我在新的linux centos 7上安装了kafka confluent oss 4.0,但是kafka connect无法启动.
重现步骤 :
- Install Oracle JDK 8
- Copy confluent-4.0.0 folder on opt/confluent-4.0.0
- Run /opt/confluent-4.0.0/confluent start
结果:
Starting zookeeper
zookeeper is [UP]
Starting kafka
kafka is [UP]
Starting schema-registry
schema-registry is [UP]
Starting kafka-rest
kafka-rest is [UP]
Starting connect
\Kafka Connect failed to start
connect is [DOWN]
错误日志(connect.stderr):
Exception in thread "main" java.lang.NoClassDefFoundError: io/confluent/connect/storage/StorageSinkConnectorConfig
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method) …