node.js – kafka-node ready事件未被触发

我使用的是kafka-node npm模块,0.2.27版本.我发现producer.on(‘ready’,fn(){})永远不会被调用.
当我检查生产者对象时,观察它如下

{ ready: true,client: 
   { connectionString: '10.196.160.100.:2181,10.196.160.150:2181,10.196.160.151:2181',clientId: 'dev',zkOptions: { sessionTimeOut: 10000,spinDelay: 1000,retries: 10 },brokers: 
      { 'custom-kafka.mine.com:9092': [Object],'custom-storm.mine.com:9092': [Object] },longpollingbrokers: {},topicMetadata: {},topicPartitions: {},correlationId: 0,cbqueue: {},brokerMetadata: { '0': [Object],'1': [Object] },ready: true,zk: { client: [Object],_events: [Object],inited: true },_events: { ready: [Object],error: [Object],close: [Object] } },requireAcks: 1,ackTimeoutMs: 100,_events: {} }

我没有等待(‘ready’)事件,而是检查了(producer.ready)是否能够稍微超时发布到kafka.理想情况下,应触发事件.我不确定我是否采取了正确的方法.非常感谢在这个方向的任何指针.提前致谢

解决方法

请尝试以下代码：

var kafka = require('kafka-node'),Producer = kafka.Producer,client = new kafka.Client('192.168.50.252:2181'),producer = new Producer(client),payloads = [
        { 
            topic: 'test topic',messages: ['test message'] 
        }
    ];

    client.on('ready',function (){
        console.log('client ready');
    })  

    client.on('error',function (err){
        console.log('client error: ' + err);
    })  

    producer.on('ready',function () {
        producer.send(payloads,function (err,data) {
            console.log('send: ' + data);        
            process.exit();
        });
    });

    producer.on('error',function (err) {
        console.log('error: ' + err);
        process.exit();
    });