我的机器上安装了 Kafka 并且运行良好。
然后我安装了 NetBeans，我认为这把事情搞砸了。现在我的动物园管理员还没有启动。
安装 netBeans 后，我在运行时遇到错误
缺少 JDK，需要运行一些 netbeans 模块
我使用这篇文章
解决了这个问题现在当我开始使用 Zookeeper 时：
sudo bin/zookeeper-server-start.sh config/zookeeper.properties
我得到以下回溯：
[2018-01-31 17:30:09,953] INFO Reading configuration from: config/zookeeper.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2018-01-31 17:30:09,959] INFO autopurge.snapRetainCount set to 3 (org.apache.zookeeper.server.DatadirCleanupManager)
[2018-01-31 17:30:09,959] INFO autopurge.purgeInterval set to 0 (org.apache.zookeeper.server.DatadirCleanupManager)
[2018-01-31 17:30:09,959] INFO Purge task is not scheduled. (org.apache.zookeeper.server.DatadirCleanupManager)
[2018-01-31 17:30:09,959] WARN Either no config or no quorum defined in config, running in standalone mode (org.apache.zookeeper.server.quorum.QuorumPeerMain)
[2018-01-31 17:30:09,979] INFO Reading configuration from: config/zookeeper.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2018-01-31 17:30:09,980] INFO Starting server (org.apache.zookeeper.server.ZooKeeperServerMain)
[2018-01-31 17:30:09,991] INFO Server environment:zookeeper.version=3.4.10- 39d3a4f269333c922ed3db283be479f9deacaa0f, built on 03/23/2017 10:13 GMT (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,991] INFO Server environment:host.name=jojo (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,991] INFO Server environment:java.version=1.8.0_161 (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:java.vendor=Oracle Corporation (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:java.home=/usr/lib/jvm/java-8-oracle/jre (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:java.class.path=:/opt/Kafka/kafka_2.12- 0.11.0.0/bin/../libs/aopalliance-repackaged-2.5.0- b05.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/argparse4j- 0.7.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/commons-lang3- 3.5.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/connect-api-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/connect-file-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/connect-json-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/connect-runtime-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/connect- transforms-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/guava-20.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/hk2-api-2.5.0-b05.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/hk2-locator-2.5.0-b05.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/hk2-utils-2.5.0-b05.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jackson-annotations-2.8.5.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jackson-core-2.8.5.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jackson-databind-2.8.5.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jackson-jaxrs-base-2.8.5.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jackson-jaxrs-json-provider-2.8.5.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jackson- module-jaxb-annotations-2.8.5.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/javassist-3.21.0-GA.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/javax.annotation-api-1.2.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/javax.inject-1.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/javax.inject-2.5.0-b05.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/javax.servlet-api-3.1.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/javax.ws.rs-api-2.0.1.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jersey-client-2.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jersey-common-2.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jersey-container-servlet-2.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jersey-container-servlet-core-2.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jersey-guava-2.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jersey-media-jaxb-2.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jersey-server-2.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty-continuation-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty-http-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty-io-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty-security-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty-server-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty-servlet-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty- servlets-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jetty-util-9.2.15.v20160210.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/jopt-simple-5.0.3.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka_2.12-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka_2.12-0.11.0.0-sources.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka_2.12-0.11.0.0-test-sources.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka-clients- 0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka-log4j-appender-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka-streams-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka-streams-examples-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/kafka-tools-0.11.0.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/log4j-1.2.17.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/lz4-1.3.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/maven-artifact-3.5.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/metrics-core-2.2.0.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/osgi-resource-locator-1.0.1.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/plexus-utils-3.0.24.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/reflections-0.9.11.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/rocksdbjni-5.0.1.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/scala-library-2.12.2.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/scala-parser-combinators_2.12-1.0.4.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/slf4j-api-1.7.25.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/slf4j-log4j12-1.7.25.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/snappy-java-1.1.2.6.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/validation-api-1.1.0.Final.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/zkclient-0.10.jar:/opt/Kafka/kafka_2.12-0.11.0.0/bin/../libs/zookeeper-3.4.10.jar (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:java.io.tmpdir=/tmp (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:java.compiler=<NA> (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:os.name=Linux (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:os.arch=amd64 (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:os.version=4.4.0-112-generic (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:user.name=root (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,992] INFO Server environment:user.home=/root (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,993] INFO Server environment:user.dir=/opt/Kafka/kafka_2.12-0.11.0.0 (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,999] INFO tickTime set to 3000 (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,999] INFO minSessionTimeout set to -1 (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:09,999] INFO maxSessionTimeout set to -1 (org.apache.zookeeper.server.ZooKeeperServer)
[2018-01-31 17:30:10,007] INFO binding to port 0.0.0.0/0.0.0.0:2181 (org.apache.zookeeper.server.NIOServerCnxnFactory)
[2018-01-31 17:30:10,008] ERROR Unexpected exception, exiting abnormally (org.apache.zookeeper.server.ZooKeeperServerMain)
java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:67)
at org.apache.zookeeper.server.NIOServerCnxnFactory.configure(NIOServerCnxnFa ctory.java:90)
at org.apache.zookeeper.server.ZooKeeperServerMain.runFromConfig(ZooKeeperSer verMain.java:117)
at org.apache.zookeeper.server.ZooKeeperServerMain.initializeAndRun(ZooKeeper ServerMain.java:87)
at org.apache.zookeeper.server.ZooKeeperServerMain.main(ZooKeeperServerMain.j ava:53)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumP eerMain.java:116)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)
我试过这个：
netstat -ant | grep :2181
给我以下输出：
tcp6 0 0 :::2181 :::* LISTEN
tcp6 0 0 127.0.0.1:43566 127.0.0.1:2181 ESTABLISHED
tcp6 0 0 127.0.0.1:2181 127.0.0.1:43566 ESTABLISHED
在安装 NetBeans 之前，输出为：
tcp6 0 0 :::2181 :::* LISTEN
我认为这是问题所在，但我不知道如何解决。
我已经尝试过
sudo lsof -i :2181输出：
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 1005 zookeeper 33u IPv6 17209 0t0 TCP *:2181 (LISTEN)
java 1005 zookeeper 34u IPv6 327225 0t0 TCP localhost:2181->localhost:43566 (ESTABLISHED)
java 22585 root 88u IPv6 324552 0t0 TCP localhost:43566->localhost:2181 (ESTABLISHED)
转到安装的 Kafka 文件夹并输入以下命令：
sudo bin/zookeeper-server-stop.sh
然后尝试执行以下命令：
bin/zookeeper-server-start.sh config/zookeeper.properties
希望您能摆脱错误。
您应该转到配置文件夹。然后有一个文件zookeeper.properties，打开该文件并设置clientPort=5181（如果是未使用的端口）并设置maxClientCnxns=5（最初这里是0而不是5，您可以根据需要设置它）。
看来zookeeper已经在端口2181上运行了。尝试通过运行以下命令来获取pid
netstat -tupln | grep 2181
获取pid后，使用以下命令杀死它
kill -9 <pid>
然后尝试开始