gitlab-org--gitlab-foss/config/initializers/sidekiq_cluster.rb

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if ENV['ENABLE_SIDEKIQ_CLUSTER'] && Gitlab.ee?
Thread.new do
Thread.current.abort_on_exception = true
parent = Process.ppid
loop do
sleep(5)
# In cluster mode it's possible that the master process is SIGKILL'd. In
# this case the parent PID changes and we need to terminate ourselves.
if Process.ppid != parent
Process.kill(:TERM, Process.pid)
break
end
end
end
end