On Sat, Mar 5, 2011 at 10:41 AM, Edwin <edwinja...@gmail.com> wrote:
> I'm getting a strange behaviour when setting up logging. Here's my
> logging configuration:
>
> LOGGING =
> {
> 'version': 1,
> 'disable_existing_loggers': True,
> 'formatters': {
> 'admin_configuration': {
> 'format': '%(asctime)s %(levelname)s %(category)s %
> (sub_category)s %(type_id)s %(message)s',
> 'datefmt': LOG_DATE_FORMAT,
> },
> },
> 'handlers': {
> 'admin_console': {
> 'level':'DEBUG',
> 'class':'logging.StreamHandler',
> 'formatter': 'admin_configuration'
> },
> 'db': {
> 'level':'DEBUG',
> 'class':'apps.history.handlers.DatabaseHandler',
> 'formatter': 'admin_configuration'
> },
> },
> 'loggers': {
> 'db_logger': {
> 'handlers': [ 'admin_console', 'db' ],
> 'level': 'DEBUG',
> 'propagate': False,
> },
> }
> }
>
> I then created a Database log handler and the log record will be
> created using signals (e.g. on model save/delete) because I'm trying
> to keep track of model changes. As you can see from my config, the
> logger has 2 handlers, 1 for DB and 1 for stdout (stream handler).
>
> I use the logger this way:
>
> logging.getLogger('db_logger').log(level, msg, extra=extras)
>
> where extras are extra attributes I'm passing to the logger.
>
> Now the weird thing is, when I change the order of 'handlers'
> definition under 'db_logger' to ['db', 'admin_console'], the logger
> raises this error:
> LogRecord instance has no attribute 'asctime'
>
> After checking the record instance, 'message' attribute is generated
> either, but all of my extra attributes are there.
> The same error happens if I remove 'admin_console' handler. The only
> way I can get the logger to work is that the handler must be in the
> original order: 'handlers': [ 'admin_console', 'db' ]
>
>
> Any idea why this is happening??
It's difficult to say. If I had to guess, I'd say there was something
unusual about your db logger. However, without seeing explicit stack
traces or sample code, that's about the best I can offer.
Yours,
Russ Magee %-)
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