############################# Server Basics #############################

# The id of the broker. This must be set to a unique integer for each broker.

broker.id=0

############################# Socket Server Settings #############################

# The address the socket server listens on. It will get the value returned from

# java.net.InetAddress.getCanonicalHostName() if not configured.

#   FORMAT:

#     listeners = listener_name://host_name:port

#   EXAMPLE:

#     listeners = PLAINTEXT://your.host.name:9092

listeners=PLAINTEXT://k8s-n1:9092

# Hostname and port the broker will advertise to producers and consumers. If not set,

# it uses the value for "listeners" if configured.  Otherwise, it will use the value

# returned from java.net.InetAddress.getCanonicalHostName().

advertised.listeners=PLAINTEXT://k8s-n1:9092

# Maps listener names to security protocols, the default is for them to be the same. See the config documentation for more details

#listener.security.protocol.map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL

# The number of threads that the server uses for receiving requests from the network and sending responses to the network

num.network.threads=

# The number of threads that the server uses for processing requests, which may include disk I/O

num.io.threads=

# The send buffer (SO_SNDBUF) used by the socket server

socket.send.buffer.bytes=

# The receive buffer (SO_RCVBUF) used by the socket server

socket.receive.buffer.bytes=

# The maximum size of a request that the socket server will accept (protection against OOM)

socket.request.max.bytes=

############################# Log Basics #############################

# A comma separated list of directories under which to store log files

log.dirs=/var/applog/kafka/

# The default number of log partitions per topic. More partitions allow greater

# parallelism for consumption, but this will also result in more files across

# the brokers.

num.partitions=

# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.

# This value is recommended to be increased for installations with data dirs located in RAID array.

num.recovery.threads.per.data.dir=

############################# Internal Topic Settings  #############################

# The replication factor for the group metadata internal topics "__consumer_offsets" and "__transaction_state"

# For anything other than development testing, a value greater than  is recommended for to ensure availability such as .

offsets.topic.replication.factor=

transaction.state.log.replication.factor=

transaction.state.log.min.isr=

############################# Log Flush Policy #############################

# Messages are immediately written to the filesystem but by default we only fsync() to sync

# the OS cache lazily. The following configurations control the flush of data to disk.

# There are a few important trade-offs here:

#    . Durability: Unflushed data may be lost if you are not using replication.

#    . Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.

#    . Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to excessive seeks.

# The settings below allow one to configure the flush policy to flush data after a period of time or

# every N messages (or both). This can be done globally and overridden on a per-topic basis.

# The number of messages to accept before forcing a flush of data to disk

log.flush.interval.messages=

# The maximum amount of time a message can sit in a log before we force a flush

log.flush.interval.ms=

############################# Log Retention Policy #############################

# The following configurations control the disposal of log segments. The policy can

# be set to delete segments after a period of time, or after a given size has accumulated.

# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens

# from the end of the log.

# The minimum age of a log file to be eligible for deletion due to age

log.retention.hours=

# A size-based retention policy for logs. Segments are pruned from the log unless the remaining

# segments drop below log.retention.bytes. Functions independently of log.retention.hours.

#log.retention.bytes=

# The maximum size of a log segment file. When this size is reached a new log segment will be created.

log.segment.bytes=

# The interval at which log segments are checked to see if they can be deleted according

# to the retention policies

log.retention.check.interval.ms=

############################# Zookeeper #############################

# Zookeeper connection string (see zookeeper docs for details).

# This is a comma separated host:port pairs, each corresponding to a zk

# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".

# You can also append an optional chroot string to the urls to specify the

# root directory for all kafka znodes.

zookeeper.connect=k8s-n1:2181,k8s-n2:2181,k8s-n3:2181

# Timeout in ms for connecting to zookeeper

zookeeper.connection.timeout.ms=

############################# Group Coordinator Settings #############################

# The following configuration specifies the time, in milliseconds, that the GroupCoordinator will delay the initial consumer rebalance.

# The rebalance will be further delayed by the value of group.initial.rebalance.delay.ms as new members join the group, up to a maximum of max.poll.interval.ms.

# The default value for this is  seconds.

# We override this to  here as it makes for a better out-of-the-box experience for development and testing.

# However, in production environments the default value of  seconds is more suitable as this will help to avoid unnecessary, and potentially expensive, rebalances during application startup.

group.initial.rebalance.delay.ms=

delete.topic.enable=true