passer-b

require 'resolv'

Resolv::DNS.new.each_address('example.com') { |addr| puts "#{addr}" }
# 93.184.216.34
# 2606:2800:220:1:248:1893:25C8:1946

require 'packable'

Resolv::DNS.new.each_address('example.com') { |addr| puts "#{addr}" }
# no output

passer-b

require 'bigdecimal'
require 'enumerable/statistics'

array = [*0..100].inject([]) { |memo, n|
  memo << {
    timestamp: Time.now,
    value:     rand(0..100)
  }
  memo
}

passer-b

CREATE KEYSPACE kairosdb WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}  AND durable_writes = true;

CREATE TABLE kairosdb.data_points (
    key blob,
    column1 blob,
    value blob,
    PRIMARY KEY (key, column1)
) WITH COMPACT STORAGE
    AND CLUSTERING ORDER BY (column1 ASC)
    AND bloom_filter_fp_chance = 0.01