SIGINT sent to Redis when exiting Foreman

[jlecour]

Hi,

Here is my Procfile :

web: bundle exec unicorn -c config/unicorn/development.rb
postgre: postgres -D /usr/local/var/postgres
mail: mailcatcher --foreground
redis: redis-server --port 7777 --dir ./tmp/ --dbfilename redis-dump.rdb

So I have a Redis server started by Foreman.
When I exit Foreman (with Ctrl-C), Redis receives a SIGINT

12:17:57 web.1     | started with pid 61957
12:17:57 postgre.1 | started with pid 61958
12:17:57 mail.1    | started with pid 61959
12:17:57 redis.1   | started with pid 61960
12:17:57 redis.1   | [61960] 09 Feb 12:17:57.435 * Increased maximum number of open files to 10032 (it was originally set to 4864).
12:17:57 redis.1   |                 _._
12:17:57 redis.1   |            _.-``__ ''-._
12:17:57 redis.1   |       _.-``    `.  `_.  ''-._           Redis 2.8.19 (00000000/0) 64 bit
12:17:57 redis.1   |   .-`` .-```.  ```\/    _.,_ ''-._
12:17:57 redis.1   |  (    '      ,       .-`  | `,    )     Running in stand alone mode
12:17:57 redis.1   |  |`-._`-...-` __...-.``-._|'` _.-'|     Port: 7777
12:17:57 redis.1   |  |    `-._   `._    /     _.-'    |     PID: 61960
12:17:57 redis.1   |   `-._    `-._  `-./  _.-'    _.-'
12:17:57 redis.1   |  |`-._`-._    `-.__.-'    _.-'_.-'|
12:17:57 redis.1   |  |    `-._`-._        _.-'_.-'    |           http://redis.io
12:17:57 redis.1   |   `-._    `-._`-.__.-'_.-'    _.-'
12:17:57 redis.1   |  |`-._`-._    `-.__.-'    _.-'_.-'|
12:17:57 redis.1   |  |    `-._`-._        _.-'_.-'    |
12:17:57 redis.1   |   `-._    `-._`-.__.-'_.-'    _.-'
12:17:57 redis.1   |       `-._    `-.__.-'    _.-'
12:17:57 redis.1   |           `-._        _.-'
12:17:57 redis.1   |               `-.__.-'
12:17:57 redis.1   |
12:17:57 redis.1   | [61960] 09 Feb 12:17:57.438 # Server started, Redis version 2.8.19
12:17:57 redis.1   | [61960] 09 Feb 12:17:57.438 * DB loaded from disk: 0.000 seconds
12:17:57 redis.1   | [61960] 09 Feb 12:17:57.438 * The server is now ready to accept connections on port 7777
12:17:57 postgre.1 | LOG:  database system was shut down at 2015-02-09 12:17:53 CET
12:17:57 postgre.1 | LOG:  autovacuum launcher started
12:17:57 postgre.1 | LOG:  database system is ready to accept connections
12:17:58 web.1     | I, [2015-02-09T12:17:58.399967 #61957]  INFO -- : unlinking existing socket=/Users/jlecour/Projects/trocdechambre/tmp/pids/unicorn.sock
12:17:58 web.1     | I, [2015-02-09T12:17:58.400276 #61957]  INFO -- : listening on addr=/Users/jlecour/Projects/trocdechambre/tmp/pids/unicorn.sock fd=9
12:17:58 web.1     | I, [2015-02-09T12:17:58.401107 #61957]  INFO -- : listening on addr=0.0.0.0:3075 fd=10
12:17:58 web.1     | I, [2015-02-09T12:17:58.401220 #61957]  INFO -- : worker=0 spawning...
12:17:58 web.1     | I, [2015-02-09T12:17:58.402245 #61957]  INFO -- : master process ready
12:17:58 web.1     | I, [2015-02-09T12:17:58.403634 #61967]  INFO -- : worker=0 spawned pid=61967
12:17:58 web.1     | I, [2015-02-09T12:17:58.404084 #61967]  INFO -- : Refreshing Gem list
12:18:02 web.1     | I, [2015-02-09T12:18:02.531052 #61967]  INFO -- : worker=0 ready
^C12:18:05 redis.1   | [61960 | signal handler] (1423480685) Received SIGINT scheduling shutdown...
12:18:05 postgre.1 | LOG:  received fast shutdown request
12:18:05 postgre.1 | LOG:  aborting any active transactions
SIGINT received
12:18:05 system    | sending SIGTERM to all processes
12:18:05 redis.1   | exited with code 0
12:18:05 postgre.1 | exited with code 0
12:18:05 mail.1    | exited with code 0
12:18:05 web.1     | exited with code 0

You can see at 12:18:05 I hit Ctrl-C, then Redis and PostgreSQL receive a SIGINT before the system sends a SIGTERM to all processes.

I'm using Foreman 0.77.0.

PS : sometimes, the PostgreSQL process doesn't immediately receives the SIGINT and gets the SIGTERM. I don't know why.

[Shashwat986]

I'm still facing the same problem:

41822:C 13 May 20:24:24.629 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
41822:C 13 May 20:24:24.629 # Redis version=4.0.2, bits=64, commit=00000000, modified=0, pid=41822, just started
41822:C 13 May 20:24:24.629 # Configuration loaded
41822:M 13 May 20:24:24.630 * Increased maximum number of open files to 10032 (it was originally set to 256).
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 4.0.2 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6381
 |    `-._   `._    /     _.-'    |     PID: 41822
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

41822:M 13 May 20:24:24.632 # Server initialized
41822:M 13 May 20:24:29.219 * DB loaded from disk: 4.587 seconds
41822:M 13 May 20:24:29.219 * Ready to accept connections
^C41822:signal-handler (1526223280) Received SIGINT scheduling shutdown...
41822:signal-handler (1526223280) You insist... exiting now.