我想在docker容器中实现kafka。我也使用kafka的官方zookeper实例作为docker容器。
当我想在我的 Linux Mint 18.1 操作系统上写一条有关终端的消息时，我收到以下错误消息。
foo@bar ~ $ /opt/kafka/bin/kafka-console-producer.sh --broker-list localhost:32786 --topic topic
Hello
[2017-05-16 11:01:08,245] ERROR Error when sending message to topic topic with key: null, value: 5 bytes with error: (org.apache.kafka.clients.producer.internals.ErrorLoggingCallback)
org.apache.kafka.common.errors.TimeoutException: Expiring 1 record(s) for topic-0: 1532 ms has passed since batch creation plus linger time
我不知道为什么。这是我的docker文件。
kafka 配置
# 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=${BROKER_ID}
# Switch to enable topic deletion or not, default value is false
#delete.topic.enable=true
############################# Socket Server Settings #############################
# The address the socket server listens on. It will get the value returned from
# java.net.InetAddress.getCanonicalHostName() if not configured.
# FORMAT:
# listeners = listener_name://host_name:port
# EXAMPLE:
# listeners = PLAINTEXT://your.host.name:9092
listeners=PLAINTEXT://0.0.0.0:9092
# Hostname and port the broker will advertise to producers and consumers. If not set,
# it uses the value for "listeners" if configured. Otherwise, it will use the value
# returned from java.net.InetAddress.getCanonicalHostName().
advertised.listeners=PLAINTEXT://0.0.0.0:9092
# Maps listener names to security protocols, the default is for them to be the same. See the config documentation for more details
#listener.security.protocol.map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL
# 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=/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=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 due to age
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. Functions independently of log.retention.hours.
#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
############################# 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=${ZOOKEEPER_HOST}:2181
# Timeout in ms for connecting to zookeeper
zookeeper.connection.timeout.ms=6000
我的 docker-compose.yml
version: '2'
services:
kafka:
image: kafka
restart: always
ports:
- 9092
environment:
ZOOKEEPER_HOST: zookeeper
KAFKA_HOST: kafka
networks:
u:
aliases:
- kafka
zoo1:
image: zookeeper
restart: always
ports:
- 2181:2181
environment:
ZOO_MY_ID: 1
ZOO_TICK_TIME: 2000
ZOO_INIT_LIMIT: 5
ZOO_SYNC_LIMIT: 2
ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
networks:
u:
aliases:
- zookeeper
- zoo1
zoo2:
image: zookeeper
restart: always
ports:
- 2182:2181
environment:
ZOO_MY_ID: 2
ZOO_TICK_TIME: 2000
ZOO_INIT_LIMIT: 5
ZOO_SYNC_LIMIT: 2
ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
networks:
u:
aliases:
- zookeeper
- zoo2
zoo3:
image: zookeeper
restart: always
ports:
- 2183:2181
environment:
ZOO_MY_ID: 3
ZOO_TICK_TIME: 2000
ZOO_INIT_LIMIT: 5
ZOO_SYNC_LIMIT: 2
ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
networks:
u:
aliases:
- zookeeper
- zoo3
networks:
u:
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
00e64ae8119a zookeeper "/docker-entrypoin..." 20 hours ago Up 15 minutes 2888/tcp, 3888/tcp, 0.0.0.0:2183->2181/tcp kafka_zoo3_1
1bebeb6bf4b4 zookeeper "/docker-entrypoin..." 20 hours ago Up 15 minutes 2888/tcp, 0.0.0.0:2181->2181/tcp, 3888/tcp kafka_zoo1_1
4385a814db83 zookeeper "/docker-entrypoin..." 20 hours ago Up 15 minutes 2888/tcp, 3888/tcp, 0.0.0.0:2182->2181/tcp kafka_zoo2_1
a0650d5a9c95 kafka "/bin/sh -c /usr/l..." 20 hours ago Up 15 minutes 0.0.0.0:32786->9092/tcp kafka_kafka_1
kafka 主题
foo@bar ~ $ /opt/kafka/bin/kafka-topics.sh --list --zookeeper localhost:2181
test
topic