>> connection and most probably never finds one.. either because it was 
>>>>> never created or it is closed before everything else is executed. 
>>>>> 
>>>>> I want to find a way to debug this ... Is there a way to trace each call 
>>>>> and every step so i can place some sort of print to see where the code is 
>>>>> not working ... Because i do not know any other way to fix this. 
>>>>> 
>>>>> I another problem i had,  you were the one that suggested  something that 
>>>>> relieved the actual problem and i was able to fix it, because before that 
>>>>> the only errors in the logs i was seeing were not relevant to the 
>>>>> problem. 
>>>>> 
>>>>> Thanks
>>>>> 
>>>>> On Thursday, February 26, 2015 at 11:42:26 AM UTC+2, Graham Dumpleton 
>>>>> wrote:
>>>>> If Oracle is providing access based on the identity of the user 
>>>>> connecting though local UNIX socket connection to the database, it could 
>>>>> be failing because your application will be running as the Apache user 
>>>>> and maybe you haven't configured Oracle to allow that user to connect.
>>>>> 
>>>>> Graham
>>>>> 
>>>>> On 25/02/2015, at 10:09 PM, [email protected] wrote:
>>>>> 
>>>>>> Hi, 
>>>>>> 
>>>>>> I migrated my project to a new infrastructure but i kept the same 
>>>>>> versions Apache 2.2 + mod_wsgi + python 2.6.1 + Django 1.2.1 + ....... 
>>>>>> 
>>>>>> I am trying to run my project or even access the admin console of Django 
>>>>>> /admin and i can not.
>>>>>> 
>>>>>> I tried to connect directly from the Oracle Client (sqlplus) and i can, 
>>>>>> i created a simple python script that uses cx_oracle and i am able to 
>>>>>> connect to the database without any problems, i have tested "python 
>>>>>> manage.py dbshell" and it connects. I also used "python manage.py 
>>>>>> runserver" and by navigating to http://127.0.0.1:8000/admin i was able 
>>>>>> to access the console without any errors,  but when i try using apache + 
>>>>>> mod_wsgi i get the following error:   
>>>>>> 
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] mod_wsgi 
>>>>>> (pid=27565): Exception occurred processing WSGI script 
>>>>>> '/opt/wgt_proxy/wgtproxyProj/
>>>>>> wgtproxy/apache/django.wsgi'.
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] Traceback (most 
>>>>>> recent call last):
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>> "/opt/wgt_proxy/wgtproxyProj/wgtproxy/apache/django.wsgi", line 50, in 
>>>>>> __call__
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     return 
>>>>>> self.__application(environ, _start_response)
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/core/handlers/wsgi.py",
>>>>>>  line 248, in __call__
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     
>>>>>> signals.request_finished.send(sender=self.__class__)
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/dispatch/dispatcher.py",
>>>>>>  line 162, in send
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     response = 
>>>>>> receiver(signal=self, sender=sender, **named)
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/db/__init__.py",
>>>>>>  line 82, in close_connection
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     conn.close()
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/db/backends/__init__.py",
>>>>>>  line 70, in close
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     
>>>>>> self.connection.close()
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] 
>>>>>> OperationalError: ORA-03114: not connected to ORACLE
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] 
>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] Request Failed 
>>>>>> for : /wgtproxy/admin/, Resp Code : [500]
>>>>>> 
>>>>>> Can anyone help me solve my issue?
>>>>>> 
>>>>>> Thanks
>>>>>> 
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>>>>> 
>>>>> 
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> 
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