Class: Zold::Routines::Reconnect

Inherits:
Object
  • Object
show all
Defined in:
lib/zold/commands/routines/reconnect.rb

Overview

Reconnect routine.

Author

Yegor Bugayenko ([email protected])

Copyright

Copyright © 2018 Yegor Bugayenko

License

MIT

Instance Method Summary collapse

Constructor Details

#initialize(opts, remotes, farm = Zold::Farm::Empty.new, log: Log::NULL) ⇒ Reconnect

Returns a new instance of Reconnect.



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# File 'lib/zold/commands/routines/reconnect.rb', line 33

def initialize(opts, remotes, farm = Zold::Farm::Empty.new, log: Log::NULL)
  @opts = opts
  @remotes = remotes
  @farm = farm
  @log = log
end

Instance Method Details

#exec(step = 0) ⇒ Object 



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# File 'lib/zold/commands/routines/reconnect.rb', line 40

def exec(step = 0)
  sleep(60) unless @opts['routine-immediately']
  cmd = Zold::Remote.new(remotes: @remotes, log: @log, farm: @farm)
  args = ['remote', "--network=#{Shellwords.escape(@opts['network'])}", '--ignore-ping']
  score = @farm.best[0]
  args << "--ignore-node=#{Shellwords.escape("#{score.host}:#{score.port}")}" if score
  cmd.run(args + ['masters']) unless @opts['routine-immediately']
  return if @opts['routine-immediately'] && @remotes.all.empty?
  cmd.run(args + ['select'])
  if (step % 10).zero?
    @log.info("It is round ##{step}, time to update the list of remotes")
    update(cmd, args)
  end
  if @remotes.all.any? { |r| r[:errors] > Zold::Remotes::TOLERANCE }
    @log.info('There are a few remote nodes with too many errors, it\'s time to update')
    update(cmd, args)
  else
    @log.debug("All #{@remotes.all.count} remote nodes are still more or less error-free, won't update")
  end
  if @remotes.all.count < Zold::Remotes::MAX_NODES / 2
    @log.info("There are just #{@remotes.all.count} remotes in the list, time to update")
    update(cmd, args)
  end
  cmd.run(args + ['trim'])
  cmd.run(args + ['select'])
  @log.info("Reconnected, there are #{@remotes.all.count} remote notes: \
#{@remotes.all.map { |r| "#{r[:host]}:#{r[:port]}/#{r[:score]}/#{r[:errors]}" }.join(', ')}")
end