uWSGI log buffer/truncate example

app.ini

[uwsgi]
processes = 2
socket = 127.0.0.1:4002
master = True
logto = uwsgi.log
threads = 2
single-interpreter = True
log-master = True
module = app:WebApplication()

app.py

import sys
import logging

log = logging.getLogger(__name__)
log_format = "%(name)s %(levelname)s %(asctime)s %(message)s"
log_level = logging._levelNames["DEBUG"]

log.info("Logging at '%s' level to stdout", log_level)

root = logging.getLogger()
root.setLevel(log_level)
for h in root.handlers[:]:
    root.removeHandler(h)
handler = logging.StreamHandler(sys.stdout)
formatter = logging.Formatter(log_format)
handler.setFormatter(formatter)
root.addHandler(handler)

class WebApplication(object):
    def __init__(self):
        for i in range(0, 1024):
            log.info('############ this line is approximately 128 bytes long including newline, iteration number %0.4d', i)
    def __call__(self, environ, start_response):
        start_response('200 OK', [('Content-Type','text/html')])
        return ['foo']


def return_app( conf, **kwargs ):
    log.debug('called from return_app()')
    log.debug('conf: %s', conf)
    log.debug('kwargs: %s', kwargs)
    return WebApplication()