Question

我正在尝试对以下流使用直接绑定。

stream create --definition "time | log" --name ticktock
stream deploy ticktock --properties module.*.count=0

部署失败，在admin和容器节点上都有此异常：

java.lang.IllegalArgumentException: Module count cannot be zero
    at org.springframework.xd.dirt.integration.kafka.KafkaMessageBus$KafkaPropertiesAccessor.getNumberOfKafkaPartitionsForProducer(KafkaMessageBus.java:799)
    at org.springframework.xd.dirt.integration.kafka.KafkaMessageBus.bindProducer(KafkaMessageBus.java:500)
    at org.springframework.xd.dirt.plugins.AbstractMessageBusBinderPlugin.bindMessageProducer(AbstractMessageBusBinderPlugin.java:287)
    at org.springframework.xd.dirt.plugins.AbstractMessageBusBinderPlugin.bindConsumerAndProducers(AbstractMessageBusBinderPlugin.java:143)
    at org.springframework.xd.dirt.plugins.stream.StreamPlugin.postProcessModule(StreamPlugin.java:73)
    at org.springframework.xd.dirt.module.ModuleDeployer.postProcessModule(ModuleDeployer.java:238)
    at org.springframework.xd.dirt.module.ModuleDeployer.doDeploy(ModuleDeployer.java:218)
    at org.springframework.xd.dirt.module.ModuleDeployer.deploy(ModuleDeployer.java:200)
    at org.springframework.xd.dirt.server.container.DeploymentListener.deployModule(DeploymentListener.java:365)
    at org.springframework.xd.dirt.server.container.DeploymentListener.deployStreamModule(DeploymentListener.java:334)
    at org.springframework.xd.dirt.server.container.DeploymentListener.onChildAdded(DeploymentListener.java:181)
    at org.springframework.xd.dirt.server.container.DeploymentListener.childEvent(DeploymentListener.java:149)
    at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:509)
    at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:503)
    at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:92)
    at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297)
    at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:83)
    at org.apache.curator.framework.recipes.cache.PathChildrenCache.callListeners(PathChildrenCache.java:500)
    at org.apache.curator.framework.recipes.cache.EventOperation.invoke(EventOperation.java:35)
    at org.apache.curator.framework.recipes.cache.PathChildrenCache$10.run(PathChildrenCache.java:762)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

我有一个Spring-XD（1.2.0）集群，其中一个管理员和两个容器节点使用Kafka作为消息总线。

我做错了吗？或者直接绑定和Kafka消息总线有问题吗？

Answer 1

每the documentation，XD KafkaMessageBus目前不支持直接绑定......

注意：Kafka消息总线不支持count = 0用于模块部署，因此，它不支持模块的直接绑定。此功能将在以后的版本中提供。与此同时，如果Kafka部署需要模块之间的直接通信，则应使用复合模块。

使用Kafka作为消息总线进行直接绑定部署

1 个答案: