Class: Norikra::CLI

Inherits:
Thor
  • Object
show all
Defined in:
lib/norikra/cli.rb

Constant Summary collapse

JVM_OPTIONS =

JVM defaults w/ ConcurrentGC:

 java -XX:+UseConcMarkSweepGC -XX:+PrintFlagsFinal -version
 (jruby does not modify flags)

CMSIncrementalMode: not recommended in Java8

CMSInitiatingOccupancyFraction: CMS threshold
CMSInitiatingOccupancyFraction = 100 - MinHeapFreeRatio + CMSTriggerRatio * MinHeapFreeRatio / 100
  default: MinHeapFreeRatio=40 CMSTriggerRatio=80 -> CMSInitiatingOccupancyFraction=92

NewRatio=7 (New:Old = 1:7)
InitialSurvivorRatio=8     MinSurvivorRatio=3     SurvivorRatio=8 (Eden:Survivor0:survivor1 = 8:1:1)

MaxTenuringThreshold=4
TargetSurvivorRatio=50
 (InitialTenuringThreshold=7 is for Parallel GC/UseAdaptiveSizePolicy)

SoftRefLRUPolicyMSPerMB=1000
 ( gc_interval > free_heap * ms_per_mb : clear softref )

[
  '-XX:-UseGCOverheadLimit',
  '-XX:+UseConcMarkSweepGC', '-XX:+UseCompressedOops',
  '-XX:CMSInitiatingOccupancyFraction=70', '-XX:+UseCMSInitiatingOccupancyOnly',
  '-XX:NewRatio=1',
  '-XX:SurvivorRatio=2', '-XX:MaxTenuringThreshold=15', '-XX:TargetSurvivorRatio=80',
  '-XX:SoftRefLRUPolicyMSPerMB=200',
]
JVM_GC_OPTIONS = 
[
  '-verbose:gc', '-XX:+PrintGCDetails', '-XX:+PrintGCDateStamps',
  '-XX:+HeapDumpOnOutOfMemoryError',
]

Instance Method Summary collapse

Instance Method Details

#serverproc ⇒ Object 



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# File 'lib/norikra/cli.rb', line 193

def serverproc
  conf = {}

  if options[:daemonize]
    conf[:daemonize] = {outfile: options[:outfile]}
  end

  ### stat file
  conf[:stats] = {
    path: options[:stats], secondary_path: options[:'stats-secondary'],
    suppress: options[:'suppress-dump-stat'], interval: options[:'dump-stat-interval'],
  }

  ### shut off mode
  conf[:shutoff] = {
    enabled: options[:shutoff],
    threshold: options[:'shutoff-threshold'],
    interval: options[:'shutoff-check-interval'],
  }

  ### threads
  predefined_selecteds = [:micro, :small, :middle, :large].select{|sym| options[sym]}
  if predefined_selecteds.size > 1
    raise Norikra::ConfigurationError, "one of micro/small/middle/large should be specified"
  end
  conf[:thread] = {
    predefined: predefined_selecteds.first,
    micro: options[:micro], small: options[:small], middle: options[:middle], large: options[:large],
    engine: {inbound:{}, outbound:{}, route_exec:{}, timer_exec:{}},
    rpc: {},
    web: {},
  }
  [:inbound, :outbound, :route_exec, :timer_exec].each do |sym|
    opt_sym = case sym
              when :route_exec then :route
              when :timer_exec then :timer
              else sym
              end
    conf[:thread][:engine][sym][:threads] = options[:"#{opt_sym}-threads"] if options[:"#{opt_sym}-threads"]
    conf[:thread][:engine][sym][:capacity] = options[:"#{opt_sym}-thread-capacity"] if options[:"#{opt_sym}-thread-capacity"]
  end
  conf[:thread][:rpc][:threads] = options[:'rpc-threads'] if options[:'rpc-threads']
  conf[:thread][:web][:threads] = options[:'web-threads'] if options[:'web-threads']

  ### logs
  loglevel = case
             when options[:'more-verbose'] then 'TRACE'
             when options[:verbose]        then 'DEBUG'
             when options[:quiet]          then 'WARN'
             when options[:'more-quiet']   then 'ERROR'
             else nil # for default (assumed as 'INFO')
             end
  conf[:log] = {
    level: loglevel, dir: options[:logdir],
    filesize: options[:'log-filesize'], backups: options[:'log-backups'],
    bufferlines: options[:'log-buffer-lines'],
  }
  conf[:log4j_properties_path] = options[:'log4j-properties-path']

  server_options = {
    host: options[:host],
    port: options[:port],
    ui_port: options[:'ui-port'],
    ui_context_path: options[:'ui-context-path'],
  }

  server = Norikra::Server.new( server_options, conf )
  server.run
  server.shutdown
end

#start(*optargs) ⇒ Object 



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# File 'lib/norikra/cli.rb', line 128

def start(*optargs)
  if options[:help]
    invoke :help, ["start"]
    return
  end

  ARGV.shift # shift head "start"

  argv = ["serverproc"]
  jruby_options = ['-J-server']

  unless options[:'bare-jvm']
    jruby_options += JVM_OPTIONS.map{|opt| '-J' + opt }
  end

  if options[:'gc-log']
    jruby_options += JVM_GC_OPTIONS.map{|opt| '-J' + opt }
    jruby_options.push "-J-Xloggc:#{options[:'gc-log']}"
  end

  ARGV.each do |arg|
    if arg =~ /^-X(.+)$/
      jruby_options.push('-J-X' + $1)
    elsif arg =~ /^-verbose:gc$/
      jruby_options.push('-J-verbose:gc')
    elsif arg =~ /^-javaagent:(.+)$/
      jruby_options.push('-J-javaagent:' + $1)
    else
      argv.push(arg)
    end
  end

  # norikra/lib/norikra
  binpath = File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'bin', 'norikra'))

  jruby_path = RbConfig.ruby
  args = jruby_options + [binpath] + argv

  if options[:daemonize]
    unless options[:logdir]
      puts "'logdir' must be specified for '--daemonize'."
      exit(1)
    end

    ## need to close/reopen STDIN/STDOUT/STDERR in child process
    outfile = options[:outfile] || File.join(options[:logdir], '/norikra.out')
    File.open(outfile, 'w'){|file| file.write 'write test on parent process'}

    pidfile = File.open(options[:pidfile], 'w')
    pid = spawn(jruby_path, *args, pgroup: 0)
    pidfile.write(pid.to_s)
    pidfile.close
    waiting_child = true
    while waiting_child && sleep(1)
      out = File.open(outfile){|f| f.read}
      waiting_child = false if out =~ /working on #{pid}/
    end
    Process.detach(pid)
  else
    exec(jruby_path, *args)
  end
end

#stop ⇒ Object 



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# File 'lib/norikra/cli.rb', line 268

def stop
  unless test(?r,options[:pidfile])
    puts "Cannot find pidfile at #{options[:pidfile]}"
    exit(1)
  end
  pid = File.open(options[:pidfile]){|f| f.read}.to_i
  timeout = Time.now + options[:timeout]
  waiting = true
  Process.kill(:TERM, pid)
  begin
    while waiting && Time.now < timeout
      sleep(0.5)
      status = Process.waitpid(pid, Process::WNOHANG)
      if status
        waiting = false
      end
    end
  rescue Errno::ECHILD
    waiting = false
  end
  if waiting
    puts "Faild to stop Norikra server #{pid}"
    exit(1)
  else
    File.unlink(options[:pidfile])
  end
end