Different restart commands based on the restart condition

[Nitesh Goel]

Hey Guys

I am monitoring a process where my restart command is based on the restart condition failed. E.g.

If memory usage too high:

w.restart = "command 1"

if cpu usage too high:

w.restart = "command 2"

Is there a way to configure a watch as such?

Thanks.

[Nuno Valente]

Hi Nitesh. Sure you can.

You can find examples in the god homepage but i'll leave you one. You just need to wrap your conditions in a block.

w.restart_if do |restart|

        

        #Custom conditon

        restart.condition(:log_watcher) do |c|

          c.monitor_file w.log.to_s

          c.add_regexp(/.+OutOfMemory.+/)

        end

        #Built-in god conditon

        restart.condition(:memory_usage) do |c|

              c.above = 100.megabytes

              c.times = [3, 5] #3 out of 5 measurements 

        end

        #Built-in god conditon

        restart.condition(:cpu_usage) do |c|

          c.above = 98.percent

          c.times = 3 # 3 consecutive measurements

        end

end

Happy monitoring.

Best regards,

Nuno Valente.

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[Nitesh Goel]

Hi Nuno

Thanks. What I meant was this:

Currently I can specify a start, stop, and restart command in god.

I want to specify multiple different restart commands.

E.g.

Let's say I am monitoring the thin web server. If my box is out of memory, I want to restart with 5 servers, but if my box is out of cpu, I want to start with 3 servers (don't ask why .. contrived example).

So ..

w.restart1 = thin restart --servers 5

w.restart2 = thin restart --servers 3

How do I inject the restart command to run in the restart_if block?

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