#16121: Duplicating loggin or Change formatter every time
--------------------+-------------------------------
Reporter: niwi@… | Owner: nobody
Type: Bug | Status: new
Milestone: | Component: Uncategorized
Version: 1.3 | Severity: Normal
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Easy pickings: 0
--------------------+-------------------------------
I have configured a logger like this:
{{{
#!python
'niwi':{
'handlers': ['console'],
'level': 'DEBUG',
'propagate': False,
},
'niwibe_console': {
'handlers': ['niwibe_console_handler'],
'level': 'DEBUG',
'propagate': False,
}
}}}
And the configuration of handlers and formatters like this:
{{{
#!python
'formatters': {
'verbose': {
'format':
'%(asctime)s:%(levelname)s:%(module)s:%(process)d:%(message)s'
},
'null': {
'format': '%(message)s',
}
},
'handlers': {
'null': {
'level':'DEBUG',
'class':'django.utils.log.NullHandler',
},
'console':{
'level':'DEBUG',
#'class':'logging.StreamHandler',
'class':'niwi_logging.handlers.GreenStreamHandler',
'formatter': 'verbose'
},
'niwibe_console_handler': {
'level': 'DEBUG',
'class': 'niwi_logging.handlers.GreenStreamHandler',
#'class': 'logging.StreamHandler',
},
'mail_admins': {
'level': 'ERROR',
'class': 'django.utils.log.AdminEmailHandler',
},
},
}}}
I have this class as the view:
{{{
#!python
from django.views.generic import View
from django.http import HttpResponse
import logging
local_loggers = {}
class TestView(View):
def get(self, request, *args, **kwargs):
logger_key = "niwibe_console"
logger_val = "test"
if logger_key in local_loggers:
logger_obj = local_loggers[logger_key]
else:
local_loggers[logger_key] = logging.getLogger(logger_key)
logger_obj = local_loggers[logger_key]
# debug
print logger_obj.handlers
print logger_obj.parent
logger_obj.info(logger_key)
return HttpResponse('ok', mimetype="text/plain")
}}}
The handler used is:
{{{
#!python
from gevent.queue import Queue
from gevent import sleep, spawn
from logging import StreamHandler
class GreenStreamHandler(StreamHandler):
""" Gevent-based experimental async StreamHandler implementation."""
_log_queue = Queue()
def __init__(self, *args, **kwargs):
#super(GreenStreamHandler, self).__init__(*args, **kwargs)
StreamHandler.__init__(self, *args, **kwargs)
self.grl = spawn(self.__save_loop)
def __save_loop(self):
while True:
record = self._log_queue.get()
#super(GreenStreamHandler, self).emit(record)
StreamHandler.emit(self, record)
def emit(self, record):
self._log_queue.put_nowait(record)
}}}
I get a strange result. Sometimes I get one formatter sometimes not:
{{{
[<niwi_logging.handlers.GreenStreamHandler object at 0x2f28210>]
<logging.RootLogger object at 0x2d39fd0>
2011-05-29 14:45:18,627:INFO:views:20051:niwibe_console
[<niwi_logging.handlers.GreenStreamHandler object at 0x2f28210>]
<logging.RootLogger object at 0x2d39fd0>
niwibe_console
[<niwi_logging.handlers.GreenStreamHandler object at 0x2f28210>]
<logging.RootLogger object at 0x2d39fd0>
niwibe_console
[<niwi_logging.handlers.GreenStreamHandler object at 0x2f28210>]
<logging.RootLogger object at 0x2d39fd0>
2011-05-29 14:45:21,383:INFO:views:20051:niwibe_console
}}}
Is not the first time it happens! Similar things happened to me without
using Gevent, in a standard environment with mod_wsgi and apache ...
Environment:
python 2.7
django 1.3
linux
--
Ticket URL: <https://code.djangoproject.com/ticket/16121>
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