Class: Oxidized::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/oxidized/worker.rb

Instance Method Summary collapse

Constructor Details

#initialize(nodes) ⇒ Worker

Returns a new instance of Worker.



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# File 'lib/oxidized/worker.rb', line 5

def initialize nodes
  @jobs_done  = 0
  @nodes      = nodes
  @jobs       = Jobs.new(Oxidized.config.threads, Oxidized.config.interval, @nodes)
  @nodes.jobs = @jobs
  Thread.abort_on_exception = true
end

Instance Method Details

#process(job) ⇒ Object 



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# File 'lib/oxidized/worker.rb', line 39

def process job
  node = job.node
  node.last = job
  node.stats.add job
  @jobs.duration job.time
  node.running = false

  if job.status == :success
    @jobs_done += 1 # needed for :nodes_done hook
    Oxidized.Hooks.handle :node_success, :node => node,
                                         :job => job
    msg = "update #{node.name}"
    msg += " from #{node.from}" if node.from
    msg += " with message '#{node.msg}'" if node.msg
    output = node.output.new
    if output.store node.name, job.config,
                    :msg => msg, :email => node.email, :user => node.user, :group => node.group
      node.modified
      Oxidized.logger.info "Configuration updated for #{node.group}/#{node.name}"
      Oxidized.Hooks.handle :post_store, :node => node,
                                         :job => job,
                                         :commitref => output.commitref
    end
    node.reset
  else
    msg = "#{node.name} status #{job.status}"
    if node.retry < Oxidized.config.retries
      node.retry += 1
      msg += ", retry attempt #{node.retry}"
      @nodes.next node.name
    else
      # Only increment the @jobs_done when we give up retries for a node (or success).
      # As it would otherwise cause @jobs_done to be incremented with generic retries.
      # This would cause :nodes_done hook to desync from running at the end of the nodelist and
      # be fired when the @jobs_done > @nodes.count (could be mid-cycle on the next cycle).
      @jobs_done += 1
      msg += ", retries exhausted, giving up"
      node.retry = 0
      Oxidized.Hooks.handle :node_fail, :node => node,
                                        :job => job
    end
    Oxidized.logger.warn msg
  end
rescue NodeNotFound
  Oxidized.logger.warn "#{node.name} not found, removed while collecting?"
end

#work ⇒ Object 



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# File 'lib/oxidized/worker.rb', line 13

def work
  ended = []
  @jobs.delete_if { |job| ended << job if not job.alive? }
  ended.each      { |job| process job }
  @jobs.work

  while @jobs.size < @jobs.want
    Oxidized.logger.debug "lib/oxidized/worker.rb: Jobs running: #{@jobs.size} of #{@jobs.want} - ended: #{@jobs_done} of #{@nodes.size}"
    # ask for next node in queue non destructive way
    nextnode = @nodes.first
    unless nextnode.last.nil?
      # Set unobtainable value for 'last' if interval checking is disabled
      last = Oxidized.config.interval == 0 ? Time.now.utc + 10 : nextnode.last.end
      break if last + Oxidized.config.interval > Time.now.utc
    end
    # shift nodes and get the next node
    node = @nodes.get
    node.running? ? next : node.running = true
    @jobs.push Job.new node
    Oxidized.logger.debug "lib/oxidized/worker.rb: Added #{node.name} to the job queue"
  end

  run_done_hook if is_cycle_finished?
  Oxidized.logger.debug("lib/oxidized/worker.rb: #{@jobs.size} jobs running in parallel") unless @jobs.empty?
end