在kafka群集上启用ssl时，kafka connect无法启动

我试图评估卡夫卡融合平台4.0版。但是，当我在kafka群集上启用ssl时，kafka连接无法启动

详细记录如下：

[2017-12-18 04:38:55,747] ERROR Uncaught exception in herder work thread, exiting:  (org.apache.kafka.connect.runtime.distributed.DistributedHerder:218)
org.apache.kafka.connect.errors.ConnectException: Timed out while checking for or creating topic(s) 'connect-offsets'. This could indicate a connectivity issue, unavailable topic partitions, or if this is your first use of the topic it may have taken too long to create.
        at org.apache.kafka.connect.util.TopicAdmin.createTopics(TopicAdmin.java:243)
        at org.apache.kafka.connect.storage.KafkaOffsetBackingStore$1.run(KafkaOffsetBackingStore.java:99)
        at org.apache.kafka.connect.util.KafkaBasedLog.start(KafkaBasedLog.java:126)
        at org.apache.kafka.connect.storage.KafkaOffsetBackingStore.start(KafkaOffsetBackingStore.java:109)
        at org.apache.kafka.connect.runtime.Worker.start(Worker.java:144)
        at org.apache.kafka.connect.runtime.AbstractHerder.startServices(AbstractHerder.java:100)
        at org.apache.kafka.connect.runtime.distributed.DistributedHerder.run(DistributedHerder.java:205)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.kafka.common.errors.TimeoutException: Timed out waiting for a node assignment.
[2017-12-18 04:38:55,752] INFO Kafka Connect stopping (org.apache.kafka.connect.runtime.Connect:65)
[2017-12-18 04:38:55,753] INFO Stopping REST server (org.apache.kafka.connect.runtime.rest.RestServer:154)
[2017-12-18 04:38:55,761] INFO Stopped ServerConnector@51012d9c{HTTP/1.1}{0.0.0.0:8083} (org.eclipse.jetty.server.ServerConnector:306)
[2017-12-18 04:38:55,783] INFO Stopped o.e.j.s.ServletContextHandler@77a001d8{/,null,UNAVAILABLE} (org.eclipse.jetty.server.handler.ContextHandler:865)
[2017-12-18 04:38:55,786] INFO REST server stopped (org.apache.kafka.connect.runtime.rest.RestServer:165)
[2017-12-18 04:38:55,787] INFO Herder stopping (org.apache.kafka.connect.runtime.distributed.DistributedHerder:389)
[2017-12-18 04:39:00,788] INFO Herder stopped (org.apache.kafka.connect.runtime.distributed.DistributedHerder:409)
[2017-12-18 04:39:00,789] INFO Kafka Connect stopped (org.apache.kafka.connect.runtime.Connect:70)

我已经检查过卡夫卡经纪人，他们仍在正常运行

bin/confluent status
connect is [DOWN]
kafka-rest is [UP]
schema-registry is [DOWN]
kafka is [UP]
zookeeper is [UP]

我错过了什么额外的配置

---

请告知？

在Kafka群集上启用安全选项后，您需要为Kafka Connect Worker启用等效选项

例如，对于基本SSL配置，您可能需要设置如下内容：

security.protocol=SSL
ssl.truststore.location=/var/private/ssl/kafka.client.truststore.jks
ssl.truststore.password=<your-pass>

security.protocol=SSL
ssl.truststore.location=/var/private/ssl/kafka.client.truststore.jks
ssl.truststore.password=

到您工作人员的配置。（如上图所示，要尝试使用Confluent CLI，此文件为

/etc/schema registry/connect avro distributed.properties

）

您可以在此处阅读有关如何设置Kafka Connect with security的更多信息：

并在此处查找有关Connect workers的所有可用安全相关属性：

---

当我将代理默认端口从

9092

更改为

9094

时，定制的kafka代理端口出现了问题。只有当我更改回默认端口时，卡夫卡连接才起作用。我的问题是，有没有办法启动kafka connect以连接到定制的kafka端口@KonstantineI已经更新了

/etc/schema registry/connect avro distributed.properties

文件中的boostrap.servers。卡夫卡连接现在正在工作。顺便说一句，关于在zookeeper上启用SSL，我有一个问题，到目前为止，我只看到了从客户端到kafka服务器的连接的SSL设置，并且只看到了inte代理。但对于连接到zookeeper，没有可用的SSL设置，因为这是我们组织中的安全问题。谢谢