[Twisted-Python] running twisted with supervisord -- logging question

[Werner Thie]

Hi

that's what I use in my .tac files

application = service.Application(mainPkgName)

#use this code below to configure logging in all aspects; keep in mind 
#that for the log rotating code the
#access rights must be set such that the process has write access  to 
#the log directory. A trick to adapt to
#get a logfile with the demoted process's UID/GID is to have an already 
#existing file with all the properties
#set. LogFile will from then on create rotated files with the same 
#properties.

application.setComponent(ILogObserver, 
FileLogObserver(LogFile('the.log', '/var/log/my-app', 
rotateLength=100000)).emit)

Werner

On 8/23/14 1:46 PM, Jonathan Vanasco wrote:
> Christopher-
>
> Thanks for the insight.  I was stupid and didn't include my code.
>
> I don't actually want supervisor to handle the logging.  I wanted to
> have this app's logs in /var/log/myapp-twisted/twisted.log
>
> I just can't figure out how to make this happen.  i've been playing with
> different permutations of twistd commands, redirect_stderr and
> stdout_logfile, and haven't found the right balance
>
> the actual logging calls are just to python's logger ( `import logging`
> ; logging.getLogger(), log.debug(), etc)
>
> ---------
> [program:myapp-twisted]
> priority=100
> process_name=%(program_name)s
> autostart=true
> autorestart=true
> stopsignal=QUIT
> redirect_stderr = false
> stdout_logfile = /var/log/myapp-twisted/twisted.log
> directory = /var/www/sites/myapp-svn_tag-current_production/daemon/twisted
> environment = PATH="/var/www/sites/myapp-virtualenv/bin:$PATH"
> command = /var/www/sites/myapp-virtualenv/bin/twistd -y
> controller-production.tac --pidfile /tmp/myapp-twisted.pid
> ----------
>
>
>
>
>
> On Aug 22, 2014, at 11:50 PM, Christopher Armstrong wrote:
>
>>
>> On August 22, 2014 at 6:52:02 PM, Jonathan Vanasco
>> (twisted-python at 2xlp.com <mailto:twisted-python at 2xlp.com>) wrote:
>>
>>> hoping someone can answer this question-
>>>
>>> i can't seem to get my logging right while using supervisord
>>>
>>> i'm not using twisted logging, just the regular python logging
>>> infrastructure.
>>>
>>> the two end-results I've had:
>>>
>>> - everything double-logs into twistd.log & /var/log/supervisor.log
>>> - anything this is `print`'ed appears in my twistd.log , but none of
>>> the `log.debug()` lines appear
>>>
>>> the end result I want, is for debug info from the twisted process to
>>> be recorded in a single file
>>
>>
>> I prefer to use
>>
>>
>> twistd -n -l - ...
>>
>>
>> passing ‘-' to -l means “log to stdout”.
>>
>>
>> Without your code, we can’t know how you’re configuring python
>> logging, and what may be wrong with it. This should be the baseline
>> for using twistd with supervisor if you want to let supervisor handle
>> logging. FYI, you can configure supervisor to put the output in a
>> different file than /var/log/supervisor.log, too.
>>
>>
>> --
>> Christopher Armstrong
>> http://twitter.com/radix
>> http://wordeology.com/
>>
>> _______________________________________________
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>> Twisted-Python at twistedmatrix.com <mailto:Twisted-Python at twistedmatrix.com>
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>
> // Jonathan Vanasco
>
> c. 646.729.6436  |  415.501.9815
> e. jonathan at 2xlp.com <mailto:jonathan at 2xlp.com>
> w. http://findmeon.com/user/jvanasco
> linkedin. http://linkedin.com/in/jonathanvanasco
> blog. http://destructuring.net
>
>
>
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