White-space in process name & monit

[s0undt3ch]

I'm unable to monitor thin with monit because it's process name contains whitespace.

# ps aux | grep thin
gitosis  28109  0.0 15.3 253032 117244 ?       D    Jun11   0:33 thin server (/usr/share/redmine/tmp/sockets/thin.0.socket)                                                                                                                                                                                                                                                                                      
gitosis  28115  0.0  0.1 229912   872 ?        S    Jun11   0:14 thin server (/usr/share/redmine/tmp/sockets/thin.1.socket)

My monit rc file for thin.

check process thin-0
    with pidfile /var/run/redmine/thin.0.pid
    start program = "/etc/init.d/thin start"
    stop program = "/etc/init.d/thin stop"
    if totalmem > 150.0 MB for 10 cycles then restart

    if failed unixsocket /var/run/redmine/sockets/default/thin.0.socket then restart
    if failed unixsocket /var/run/redmine/sockets/default/thin.1.socket then restart

    if cpu is greater than 40% for 2 cycles then alert
    if cpu usage > 95% for 3 cycles then restart
    if 5 restarts within 10 cycles then timeout

Here's how monit behaves:

# monit validate
'thin-0' process is not running
'thin-0' trying to restart
'thin-0' start: /etc/init.d/thin
[start] /etc/thin1.8/redmine.yml ...
Starting server on /usr/share/redmine/tmp/sockets/thin.0.socket ... 
/var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/daemonizing.rb:171:in `remove_stale_pid_file': /usr/share/redmine/tmp/pids/thin.0.pid already exists, seems like it's already running (process ID: 28109). Stop the process or delete /usr/share/redmine/tmp/pids/thin.0.pid. (Thin::PidFileExist)
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/daemonizing.rb:42:in `daemonize'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/controllers/controller.rb:61:in `start'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/runner.rb:185:in `send'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/runner.rb:185:in `run_command'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/runner.rb:151:in `run!'
        from /var/lib/gems/1.8/gems/thin-1.2.11/bin/thin:6
        from /usr/local/bin/thin:19:in `load'
        from /usr/local/bin/thin:19
Starting server on /usr/share/redmine/tmp/sockets/thin.1.socket ... 
/var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/daemonizing.rb:171:in `remove_stale_pid_file': /usr/share/redmine/tmp/pids/thin.1.pid already exists, seems like it's already running (process ID: 28115). Stop the process or delete /usr/share/redmine/tmp/pids/thin.1.pid. (Thin::PidFileExist)
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/daemonizing.rb:42:in `daemonize'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/controllers/controller.rb:61:in `start'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/runner.rb:185:in `send'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/runner.rb:185:in `run_command'
        from /var/lib/gems/1.8/gems/thin-1.2.11/lib/thin/runner.rb:151:in `run!'
        from /var/lib/gems/1.8/gems/thin-1.2.11/bin/thin:6
        from /usr/local/bin/thin:19:in `load'
        from /usr/local/bin/thin:19
^C'thin-0' failed to start

It also does not work if I make monit check the process thin nor "thin server (/usr/share/redmine/tmp/sockets/thin.1.socket)". The first because there no such process, the second because white-space and commas are not allowed in process names on monitrc files.

[macournoyer]

Have you checked the monit examples in https://github.com/macournoyer/thin/blob/master/example/monit_sockets ?

[s0undt3ch]

Yes, I have, they failed. Re-installed thin from gem and not from distro. Will try again to see if it now works

[s0undt3ch]

Funny, it now works?!!?!

Thanks!