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[manual] Use the same socket across server restarts 

We let supervisor create the socket for us by making humbug-django a
fcig-program.  Unfortunately, supevisor doesn't support putting
fcgi-programs in groups (see
https://github.com/Supervisor/supervisor/issues/148), so we have to
restart tornado and django separately.

To deploy, copy the config files over and restart nginx and
supervisor (via stopping and then starting it because restart is
broken).  I believe the automated restart as part of
update-deployment will fail because of the way supervisor treats
programs in groups.  If so, after restarting supervisor, you will
also need to run restart-server manually to fill the caches and then
delete the lock directory in humbug-deployments.

(imported from commit bfb5db7dd42dcbc4bfefa2944355b3cbb2ef9104)
This commit is contained in:
Zev Benjamin 2013-05-22 18:04:00 -04:00
parent f69762e612
commit cce8dfab84
3 changed files with 9 additions and 7 deletions
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2
servers/puppet/modules/humbug/files/nginx/humbug-include/app
View File

@ -30,6 +30,6 @@ location ~ /json/get_updates|/api/v1/get_messages|/api/v1/messages/latest|/json/
# Send everything else to Django via FastCGI
location / {
include fastcgi_params;
fastcgi_pass unix:/home/humbug/humbug-deployments/current/fastcgi-socket;
fastcgi_pass unix:/home/humbug/humbug-deployments/fastcgi-socket;
fastcgi_split_path_info ^()(.*)$;
}

10
servers/puppet/modules/humbug/files/supervisord/conf.d/humbug.conf
View File

@ -7,8 +7,8 @@
; Note: shell expansion ("~" or "$HOME") is not supported. Environment
; variables can be expanded using this syntax: "%(ENV_HOME)s".
[program:humbug-django-fcgi]
command=python /home/humbug/humbug-deployments/current/manage.py runfcgi socket=/home/humbug/humbug-deployments/current/fastcgi-socket daemonize=False maxchildren=20 ; the program (relative uses PATH, can take args)
[fcgi-program:humbug-django]
command=python /home/humbug/humbug-deployments/current/manage.py runfcgi daemonize=False maxchildren=20 ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
;numprocs=1 ; number of processes copies to start (def 1)
;directory=/tmp ; directory to cwd to before exec (def no cwd)
@ -38,6 +38,9 @@ stderr_logfile_backups=10 ; # of stderr logfile backups (default 10)
;environment=A=1,B=2 ; process environment additions (def no adds)
;serverurl=AUTO ; override serverurl computation (childutils)
directory=/home/humbug/humbug/
socket=unix:///home/humbug/humbug-deployments/fastcgi-socket
socket_owner=humbug:humbug
socket_mode=0700
[program:humbug-tornado]
command=python /home/humbug/humbug-deployments/current/manage.py runtornado localhost:9993
@ -103,9 +106,6 @@ directory=/home/humbug/humbug/
; create one or more 'real' group: sections to create "heterogeneous"
; process groups.
[group:humbug-web]
programs=humbug-django-fcgi,humbug-tornado ; each refers to 'x' in [program:x] definitions
[group:humbug-workers]
programs=humbug-events-user-activity,humbug-events-subscribe-new-users,humbug-events-confirmation-emails,humbug-events-missedmessage_reminders ; each refers to 'x' in [program:x] definitions

4
tools/restart-server
View File

@ -26,7 +26,9 @@ subprocess.check_call(["python", "./manage.py", "send_stats", "incr", "events.se
# the other worker processes.
logging.info("Killing daemons")
subprocess.check_call(["supervisorctl", "stop", "humbug-workers:*"])
subprocess.check_call(["supervisorctl", "restart", "humbug-web:*"])
subprocess.check_call(["supervisorctl", "stop", "humbug-django"])
subprocess.check_call(["supervisorctl", "restart", "humbug-tornado"])
subprocess.check_call(["supervisorctl", "start", "humbug-django"])
subprocess.check_call(["supervisorctl", "start", "humbug-workers:*"])
logging.info("Flushing memcached")