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#!/usr/bin/env ruby
# frozen_string_literal: true
require 'dnsruby'
require 'thread'
#Dnsruby.log.level = Logger::DEBUG
# speed up the repro
NFILES = 30
nfiles, _ = Process.getrlimit(Process::RLIMIT_NOFILE)
Process.setrlimit(Process::RLIMIT_NOFILE, NFILES) if nfiles > NFILES
NAMESERVERS = ["192.31.80.30"]
Thread.new {
res = Dnsruby::Resolver.new(nameserver: NAMESERVERS, do_caching: false, query_timeout: 5)
loop do
begin
res.query("blahblahblah.com.edgekey.net", "CNAME")
rescue Dnsruby::ResolvError
end
sleep 0.2
end
}
loop do
# system("ls -l /proc/#{Process.pid}/fd/")
system("lsof -p #{Process.pid} | wc -l")
File.open("/") { |_| }
sleep 1
end
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