在风暴中存储批处理的kafka消息需要一些例子

Question

我尝试使用普通的消费者示例来检索消息。但是现在我的消费者是Storm，所以我需要将成批的kafka消息存储在Storm中需要一些示例。

Answer 1

I am using the storm-kafka spout. You can find several examples on their page. I needed the KafkaSpout class in my application, but they seem to also support batches:

Fields fields = new Fields("key", "message");
FixedBatchSpout spout = new FixedBatchSpout(fields, 4,
            new Values("storm", "1"),
            new Values("trident", "1"),
            new Values("needs", "1"),
            new Values("javadoc", "1")
);
spout.setCycle(true);
builder.setSpout("spout", spout, 5);

Please narrow down the question if you need more specific examples.