1. # Licensed to the Apache Software Foundation (ASF) under one or more
  2. # contributor license agreements. See the NOTICE file distributed with
  3. # this work for additional information regarding copyright ownership.
  4. # The ASF licenses this file to You under the Apache License, Version 2.0
  5. # (the "License"); you may not use this file except in compliance with
  6. # the License. You may obtain a copy of the License at
  7. #
  8. # http://www.apache.org/licenses/LICENSE-2.0
  9. #
  10. # Unless required by applicable law or agreed to in writing, software
  11. # distributed under the License is distributed on an "AS IS" BASIS,
  12. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. # See the License for the specific language governing permissions and
  14. # limitations under the License.
  15. # see kafka.server.KafkaConfig for additional details and defaults
  16.  
  17. ############################# Server Basics #############################
  18.  
  19. # The id of the broker. This must be set to a unique integer for each broker.
  20. broker.id=1
  21.  
  22. ############################# Socket Server Settings #############################
  23.  
  24. listeners=PLAINTEXT://:9092
  25.  
  26. # The port the socket server listens on
  27. port=9092
  28.  
  29. # Hostname the broker will bind to. If not set, the server will bind to all interfaces
  30. host.name=192.168.14.105
  31.  
  32. # Hostname the broker will advertise to producers and consumers. If not set, it uses the
  33. # value for "host.name" if configured. Otherwise, it will use the value returned from
  34. # java.net.InetAddress.getCanonicalHostName().
  35. advertised.host.name=192.168.14.105
  36.  
  37. # The port to publish to ZooKeeper for clients to use. If this is not set,
  38. # it will publish the same port that the broker binds to.
  39. #advertised.port=<port accessible by clients>
  40.  
  41. # The number of threads handling network requests
  42. num.network.threads=4
  43.  
  44. # The number of threads doing disk I/O
  45. num.io.threads=8
  46.  
  47. # The send buffer (SO_SNDBUF) used by the socket server
  48. socket.send.buffer.bytes=102400
  49.  
  50. # The receive buffer (SO_RCVBUF) used by the socket server
  51. socket.receive.buffer.bytes=102400
  52.  
  53. # The maximum size of a request that the socket server will accept (protection against OOM)
  54. socket.request.max.bytes=104857600
  55.  
  56. ############################# Log Basics #############################
  57.  
  58. # A comma seperated list of directories under which to store log files
  59. log.dirs=/tmp/kafka-logs
  60.  
  61. # The default number of log partitions per topic. More partitions allow greater
  62. # parallelism for consumption, but this will also result in more files across
  63. # the brokers.
  64. num.partitions=8
  65.  
  66. # The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.
  67. # This value is recommended to be increased for installations with data dirs located in RAID array.
  68. num.recovery.threads.per.data.dir=1
  69. auto.create.topics.enable=true
  70. log.index.interval.bytes=4096
  71. log.index.size.max.bytes=10485760
  72. ############################# Log Flush Policy #############################
  73.  
  74. # Messages are immediately written to the filesystem but by default we only fsync() to sync
  75. # the OS cache lazily. The following configurations control the flush of data to disk.
  76. # There are a few important trade-offs here:
  77. # 1. Durability: Unflushed data may be lost if you are not using replication.
  78. # 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.
  79. # 3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive seeks.
  80. # The settings below allow one to configure the flush policy to flush data after a period of time or
  81. # every N messages (or both). This can be done globally and overridden on a per-topic basis.
  82.  
  83. # The number of messages to accept before forcing a flush of data to disk
  84. log.flush.interval.messages=20000
  85.  
  86. # The maximum amount of time a message can sit in a log before we force a flush
  87. log.flush.interval.ms=10000
  88.  
  89. log.flush.scheduler.interval.ms=2000
  90. log.retention.check.interval.ms=300000
  91. ############################# Log Retention Policy #############################
  92.  
  93. # The following configurations control the disposal of log segments. The policy can
  94. # be set to delete segments after a period of time, or after a given size has accumulated.
  95. # A segment will be deleted whenever *either* of these criteria are met. Deletion always happens
  96. # from the end of the log.
  97.  
  98. # The minimum age of a log file to be eligible for deletion
  99. log.retention.hours=168
  100.  
  101. # A size-based retention policy for logs. Segments are pruned from the log as long as the remaining
  102. # segments don't drop below log.retention.bytes.
  103. #log.retention.bytes=1073741824
  104.  
  105. # The maximum size of a log segment file. When this size is reached a new log segment will be created.
  106. log.segment.bytes=1073741824
  107.  
  108. # The interval at which log segments are checked to see if they can be deleted according
  109. # to the retention policies
  110. log.retention.check.interval.ms=300000
  111.  
  112. # By default the log cleaner is disabled and the log retention policy will default to just delete segments after their retention expires.
  113. # If log.cleaner.enable=true is set the cleaner will be enabled and individual logs can then be marked for log compaction.
  114. log.cleaner.enable=false
  115. ############################# partition replicas #############################
  116. num.replica.fetchers=4
  117. replica.fetch.max.bytes=1048576
  118. replica.fetch.wait.max.ms =500
  119. replica.high.watermark.checkpoint.interval.ms=5000
  120. controller.socket.timeout.ms =30000
  121. controller.message.queue.size=10
  122. replica.lag.time.max.ms =10000
  123. replica.lag.max.messages =4000
  124. replica.socket.timeout.ms=30000
  125. replica.socket.receive.buffer.bytes=65536
  126.  
  127. ############################# Zookeeper #############################
  128.  
  129. # Zookeeper connection string (see zookeeper docs for details).
  130. # This is a comma separated host:port pairs, each corresponding to a zk
  131. # server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".
  132. # You can also append an optional chroot string to the urls to specify the
  133. # root directory for all kafka znodes.
  134. zookeeper.connect=192.168.14.100:2181,192.168.14.105:2181,192.168.14.102:2181
  135.  
  136. # Timeout in ms for connecting to zookeeper
  137. zookeeper.connection.timeout.ms=6000
  138. zookeeper.sync.time.ms=2000
  139. 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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