Class: CopyTaskThread
Instance Method Summary
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Methods inherited from BaseThread
#initialize
Constructor Details
This class inherits a constructor from BaseThread
Instance Method Details
#calc_avg_count ⇒ Object
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# File 'lib/daemon/copy_task_thread.rb', line 63
def calc_avg_count
$copy_cont_avg = ($copy_count + $copy_cont_avg) / 2.0
end
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#go(storage_name) ⇒ Object
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# File 'lib/daemon/copy_task_thread.rb', line 2
def go(storage_name)
return unless $tasks_copy[storage_name]
Thread.current[:tasks_processed] = 0 unless Thread.current[:tasks_processed]
while task = $tasks_copy[storage_name].shift do
$curr_tasks << task
$log.debug("CopyTaskThread(#{storage_name}): run task for item_storage ##{task.id}, copy_count=#{$copy_count}/#{$copy_cont_avg}, copy_speed=#{$copy_speed}")
make_copy(task)
$curr_tasks.delete(task)
$log.debug("CopyTaskThread(#{storage_name}): finish task for item_storage ##{task.id}")
Thread.current[:tasks_processed] += 1
exit if $exit_signal
end
end
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#make_copy(task) ⇒ Object
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# File 'lib/daemon/copy_task_thread.rb', line 16
def make_copy(task)
sleep 0.1 while $copy_count > FC::Var.get('daemon_copy_tasks_per_host_limit', 10).to_i
limit = FC::Var.get_current_speed_limit
speed_limit = nil
if limit
if $copy_count == 0
$copy_speed = 0
speed_limit = limit * 0.75
elsif $copy_count <= $copy_cont_avg && (speed_limit = limit / $copy_cont_avg) < limit * 1.1 - $copy_speed
else
while (speed_limit = (limit - $copy_speed) * 0.75) < limit*0.1 do
sleep 0.1
end
end
end
$copy_count += 1
$copy_speed += speed_limit if speed_limit
calc_avg_count()
storage = $storages.detect{|s| s.name == task.storage_name}
begin
item = FC::Item.find(task.item_id)
rescue Exception => e
if e.message.match('Record not found')
$log.warn("Item ##{task.item_id} not found before copy")
return nil
else
raise e
end
end
return nil unless item && item.status == 'ready'
src_item_storage = FC::ItemStorage.where("item_id = ? AND status = 'ready'", item.id).sample
unless src_item_storage
$log.warn("Item ##{item.id} #{item.name} has no ready item_storage")
return nil
end
src_storage = $all_storages.detect{|s| s.name == src_item_storage.storage_name}
$log.debug("Copy from #{src_storage.name} to #{storage.name} #{storage.path}#{item.name}")
item.copy_item_storage(src_storage, storage, task, false, speed_limit)
rescue Exception => e
error "Copy item_storage error: #{e.message}; #{e.backtrace.join(', ')}", :item_id => task.item_id, :item_storage_id => task.id
$curr_tasks.delete(task)
ensure
$copy_count -= 1 if $copy_count > 0
$copy_speed -= speed_limit if speed_limit
end
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