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From John Prout <John.Pr...@acxiom.com>
Subject RE: How to bind all Kafka tcp port to private net address
Date Mon, 01 Feb 2016 15:27:26 GMT
I have set the host.name option in the server.properties file, but the Broker is still binding
to all interfaces, and logging that's what it is doing.

This is with kafka 0.9.0 running on a Solaris 10 server with 3 Virtual interfaces installed,
in addition to the Physical interface.

John

-----Original Message-----
From: Stephen Powis [mailto:spowis@salesforce.com] 
Sent: Friday, January 29, 2016 10:03 AM
To: users@kafka.apache.org
Subject: Re: How to bind all Kafka tcp port to private net address

Pretty sure you want to set this option in your server.properties file:

# Hostname the broker will bind to. If not set, the server will bind to all
> interfaces
> #host.name=localhost
>

On Thu, Jan 28, 2016 at 10:58 PM, costa xu <xxb.sklse@gmail.com> wrote:

> My version is kafka_2.11-0.9.0.0. I find that the kafka listen on 
> multi tcp port on a linux server.
>
> [gdata@gdataqosconnd2 kafka_2.11-0.9.0.0]$ netstat -plnt|grep java 
> (Not all processes could be identified, non-owned process info  will 
> not be shown, you would have to be root to see it all.)
> tcp        0      0 10.105.7.243:9092       0.0.0.0:*
> LISTEN      31011/java
> tcp        0      0 0.0.0.0:51367           0.0.0.0:*
> LISTEN      31011/java
> tcp        0      0 0.0.0.0:1105            0.0.0.0:*
> LISTEN      31011/java
> tcp        0      0 0.0.0.0:42592           0.0.0.0:*
> LISTEN      31011/java
>
> 10.105.7.243:9092 is the broker's port.0 0.0.0.0:1105 is the jmx port 
> that I set in the start script.
> But I dont know what is the 0 0.0.0.0:51367 and 0 0.0.0.0:42592. And 
> more tricky, the port will change after restarting of the kafka process.
>
> So  I want to know how to bind the kafka port to private interface 
> just like '10.105.7.243'.
> If I can not bind them, can I set the fixed listened port number?
>
> My kafka server.properties is:
> # 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://10.105.7.243:9092
>
> # 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=localhost
>
> # 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=3
>
> # 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=/data/gdata/var/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=1
>
> # 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
>
> ############################# 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=48
>
> # 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
>
> ############################# 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=10.131.208.195:1888,10.105.46.165:1888,
> 10.105.52.174:1888
>
> # Timeout in ms for connecting to zookeeper
> zookeeper.connection.timeout.ms=6000
>
>
>
> And the start script:
> [gdata@gdataqosconnd2 kafka_2.11-0.9.0.0]$ cat 
> bin/kafka-server-start.sh #!/bin/bash # 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.
>
> if [ $# -lt 1 ];
> then
>     echo "USAGE: $0 [-daemon] server.properties [--override 
> property=value]*"
>     exit 1
> fi
> base_dir=$(dirname $0)
>
> if [ "x$KAFKA_LOG4J_OPTS" = "x" ]; then
>     export
>
> KAFKA_LOG4J_OPTS="-Dlog4j.configuration=file:$base_dir/../config/log4j.properties"
> fi
>
> if [ "x$KAFKA_HEAP_OPTS" = "x" ]; then
>     export KAFKA_HEAP_OPTS="-Xmx1G -Xms1G"
> fi
>
> EXTRA_ARGS="-name kafkaServer -loggc
> -Dcom.sun.management.jmxremote.port=1105
> -Dcom.sun.management.jmxremote=true
> -Dcom.sun.management.jmxremote.authenticate=false
> -Dcom.sun.management.jmxremote.ssl=false"
>
> COMMAND=$1
> case $COMMAND in
>   -daemon)
>     EXTRA_ARGS="-daemon "$EXTRA_ARGS
>     shift
>     ;;
>   *)
>     ;;
> esac
>
> exec $base_dir/kafka-run-class.sh $EXTRA_ARGS kafka.Kafka $@
>
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