One of my django projects is deployed using ansible (gunicorn & nginx). Below is gunicorn configuration :
bind = '127.0.0.1:8001'
backlog = 2048
workers = 8
worker_class = 'sync'
worker_connections = 1000
timeout = 300
keepalive = 2
spew = False
daemon = False
pidfile = None
umask = 0
user = None
group = None
tmp_upload_dir = None
loglevel = 'info'
errorlog = '/var/log/error.log'
accesslog = '/var/log/access.log'
proc_name = None
def pre_fork(server, worker):
pass
def pre_exec(server):
server.log.info("Forked child, re-executing.")
def when_ready(server):
server.log.info("Server is ready. Spawning workers")
def worker_int(worker):
worker.log.info("worker received INT or QUIT signal")
## get traceback info
import threading, sys, traceback
id2name = dict([(th.ident, th.name) for th in threading.enumerate()])
code = []
for threadId, stack in sys._current_frames().items():
code.append("\n# Thread: %s(%d)" % (id2name.get(threadId,""),
threadId))
for filename, lineno, name, line in traceback.extract_stack(stack):
code.append('File: "%s", line %d, in %s' % (filename,
lineno, name))
if line:
code.append(" %s" % (line.strip()))
worker.log.debug("\n".join(code))
def worker_abort(worker):
worker.log.info("worker received SIGABRT signal")
The worker processes are running synchronously. I want them to run concurrently as I have a lot of requests per minute on this server. On research I got to find that I can use python libraries like eventlet
which uses greenthreads for concurrency.For this I need to change the worker_class to eventlet as :
worker_class = eventlet
But now I am clueless. I don't get how to implement the asynchronous green threads for this project. May be this is a stupid question but I really need some help.
Thanks in advance.
You've already done everything required. worker_class = eventlet
or gunicorn -k eventlet
is enough to run HTTP request handlers concurrently. And then you can serve many concurrent requests with sleep or IO in their handlers.