| # |
| # (C) Copyright 2015 Hewlett Packard Enterprise Development Company LP |
| # |
| # Licensed 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. |
| # |
| |
| ############################# 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 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=127.0.0.1 |
| |
| # 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=<hostname routable by clients> |
| |
| # 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=2 |
| |
| # The number of threads doing disk I/O |
| num.io.threads=2 |
| |
| # The send buffer (SO_SNDBUF) used by the socket server |
| socket.send.buffer.bytes=1048576 |
| |
| # The receive buffer (SO_RCVBUF) used by the socket server |
| socket.receive.buffer.bytes=1048576 |
| |
| # The maximum size of a request that the socket server will accept (protection against OOM) |
| socket.request.max.bytes=104857600 |
| |
| |
| ############################# Log Basics ############################# |
| |
| # A comma separated list of directories under which to store log files |
| log.dirs=/var/kafka |
| |
| auto.create.topics.enable=false |
| # The number of logical partitions per topic per server. More partitions allow greater parallelism |
| # for consumption, but also mean more files. |
| num.partitions=2 |
| |
| ############################# 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=10000 |
| |
| # The maximum amount of time a message can sit in a log before we force a flush |
| log.flush.interval.ms=1000 |
| |
| ############################# 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=24 |
| |
| # 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=104857600 |
| |
| # The maximum size of a log segment file. When this size is reached a new log segment will be created. |
| log.segment.bytes=104857600 |
| |
| # 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=60000 |
| |
| # 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 |
| |
| ############################# 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=127.0.0.1:2181 |
| |
| # Timeout in ms for connecting to zookeeper |
| zookeeper.connection.timeout.ms=1000000 |
| |