x0bandeira

• body file path: %s/\(body\: \)\(File.\+\)\(Rails\.root\), \([^)]\+\))/\1\3.join(\4/g
• headers top-level: %s/\(content_type\:[^,)]\+\)/headers: { \1 }/g
• bundle exec rspec `git status --porcelain | sed -e "s/ M /.\//" | grep "spec\.rb"`

x0bandeira

-- KEYS[1] namespace/key
-- ARGV[1] current timestamp
-- ARGV[2] max uses per second
local t = tonumber(redis.call("get", KEYS[1] .. ":t")) or 0
local c = tonumber(redis.call("get", KEYS[1] .. ":c")) or 0
local current = tonumber(ARGV[1])
local max = tonumber(ARGV[2])
if current - t >= 1 then
  redis.call("mset", KEYS[1] .. ":t", current, KEYS[1] .. ":c", 1)
  return {current, 1, 1}

x0bandeira

Install iodbc /usr fix for Mac, third link

http://www.iodbc.org/dataspace/iodbc/wiki/iODBC/Downloads#Mac_OS_X

Now you build psqlODBC

curl http://ftp.postgresql.org/pub/odbc/versions/src/psqlodbc-09.03.0210.tar.gz -o psqlodbc-09.03.0210.tar.gz
tar -xzf psqlodbc-09.03.0210.tar.gz
cd psqlodbc-09.03.0210.tar.gz

./configure --with-iodbc=/usr/local/iODBC/ --enable-pthreads --without-libpq

x0bandeira

Check how many pandas your project has killed already: $ grep -ro inject app lib | wc -l

And please, pretty please, save a panda, use #reduce.

x0bandeira

• https://blog.engineyard.com/2011/concurrency-in-jruby/
• http://en.wikipedia.org/wiki/Light-weight_process
• http://en.wikipedia.org/wiki/Threaded_code
• http://en.wikipedia.org/wiki/Thread_%28computer_science%29
• http://ruby-doc.org/core-2.1.1/Fiber.html
• http://ruby-doc.org/core-2.1.0/Thread.html

x0bandeira

• https://2014.spaceappschallenge.org/challenge/climate-and-my-neighborhood/
• http://data.nasa.gov/
• http://aws.typepad.com/aws/2013/11/process-earth-science-data-on-aws-with-nasa-nex.html
• https://portal.nccs.nasa.gov/portal_home/published/NEX.html
• https://portal.nccs.nasa.gov/portal_home/published/NEX-DCP30_Tech_Note_v0.pdf
• https://nex.nasa.gov/nex/projects/1348/
• https://nex.nasa.gov/nex/projects/1348/wiki/general_data_access_and_apis/

x0bandeira

 ........                      ........
 ........                      ........
 ........      how . big       ........
 ........                      ........
 ........    -----    -----    ........
 ........      I   .  |____    ........
 ........      I          |    ........
 ........    -----    -----    ........
 ........                      ........
 ........  the conclusion...?  ........

x0bandeira

Links

• http://www.xzilla.net/blog/2008/Jul/Index-pruning-techniques.html
• https://github.com/heroku/heroku-pg-extras

x0bandeira

entries.each do |e|
  begin
    do_stuff(e)
  rescue => error
    $redis.lpush("failed_strip", e.id) # will create the list and/or append the value
end

# counting
puts "failed: " + $redis.llen("failed_strip")

x0bandeira

# http://redis.io/commands/rpoplpush

module Resque
  def self.move_queue(source, destination)
    r = Resque.redis
    r.llen("queue:#{source}").times do
      r.rpoplpush("queue:#{source}", "queue:#{destination}")
    end
  end
end