Thanks Colin.
Messing with your monkey patch a bit, it seems the modification to
spawn() isn't required for me to get god to work on CENTOS. Just
patching the fetch_system_profiler() fixes it.
I managed to simplify it down to this so far:
module God
module System
class SlashProcPoller
def self.usable?
false
end
end
end
end
So it's obviously a bug in that poller, i'll start debugging and see
if I can't dig up a patch for the god repo.
regards,
Danial
On Nov 7, 1:21 am, "Colin Steele" <[EMAIL PROTECTED]> wrote:
> module God
> module System
> class Process
> alias_method :orig_fetch_system_poller, :fetch_system_poller
> def fetch_system_poller
> if `hostname` =~ /YOUR CENTOS HOST(S) HERE/
> PortablePoller
> else
> orig_fetch_system_poller
> end
> end
> end
> end
> class Process
> def spawn(command)
> fork do
> uid_num = Etc.getpwnam(self.uid).uid if self.uid
> gid_num = Etc.getgrnam(self.gid).gid if self.gid
>
> ::Process.groups = [gid_num] if self.gid
> ::Process::Sys.setgid(gid_num) if self.gid
> ::Process::Sys.setuid(uid_num) if self.uid
>
> $0 = command
> STDIN.reopen "/dev/null"
> STDOUT.reopen file_in_chroot(self.log), "a"
> STDERR.reopen STDOUT
>
> # close any other file descriptors
> 3.upto(256){|fd| IO::new(fd).close rescue nil}
>
> if self.env && self.env.is_a?(Hash)
> self.env.each do |(key, value)|
> ENV[key] = value
> end
> end
>
> exec command unless command.empty?
> end
> end
> end
> end
>
>
>
> On Thu, Nov 6, 2008 at 2:01 AM, Tigris <[EMAIL PROTECTED]> wrote:
>
> > On Sep 14, 1:06 pm, None <[EMAIL PROTECTED]> wrote:
> >> I've found and fixed my problem(s). Turns out the let-god-demonize
> >> thing was a red herring. The fixes were to use the PortablePoller on
> >> CENTOS, and to modify God::System::Process#spawn not to perform chroot
> >> and chdir. Voila!
>
> > I don't suppose anyone can explain a bit better on how to achieve
> > this? I'm experiencing the same problems outlined here on CENTOS also.
> > Kill the processes manually after loading god and it doesn't even see
> > the fact they died, nor do I see it polling in the logs, it just sits
> > there apparently doing nothing.
>
> > #######################
> > def make_fail_safe(watcher)
> > watcher.lifecycle do |on|
> > on.condition(:flapping) do |c|
> > c.to_state = [:start, :restart]
> > c.times = 5
> > c.within = 5.minutes
> > c.transition = :unmonitored
> > c.retry_in = 10.minutes
> > c.retry_times = 5
> > c.retry_within = 2.hours
> > end
> > end
> > end
>
> > God.watch do |w|
> > w.name = 'apache'
> > w.pid_file = '/var/run/httpd.pid'
> > w.interval = 60.seconds
>
> > w.start = '/etc/init.d/httpd start'
> > w.stop = '/etc/init.d/httpd stop'
> > w.restart = '/etc/init.d/httpd graceful'
>
> > w.start_grace = 20.seconds
> > w.restart_grace = 20.seconds
>
> > w.behavior(:clean_pid_file)
>
> > w.restart_if do |r|
> > r.condition(:cpu_usage) {|c| c.notify = 'developers'; c.above =
> > 80.percent; c.times = 5}
> > r.condition(:cpu_usage) {|c| c.notify = 'developers'; c.above =
> > 60.percent; c.times = 2}
> > r.condition(:memory_usage){|c| c.notify = 'developers'; c.above =
> > 500.megabytes; c.times = 5}
> > r.condition(:http_response_code) do |c|
> > c.notify = 'developers'
> > c.host = 'www.example.com'
> > c.path = '/god'
> > c.code_is_not = 200
> > c.timeout = 2.seconds
> > end
> > end
>
> > make_fail_safe(w)
> > end
>
> > God.contact(:email) do |c|
> > c.name = 'Me'
> > c.email = '[EMAIL PROTECTED]'
> > c.group = 'developers'
> > end
> > #######################
>
> > regards,
> > Danial
>
> --
> Colin Steelewww.colinsteele.org
> [EMAIL PROTECTED]
> Ken Kesey - "Ritual is necessary for us to know anything."
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