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lib/Algorithm/Classifier/IsolationForest/App/Command/streamd.pm  view on Meta::CPAN

			'Seconds between periodic model saves (only when learning happened).',
			{ 'default' => 300 }
		],
		[ 'keep=i',       'Prune all but the newest N timestamped model files after each save.' ],
		[ 'f|foreground', 'Do not daemonize; log to stderr unless --log is given.' ],
		[
			'log=s',
			'Log file. Defaults to <model-dir>/streamd.log when daemonized; stderr in the foreground.',
			{ 'completion' => 'files' }
		],
		[ 'socket-mode=s', 'Octal permissions to chmod the socket file to (e.g. 0660).' ],
		[ 'threshold=f',   'Alternative decision threshold to use for the label field. 0 < $val < 1' ],

		# creation knobs, used only when <model-dir>/latest.json does not exist yet
		[ 'n=i',         'Number of isolation trees in the ensemble (new models only).' ],
		[ 'window=i',    'Sliding window size; 0 disables forgetting (new models only).' ],
		[ 'eta=i',       'max_leaf_samples: points a leaf accumulates before splitting (new models only).' ],
		[ 'growth=s',    "Leaf split-requirement growth, 'adaptive' or 'fixed' (new models only)." ],
		[ 'subsample=f', 'Per-tree stream subsampling probability, in (0, 1] (new models only).' ],
		[ 's=i',         'Seed int (new models only).' ],
		[

lib/Algorithm/Classifier/IsolationForest/App/Command/streamd.pm  view on Meta::CPAN

		);
	} ## end else [ if ( -e $latest ) ]

	# --- bind, then daemonize (the listening fd survives the forks) --------
	my $listener = IO::Socket::UNIX->new(
		Local  => $OPT{'socket'},
		Listen => 64,
	) or die( 'failed to listen on "' . $OPT{'socket'} . '": ' . $! . "\n" );
	$listener->blocking(0);
	if ( defined $OPT{'socket_mode'} ) {
		chmod( oct( $OPT{'socket_mode'} ), $OPT{'socket'} )
			or die( 'failed to chmod "' . $OPT{'socket'} . '" to ' . $OPT{'socket_mode'} . ': ' . $! . "\n" );
	}

	if ( !$OPT{'f'} ) {
		$OPT{'log'} = File::Spec->catfile( $OPT{'model_dir'}, 'streamd.log' )
			unless defined $OPT{'log'};
		_daemonize();
	}
	_open_log();

	write_file( $OPT{'pid'}, { 'atomic' => 1 }, $$ . "\n" );