Class: PerfectQueue::Multiprocess::ForkProcessor
- Inherits:
-
Object
- Object
- PerfectQueue::Multiprocess::ForkProcessor
- Defined in:
- lib/perfectqueue/multiprocess/fork_processor.rb
Instance Method Summary collapse
-
#initialize(runner, processor_id, config) ⇒ ForkProcessor
constructor
A new instance of ForkProcessor.
- #join ⇒ Object
- #keepalive ⇒ Object
- #logrotated ⇒ Object
- #restart(immediate, config) ⇒ Object
- #stop(immediate) ⇒ Object
Constructor Details
#initialize(runner, processor_id, config) ⇒ ForkProcessor
Returns a new instance of ForkProcessor.
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# File 'lib/perfectqueue/multiprocess/fork_processor.rb', line 23 def initialize(runner, processor_id, config) @runner = runner @processor_id = processor_id @stop = false @cpm = nil @last_fork_time = 0 restart(false, config) end |
Instance Method Details
#join ⇒ Object
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# File 'lib/perfectqueue/multiprocess/fork_processor.rb', line 97 def join while !try_join sleep (@child_kill_interval+1) / 2 # TODO end self end |
#keepalive ⇒ Object
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# File 'lib/perfectqueue/multiprocess/fork_processor.rb', line 56 def keepalive if @stop try_join return end if c = @cpm if c.killing_status != true # don't check status if killing status is immediate-killing begin # receive heartbeat keptalive = c.check_heartbeat(@child_heartbeat_limit) if !keptalive @log.error "Heartbeat broke out. Restarting child process id=#{@processor_id} pid=#{c.pid}." c.start_killing(true) end rescue EOFError @log.error "Heartbeat pipe is closed. Restarting child process id=#{@processor_id} pid=#{c.pid}." c.start_killing(true, @child_heartbeat_kill_delay) rescue @log.error "Unknown error: #{$!.class}: #{$!}: Restarting child process id=#{@processor_id} pid=#{c.pid}." $!.backtrace.each {|bt| @log.warn "\t#{bt}" } c.start_killing(true, @child_heartbeat_kill_delay) end end try_join end unless @cpm begin @cpm = fork_child rescue @log.error "Failed to fork child process id=#{@processor_id}: #{$!.class}: #{$!}" $!.backtrace.each {|bt| @log.warn "\t#{bt}" } end end nil end |
#logrotated ⇒ Object
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# File 'lib/perfectqueue/multiprocess/fork_processor.rb', line 104 def logrotated if c = @cpm c.send_signal(:CONT) end end |
#restart(immediate, config) ⇒ Object
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# File 'lib/perfectqueue/multiprocess/fork_processor.rb', line 34 def restart(immediate, config) @child_heartbeat_limit = config[:child_heartbeat_limit] || 60.0 @child_kill_interval = config[:child_kill_interval] || 2.0 @child_graceful_kill_limit = config[:child_graceful_kill_limit] || nil @child_fork_frequency_limit = config[:child_fork_frequency_limit] || 5.0 @child_heartbeat_kill_delay = config[:child_heartbeat_kill_delay] || 10 @log = config[:logger] @config = config # for child process if c = @cpm c.start_killing(immediate) end end |
#stop(immediate) ⇒ Object
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# File 'lib/perfectqueue/multiprocess/fork_processor.rb', line 48 def stop(immediate) @stop = true if c = @cpm c.start_killing(immediate) end self end |