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module Oxidized
require 'oxidized/job'
require 'oxidized/jobs'
class Worker
def initialize nodes
@nodes = nodes
@jobs = Jobs.new(Oxidized.config.threads, Oxidized.config.interval, @nodes)
Thread.abort_on_exception = true
end
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 #{@jobs.size}, Want: #{@jobs.want}"
# 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
Oxidized.logger.debug("lib/oxidized/worker.rb: #{@jobs.size} jobs running in parallel") unless @jobs.empty?
end
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
output = node.output.new
if output.store node.name, job.config,
:msg => msg, :user => node.user, :group => node.group
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
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
end
end
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