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# Rails ActiveRecord aware fork() wrapper | |
$child_pids = [] | |
def wait_for_child(pid=nil) | |
begin | |
pid, child_result = (pid.nil? ? Process.wait2 : Process.waitpid2(pid)) | |
unless child_result.exitstatus.zero? | |
$child_pids.each {|child_pid| Process.kill('TERM', child_pid) rescue true} | |
raise "Child PID:#{pid} exited with status #{child_result.exitstatus} - batch aborting" | |
end | |
rescue Errno::ECHILD |
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# If your workers are inactive for a long period of time, they'll lose | |
# their MySQL connection. | |
# | |
# This hack ensures we re-connect whenever a connection is | |
# lost. Because, really. why not? | |
# | |
# Stick this in RAILS_ROOT/config/initializers/connection_fix.rb (or somewhere similar) | |
# | |
# From: | |
# http://coderrr.wordpress.com/2009/01/08/activerecord-threading-issues-and-resolutions/ |