mirror of
https://github.com/zulip/zulip.git
synced 2025-10-23 16:14:02 +00:00
01664a1a10
This allows restart-server, before moving the new config into place, to perform a diff and only restart the affected Tornado ports.
30 lines
1.3 KiB
Bash
Executable File
30 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
|
|
set -e
|
|
|
|
# Stand up the new zulip-tornado supervisor instances, and write out
|
|
# the newly generated config files, with .tmp suffix
|
|
SUPPRESS_SHARDING_NOTICE=1 "$(dirname "$0")/zulip-puppet-apply" -f
|
|
|
|
# Verify, before we move them into place
|
|
if ! [ -e /etc/zulip/nginx_sharding_map.conf.tmp ] || ! [ -e /etc/zulip/sharding.json.tmp ]; then
|
|
echo "No sharding updates found to apply."
|
|
exit 1
|
|
fi
|
|
|
|
# In the ordering of operations below, the crucial detail is that
|
|
# Django, Tornado, and workers need to be restarted before reloading
|
|
# nginx. Django and Tornado have in-memory maps of which realm belongs
|
|
# to which shard. Reloading nginx will cause users' tornado requests
|
|
# to be routed according to the new sharding scheme. If that happens
|
|
# before Django is restarted, updating its realm->shard map, users on
|
|
# realms whose shard has changed will have their tornado requests
|
|
# handled by the new tornado process, while Django will still use the
|
|
# old process for its internal communication with tornado when
|
|
# servicing the user's requests. That's a bad state that leads to
|
|
# clients getting into reload loops ending in crashing on 500 response
|
|
# while Django is restarting. For this reason it's important to
|
|
# reload nginx only after Django and Tornado.
|
|
"$(dirname "$0")/restart-server" --skip-client-reloads --tornado-reshard
|
|
service nginx reload
|