How to find Sidekiq is running or not

Question

In one of my project i am using Sidekiq

Is there any inbuilt Sidekiq console method/method that helps me to find whether sidekiq is running or not.

My requirement is kind of a pre check condition where if Sidekiq is not running i will raise a error.

I tried using the grep like

'ps -ef | grep sidekiq'

but it's not solving my purpose.

The method i am looking for should be something like:

Sidekiq.is_running?

Thanks in advance.

I also Tried

Sidekiq not running

1.9.3p392 :021 > system 'ps aux | grep sidekiq'
ankitgupta      6683   0.0  0.0  2432768    600 s001  R+   11:47AM   0:00.00 grep sidekiq
ankitgupta      6681   0.0  0.0  2433432    916 s001  S+   11:47AM   0:00.01 sh -c ps aux | grep sidekiq
 => true

Sidekiq is running

1.9.3p392 :022 > system 'ps aux | grep sidekiq'
ankitgupta      6725   0.0  0.0  2432768    600 s001  S+   11:57AM   0:00.00 grep sidekiq
ankitgupta      6723   0.0  0.0  2433432    916 s001  S+   11:57AM   0:00.00 sh -c ps aux | grep sidekiq
ankitgupta      6707   0.0  1.3  3207416 111608 s002  S+   11:56AM   0:07.46 sidekiq 2.11.2 project_name [0 of 25 busy]  
 => true

It is always returning true.. I want to catch the process when it runs

@SaidKaldybaev , see my question.. i updated with what i tried (ur suggestion ). It always gives me true — AnkitG, May 07 '13 at 10:54
http://stackoverflow.com/questions/15843637/how-to-tell-if-sidekiq-is-connected-to-redis-server — HelloWorld, Mar 10 '14 at 16:05

score 41 · Answer 1 · answered Feb 07 '14 at 13:11

41

A little trick:

ps aux | grep '[s]idekiq'

Hope it works

answered Feb 07 '14 at 13:11

dan

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Curious - why the `s` needs to be in `[]`? – Zulhilmi Zainudin May 02 '20 at 07:43
2

good explanation here: https://askubuntu.com/questions/153419/how-does-this-tricky-bracket-expression-in-grep-work – dan May 21 '20 at 23:40

score 8 · Answer 2 · answered Feb 01 '17 at 07:51

Ideally you can do this directly from ruby itself. Put this in some rake task or standalone script (don't forget to specify Sidekiq connection details)

ps = Sidekiq::ProcessSet.new
ps.size # => 2
ps.each do |process|
  p process['busy']     # => 3
  p process['hostname'] # => 'myhost.local'
  p process['pid']      # => 16131
end
ps.each(&:quiet!) # equivalent to the USR1 signal
ps.each(&:stop!) # equivalent to the TERM signal

From https://github.com/mperham/sidekiq/wiki/API#processes

score 2 · Answer 3 · edited May 23 '17 at 12:26

2

See this question for how to filter ps output using grep, while eliminating the grep command from the the output.

edited May 23 '17 at 12:26

Community

1
1

answered Nov 15 '13 at 16:35

Pete TerMaat

3,185
25
15

score 1 · Answer 4 · answered May 07 '13 at 11:24

1

I see, try this out:

module Process
  class << self
    def is_running?(pid)
      begin
        Process.kill(0, pid)
        true
      rescue Errno::ESRCH
        false
      end
    end
  end
end

1.9.3p392 :001 > puts `ps aux | grep -i [s]idekiq`

It'll return you pid like: 12247, and you can check if it's running:

Process.is_running?(12247) // true | false

answered May 07 '13 at 11:24

Said Kaldybaev

9,380
8
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1

I wanted to check this on fly and didn't wanted to depend on PID so i created the method from your idea (Updated your Answer with what "I used" ) and returning matchdata. – AnkitG May 09 '13 at 09:19

score 1 · Answer 5 · edited Jan 17 '19 at 11:39

1

You can add the following lines to your config/routes.rb

require 'sidekiq/web'
mount Sidekiq::Web => '/sidekiq'

Start your server, open a browser and check your processess and your jobs

You can find it from Sidekiq Wiki

edited Jan 17 '19 at 11:39

Jax

1,839
3
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answered Jun 01 '18 at 12:43

Max Stephen

71
3

How to find Sidekiq is running or not

5 Answers5