ERR value is not an integer or out of rang

[morgoth]

When trying the prorate gem, I'm running into redis error:

require "prorate"
require "async"

Async do |task|
  11.times do |i|
    task.async do
      t = Prorate::Throttle.new(
          redis: $redis,
          logger: Rails.logger,
          name: "throttler",
          limit: 10,
          period: 1,
          block_for: 0.5
      )
      t << "counter"
      t.throttle!
    end
  end
end.wait

Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
Applying throttle counter throttler
    8m    error: Async::Task [oid=0xaca8] [ec=0xacbc] [pid=742358] [2022-03-22 15:57:27 +0100]
               |   Redis::CommandError: ERR Error running script (call to f_18f5304b307c1151f10cef5f9757e8cf742c37b7): @user_script:51: ERR value is not an integer or out of range
               |   → /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/redis-4.6.0/lib/redis/client.rb:162 in `call'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/redis-4.6.0/lib/redis.rb:263 in `block in send_command'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/redis-4.6.0/lib/redis.rb:262 in `synchronize'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/redis-4.6.0/lib/redis.rb:262 in `send_command'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/redis-4.6.0/lib/redis/commands/scripting.rb:110 in `_eval'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/redis-4.6.0/lib/redis/commands/scripting.rb:97 in `evalsha'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/prorate-0.7.1/lib/prorate/throttle.rb:146 in `block in run_lua_throttler'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/prorate-0.7.1/lib/prorate/null_pool.rb:4 in `with'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/prorate-0.7.1/lib/prorate/throttle.rb:144 in `run_lua_throttler'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/prorate-0.7.1/lib/prorate/throttle.rb:91 in `throttle!'
               |     (irb):211 in `block (3 levels) in <top (required)>'
               |     /home/wojtek/.asdf/installs/ruby/3.1.1/lib/ruby/gems/3.1.0/gems/async-2.0.1/lib/async/task.rb:258 in `block in schedule'

so it throws out when it should throttle (on the 11 call).
Do you know what could be the cause?

[lorenzograndi4]

Hey @morgoth 👋

I suspect the :block_for value has to be an integer, not a float. Could you try?

[morgoth]

yes, this is it. So it is not possible to block for less time than 1s?