在 Storm 集群上部署拓扑时出错

Question

我正在尝试在 storm 上部署一个简单的字数统计拓扑 clustre.I 我正在使用 kafka 作为输入 (kafka Spout)。这是我遇到的错误

java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.Log4jLoggerFactory at org.apache.log4j.Logger.getLogger(Logger.java:39) at kafka.utils.Logging$class.logger(Logging.scala:24) at kafka.consumer.SimpleConsumer.logger$lzycompute(SimpleConsumer.scala:30) at kafka.consumer.SimpleConsumer.logger(SimpleConsumer.scala:30) at kafka.utils.Logging$class.info(Logging.scala:67) at kafka.consumer.SimpleConsumer.info(SimpleConsumer.scala:30) at kafka.consumer.SimpleConsumer.liftedTree1(SimpleConsumer.scala:74) at kafka.consumer.SimpleConsumer.kafka$consumer$SimpleConsumer$$sendRequest(SimpleConsumer.scala:68) at kafka.consumer.SimpleConsumer.getOffsetsBefore(SimpleConsumer.scala:127) at kafka.javaapi.consumer.SimpleConsumer.getOffsetsBefore(SimpleConsumer.scala:79) at storm.kafka.KafkaUtils.getOffset(KafkaUtils.java:77) at storm.kafka.KafkaUtils.getOffset(KafkaUtils.java:67) at storm.kafka.PartitionManager.(PartitionManager.java:83) at storm.kafka.ZkCoordinator.refresh(ZkCoordinator.java:98) at storm.kafka.ZkCoordinator.getMyManagedPartitions(ZkCoordinator.java:69) at storm.kafka.KafkaSpout.nextTuple(KafkaSpout.java:135) at backtype.storm.daemon.executor$fn__4654$fn__4669$fn__4698.invoke(executor.clj:565) at backtype.storm.util$async_loop$fn__458.invoke(util.clj:463) at clojure.lang.AFn.run(AFn.java:24) at java.lang.Thread.run(Thread.java:745)

Answer 1

通过在我的风暴库中添加 log4j-over-slf4j-1.6.6.jar 解决了这个问题。

Answer 2

我正在使用

风暴 0.9.6
卡夫卡 0.9.0

对于storm 0.9.6，它使用slf4j。所以你需要从你的 kafka 参考中排除它并包括 log4j。以下是我的pom.xml

<dependency>
    <groupId>org.apache.kafka</groupId>
    <artifactId>kafka_2.10</artifactId>
    <version>0.9.0.0</version>
    <exclusions>
        <exclusion>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </exclusion>
        <!--<exclusion>-->
            <!--<groupId>log4j</groupId>-->
            <!--<artifactId>log4j</artifactId>-->
        <!--</exclusion>-->
    </exclusions>
</dependency>

在 Storm 集群上部署拓扑时出错

Error while deploying topology on storm cluster

java

logging

apache-kafka

apache-storm