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
  @nodes   = nodes
  @jobs    = Jobs.new CFG.threads, CFG.interval, @nodes
  Thread.abort_on_exception = true
end

Instance Method Details

#process(job) ⇒ Object 



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# File 'lib/oxidized/worker.rb', line 30

def process job
  node = job.node
  node.last = job
  node.stats.add job
  @jobs.duration job.time
  node.running = false
  if job.status == :success
    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
    if node.output.new.store node.name, job.config,
                          :msg => msg, :user => node.user, :group => node.group
      Log.info "Configuration updated for #{node.group}/#{node.name}"
      Oxidized.Hooks.handle :post_store, :node => node,
                                         :job => job
    end
    node.reset
  else
    msg = "#{node.name} status #{job.status}"
    if node.retry < CFG.retries
      node.retry += 1
      msg += ", retry attempt #{node.retry}"
      @nodes.next node.name
    else
      msg += ", retries exhausted, giving up"
      node.retry = 0
      Oxidized.Hooks.handle :node_fail, :node => node,
                                        :job => job
    end
    Log.warn msg
  end
rescue NodeNotFound
  Log.warn "#{node.name} not found, removed while collecting?"
end

#work ⇒ Object 



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# File 'lib/oxidized/worker.rb', line 11

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
    Log.debug "Jobs #{@jobs.size}, Want: #{@jobs.want}"
    # ask for next node in queue non destructive way
    nextnode = @nodes.first
    unless nextnode.last.nil?
      break if nextnode.last.end + CFG.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
  end
end