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  • kafka学习之-配置详解

    # Licensed to the Apache Software Foundation (ASF) under one or more
    # contributor license agreements.  See the NOTICE file distributed with
    # this work for additional information regarding copyright ownership.
    # The ASF licenses this file to You under the Apache License, Version 2.0
    # (the "License"); you may not use this file except in compliance with
    # the License.  You may obtain a copy of the License at
    # 
    #    http://www.apache.org/licenses/LICENSE-2.0
    # 
    # Unless required by applicable law or agreed to in writing, software
    # distributed under the License is distributed on an "AS IS" BASIS,
    # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    # See the License for the specific language governing permissions and
    # limitations under the License.
    # see kafka.server.KafkaConfig for additional details and defaults
    
    ############################# Server Basics #############################
    
    # The id of the broker. This must be set to a unique integer for each broker.
    broker.id=1
    
    ############################# Socket Server Settings #############################
    
    listeners=PLAINTEXT://:9092
    
    # The port the socket server listens on
    port=9092
    
    # Hostname the broker will bind to. If not set, the server will bind to all interfaces
    host.name=192.168.14.105
    
    # Hostname the broker will advertise to producers and consumers. If not set, it uses the
    # value for "host.name" if configured.  Otherwise, it will use the value returned from
    # java.net.InetAddress.getCanonicalHostName().
    advertised.host.name=192.168.14.105
    
    # The port to publish to ZooKeeper for clients to use. If this is not set,
    # it will publish the same port that the broker binds to.
    #advertised.port=<port accessible by clients>
    
    # The number of threads handling network requests
    num.network.threads=4
     
    # The number of threads doing disk I/O
    num.io.threads=8
    
    # The send buffer (SO_SNDBUF) used by the socket server
    socket.send.buffer.bytes=102400
    
    # The receive buffer (SO_RCVBUF) used by the socket server
    socket.receive.buffer.bytes=102400
    
    # The maximum size of a request that the socket server will accept (protection against OOM)
    socket.request.max.bytes=104857600
    
    
    ############################# Log Basics #############################
    
    # A comma seperated list of directories under which to store log files
    log.dirs=/tmp/kafka-logs
    
    # 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=8
    
    # 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=1
    auto.create.topics.enable=true
    log.index.interval.bytes=4096
    log.index.size.max.bytes=10485760
    ############################# 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:
    #    1. Durability: Unflushed data may be lost if you are not using replication.
    #    2. 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.
    #    3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive 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=20000
    
    # The maximum amount of time a message can sit in a log before we force a flush
    log.flush.interval.ms=10000
    
    log.flush.scheduler.interval.ms=2000
    log.retention.check.interval.ms=300000
    ############################# 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
    log.retention.hours=168
    
    # A size-based retention policy for logs. Segments are pruned from the log as long as the remaining
    # segments don't drop below log.retention.bytes.
    #log.retention.bytes=1073741824
    
    # The maximum size of a log segment file. When this size is reached a new log segment will be created.
    log.segment.bytes=1073741824
    
    # 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=300000
    
    # By default the log cleaner is disabled and the log retention policy will default to just delete segments after their retention expires.
    # If log.cleaner.enable=true is set the cleaner will be enabled and individual logs can then be marked for log compaction.
    log.cleaner.enable=false
    ############################# partition replicas #############################
    num.replica.fetchers=4
    replica.fetch.max.bytes=1048576
    replica.fetch.wait.max.ms =500
    replica.high.watermark.checkpoint.interval.ms=5000
    controller.socket.timeout.ms =30000
    controller.message.queue.size=10
    replica.lag.time.max.ms =10000
    replica.lag.max.messages =4000
    replica.socket.timeout.ms=30000
    replica.socket.receive.buffer.bytes=65536
    
    ############################# 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=192.168.14.100:2181,192.168.14.105:2181,192.168.14.102:2181
    
    # Timeout in ms for connecting to zookeeper
    zookeeper.connection.timeout.ms=6000
    zookeeper.sync.time.ms=2000
    zookeeper.session.timeout.ms=6000

    http://www.cnblogs.com/fxjwind/p/3956353.html   

    apache kafka系列之server.properties配置文件参数说明 --参考

    http://kafka.apache.org/documentation.html --官方文档

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  • 原文地址:https://www.cnblogs.com/200911/p/5081069.html
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