defaults.pp
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	# == Class kafka::defaults
	# Default Kafka Configs.
	#
	class kafka::defaults {
	# default Kafka Broker Server Port.
	# This is used by server.pp as the default
	# $broker_port in server.properties.erb
	# if a host in the $kafka::hosts array
	# does not have a 'port' key set.
	$default_broker_port = 9092
	$brokers = {
	"${::fqdn}" => {
	'port' => $default_broker_port,
	'id' => 1,
	},
	}

	$zookeeper_hosts = ['localhost:2181']
	$zookeeper_connection_timeout_ms = 6000
	$zookeeper_session_timeout_ms = 6000

	$zookeeper_chroot = undef

	$kafka_log_file = '/var/log/kafka/kafka.log'
	$producer_type = 'async'
	$producer_batch_num_messages = 200
	$consumer_group_id = 'test-consumer-group'

	# Broker Server settings
	$java_home = undef
	$java_opts = undef
	$classpath = undef
	$jmx_port = 9999
	$log_dirs = ['/var/spool/kafka']
	$heap_opts = undef
	$nofiles_ulimit = 8192

	$auto_create_topics_enable = false
	$auto_leader_rebalance_enable = true

	$replica_lag_time_max_ms = undef
	$replica_lag_max_messages = undef
	$replica_socket_timeout_ms = undef
	$replica_socket_receive_buffer_bytes = undef
	$num_replica_fetchers = 1
	$replica_fetch_max_bytes = 1048576

	$num_network_threads = 3
	# $num_io_threads = size($log_dirs) # this default is directly in server.pp
	$socket_send_buffer_bytes = 1048576
	$socket_receive_buffer_bytes = 1048576
	$socket_request_max_bytes = 104857600

	$log_flush_interval_messages = 10000
	$log_flush_interval_ms = 3000

	$log_retention_hours = 168 # 1 week
	$log_retention_bytes = undef
	$log_segment_bytes = 536870912

	$log_cleanup_policy = 'delete'
	$log_cleanup_interval_mins = 1

	$metrics_properties = undef

	$jvm_performance_opts = undef

	# Kafka package version.
	$version = 'installed'

	# MirrorMaker settings
	$topic_whitelist = '.*'
	$topic_blacklist = undef
	$num_streams = 1
	$num_producers = 1
	$queue_size = 10000

	# Default puppet paths to template config files.
	# This allows us to use custom template config files
	# if we want to override more settings than this
	# module yet supports.
	$producer_properties_template = 'kafka/producer.properties.erb'
	$consumer_properties_template = 'kafka/consumer.properties.erb'
	$log4j_properties_template = 'kafka/log4j.properties.erb'
	$server_properties_template = 'kafka/server.properties.erb'
	$server_systemd_override_template = 'kafka/kafka.systemd.override.conf.erb'
	$server_default_template = 'kafka/kafka.default.erb'
	$mirror_default_template = 'kafka/kafka-mirror.default.erb'


	}

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