server.properties 5.4 KB

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  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. ############################# Server Basics #############################
  17. # The id of the broker. This must be set to a unique integer for each broker.
  18. broker.id=KAFKAID
  19. reserved.broker.max.id=10000
  20. ############################# Socket Server Settings #############################
  21. # The port the socket server listens on
  22. port=KAFKAPORT
  23. # Hostname the broker will bind to. If not set, the server will bind to all interfaces
  24. host.name=localhost
  25. # Hostname the broker will advertise to producers and consumers. If not set, it uses the
  26. # value for "host.name" if configured. Otherwise, it will use the value returned from
  27. # java.net.InetAddress.getCanonicalHostName().
  28. advertised.host.name=KAFKA_HOSTNAME
  29. advertised.port=KAFKAID
  30. # The port to publish to ZooKeeper for clients to use. If this is not set,
  31. # it will publish the same port that the broker binds to.
  32. # advertised.port=<port accessible by clients>
  33. # The number of threads handling network requests
  34. num.network.threads=2
  35. # The number of threads doing disk I/O
  36. num.io.threads=8
  37. # The send buffer (SO_SNDBUF) used by the socket server
  38. socket.send.buffer.bytes=1048576
  39. # The receive buffer (SO_RCVBUF) used by the socket server
  40. socket.receive.buffer.bytes=1048576
  41. # The maximum size of a request that the socket server will accept (protection against OOM)
  42. socket.request.max.bytes=104857600
  43. ############################# Log Basics #############################
  44. # A comma seperated list of directories under which to store log files
  45. log.dirs=KAFKA_DATADIR
  46. # The default number of log partitions per topic. More partitions allow greater
  47. # parallelism for consumption, but this will also result in more files across
  48. # the brokers.
  49. num.partitions=2
  50. # Create new topics with a replication factor of 2 so failover can be tested
  51. # more easily.
  52. default.replication.factor=2
  53. auto.create.topics.enable=false
  54. delete.topic.enable=true
  55. ############################# Log Flush Policy #############################
  56. # Messages are immediately written to the filesystem but by default we only fsync() to sync
  57. # the OS cache lazily. The following configurations control the flush of data to disk.
  58. # There are a few important trade-offs here:
  59. # 1. Durability: Unflushed data may be lost if you are not using replication.
  60. # 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.
  61. # 3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive seeks.
  62. # The settings below allow one to configure the flush policy to flush data after a period of time or
  63. # every N messages (or both). This can be done globally and overridden on a per-topic basis.
  64. # The number of messages to accept before forcing a flush of data to disk
  65. #log.flush.interval.messages=10000
  66. # The maximum amount of time a message can sit in a log before we force a flush
  67. #log.flush.interval.ms=1000
  68. ############################# Log Retention Policy #############################
  69. # The following configurations control the disposal of log segments. The policy can
  70. # be set to delete segments after a period of time, or after a given size has accumulated.
  71. # A segment will be deleted whenever *either* of these criteria are met. Deletion always happens
  72. # from the end of the log.
  73. # The minimum age of a log file to be eligible for deletion
  74. log.retention.hours=168
  75. # A size-based retention policy for logs. Segments are pruned from the log as long as the remaining
  76. # segments don't drop below log.retention.bytes.
  77. log.retention.bytes=268435456
  78. # The maximum size of a log segment file. When this size is reached a new log segment will be created.
  79. log.segment.bytes=268435456
  80. # The interval at which log segments are checked to see if they can be deleted according
  81. # to the retention policies
  82. log.retention.check.interval.ms=60000
  83. # By default the log cleaner is disabled and the log retention policy will default to just delete segments after their retention expires.
  84. # If log.cleaner.enable=true is set the cleaner will be enabled and individual logs can then be marked for log compaction.
  85. log.cleaner.enable=false
  86. ############################# Zookeeper #############################
  87. # Zookeeper connection string (see zookeeper docs for details).
  88. # This is a comma separated host:port pairs, each corresponding to a zk
  89. # server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".
  90. # You can also append an optional chroot string to the urls to specify the
  91. # root directory for all kafka znodes.
  92. zookeeper.connect=localhost:ZK_PORT
  93. # Timeout in ms for connecting to zookeeper
  94. zookeeper.session.timeout.ms=3000
  95. zookeeper.connection.timeout.ms=3000