litchfield/django-loglimit

Slow down those Django errors on busy sites

Limit duplicate Django errors to come every X seconds.

Easy way to slow down those error emails, or make it part of your more
sophisticated error handling chain.

Automagically falls back to using local memory if it can't find cache or 
if the cache is broken. Yep, this has been battle tested.

Add something like this to your settings --

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'mail_admins': {
            'level': 'ERROR',
            'class': 'django.utils.log.AdminEmailHandler',
            'filters': ['loglimit'],
        }
    },
    'filters': {
        'loglimit': {
            '()': 'loglimit.LogLimitFilter',
        }
    },
    'loggers': {
        'django.request':{
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
    },
}

Note this example setting adds the filter to the standard AdminEmailHandler,
but you can mix it in with whatever error handlers you like.

Optional settings --

# Send a duplicate error once every X seconds at most
LOGLIMIT_RATE = 60

# How many different tracebacks to keep in cache
LOGLIMIT_MAX_KEYS = 100