upstream-zulip/puppet/zulip/templates/uwsgi.ini.template.erb

[uwsgi]
# Catch typos in configuration options
strict=true

# Basic environment
env=LANG=C.UTF-8
uid=zulip
gid=zulip

# We run the main process in /, and chdir to the current "current"
# directory in each forked process
chdir=/
hook-post-fork=chdir:/home/zulip/deployments/current

# lazy-apps means that the application is loaded after forking (and
# thus chdir'ing).  This lets us do rolling restarts into new
# versions.
# https://uwsgi-docs.readthedocs.io/en/latest/articles/TheArtOfGracefulReloading.html#preforking-vs-lazy-apps-vs-lazy
lazy-apps=true

# Entrypoint of the application
module=zproject.wsgi:application




# Start a master process listening on this socket
master=true
chmod-socket=700
chown-socket=zulip:zulip
socket=/home/zulip/deployments/uwsgi-socket
listen=<%= @uwsgi_listen_backlog_limit %>

# Create a control socket, allowing rolling restarts ("chain reloading").
master-fifo=/home/zulip/deployments/uwsgi-control


# Let threads run when processes aren't responding to requests;
# required for Sentry background worker
enable-threads=true

# How many serving processes to fork
processes=<%= @uwsgi_processes %>

# Give the processes short process names
auto-procname=true
procname-prefix-spaced=zulip-django

# Longest response allowed, in seconds, before killing the worker
harakiri=55



# Default buffer for client HTTP headers is 4k, and nginx gets a 502
# if the client sends more.  Set this high; nginx limits headers to
# 32k, and will 400 requests with more than that.
buffer-size=65535

# The master process will buffer requests with bodies longer than 4096
# bytes, freeing up workers from hanging around waiting to read them.
post-buffering=4096



# Create a socket to serve very basic UWSGI stats
stats=/home/zulip/deployments/uwsgi-stats


# Silence warnings from clients closing their connection early
ignore-sigpipe = true
ignore-write-errors = true
disable-write-exception = true