我的应用程序尝试连接到Zookeeper @ localhost:2181。 Zookeeper正在运行,并在命令提示符下进行了检查。但是,当应用程序运行时,我反复看到以下异常:
2018-08-06 22:25:09 DEBUG ZkClient:919 - Closing ZkClient...
2018-08-06 22:25:09 INFO ZkEventThread:82 - Terminate ZkClient event thread.
2018-08-06 22:25:09 DEBUG ZkConnection:77 - Closing ZooKeeper connected to localhost:2181
2018-08-06 22:25:09 DEBUG ZooKeeper:673 - Closing session: 0x0
2018-08-06 22:25:09 DEBUG ClientCnxn:1306 - Closing client for session: 0x0
2018-08-06 22:25:10 INFO ClientCnxn:975 - Opening socket connection to server localhost.localdomain/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
2018-08-06 22:25:10 DEBUG ClientCnxn:1086 - An exception was thrown while closing send thread for session 0x0 : Connection refused
2018-08-06 22:25:10 DEBUG ClientCnxnSocketNIO:203 - Ignoring exception during shutdown input
java.nio.channels.ClosedChannelException
at sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:780)
at sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:399)
at org.apache.zookeeper.ClientCnxnSocketNIO.cleanup(ClientCnxnSocketNIO.java:200)
at org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:1185)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1122)
2018-08-06 22:25:10 DEBUG ClientCnxnSocketNIO:210 - Ignoring exception during shutdown output
java.nio.channels.ClosedChannelException
at sun.nio.ch.SocketChannelImpl.shutdownOutput(SocketChannelImpl.java:797)
at sun.nio.ch.SocketAdaptor.shutdownOutput(SocketAdaptor.java:407)
at org.apache.zookeeper.ClientCnxnSocketNIO.cleanup(ClientCnxnSocketNIO.java:207)
at org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:1185)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1122)
2018-08-06 22:25:10 DEBUG ClientCnxn:1290 - Disconnecting client for session: 0x0
2018-08-06 22:25:10 INFO ZooKeeper:684 - Session: 0x0 closed
2018-08-06 22:25:10 DEBUG ZkClient:932 - Closing ZkClient...done
2018-08-06 22:25:10 INFO ClientCnxn:512 - EventThread shut down
而且,在日志中,它是说
ClientCnxn:975 - Opening socket connection to server localhost.localdomain/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
这意味着它正在尝试连接localhost.localdomain吗?
请帮助我解决。
答案 0 :(得分:0)
我也有类似的问题。我在zoo.cfg(C:\ kafka_folder \ zookeeper-3.5.4 \ conf)中配置了以下参数,错误消失了。
admin.enableServer=true
admin.serverPort=9990
或
试试这个ZkClient zkClient = new ZkClient("localhost:9091", 5000, 5000, ZKStringSerializer$.MODULE$);
人们也在 kafka-unit或kafka-junit (集成测试)中遇到此错误。在这种情况下,您必须使用kafka-client依赖版本1.0。 2(其他版本不支持 kafka-unit或kafka-junit )。
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>1.0.2</version>
<scope>provided</scope>
</dependency>