将 Storm 1 Kafka 拓扑转换为 Heron，有几个问题

如何解决将 Storm 1 Kafka 拓扑转换为 Heron，有几个问题

一直在尝试将 Storm 1.0.6 拓扑切换到 heron。采取措施，移除除 Kafka 喷口以外的所有部件，看看情况如何。有一个main方法如下（从原来的Flux版本修改而来）：

import org.apache.heron.eco.Eco;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class KafkaTopology {

    public static void main(String[] args) throws Exception {

        List<String> argList = new ArrayList<String>(Arrays.asList(args));
        String file = KafkaTopology.class.getClassLoader().getResource("topology.yaml").getFile();
        argList.add("local");
        argList.add("--eco-config-file");
        argList.add(file);

        file = KafkaTopology.class.getClassLoader().getResource("dev.properties").getFile();
        argList.add("--props");
        argList.add(file);

        argList.add("--sleep");
        argList.add("36000000");

        String[] ecoArgs = argList.toArray(new String[argList.size()]);

        Eco.main(ecoArgs);

    }
}

YAML 是这样的：

name: "kafkaTopology-XXX_topologyVersion_XXX"
type: "storm"

config:
  topology.workers: ${workers.config}
  topology.max.spout.pending: ${max.spout.pending}
  topology.message.timeout.secs: 120
  topology.testing.always.try.serialize: true
  storm.zookeeper.session.timeout: 30000
  storm.zookeeper.connection.timeout: 30000
  storm.zookeeper.retry.times: 5
  storm.zookeeper.retry.interval: 2000
  properties:
    kafka.mapper.zkServers: ${kafka.mapper.zkServers}
    kafka.mapper.zkPort: ${kafka.mapper.zkPort}
    bootstrap.servers: ${bootstrap.servers}
    kafka.mapper.brokerZkStr: ${kafka.mapper.brokerZkStr}
    kafka.topic.name: ${kafka.topic.name}

components:

  - id: "zkHosts"
    className: "org.apache.storm.kafka.ZkHosts"
    constructorArgs:
      - ${kafka.mapper.brokerZkStr}

  - id: "rawMessageAndMetadataScheme"
    className: "org.acme.storm.spout.RawMessageAndMetadataScheme"

  - id: "messageMetadataSchemeAsMultiScheme"
    className: "org.apache.storm.kafka.MessageMetadataSchemeAsMultiScheme"
    constructorArgs:
      - ref: "rawMessageAndMetadataScheme"

  - id: "kafkaspoutConfig"
    className: "org.apache.storm.kafka.spoutConfig"
    constructorArgs:
      # brokerHosts
      - ref: "zkHosts"
      # topic
      - ${kafka.topic.name}
      # zkRoot
      - "/zkRootKafka.kafkaspout.builder"
      # id
      - ${kafka.topic.name}
    properties:
      - name: "scheme"
        ref: "messageMetadataSchemeAsMultiScheme"
      - name: zkServers
        value: ${kafka.mapper.zkServers}
      - name: zkPort
        value: ${kafka.mapper.zkPort}
      # Retry Properties
      - name: "retryInitialDelayMs"
        value: 60000
      - name: "retryDelayMultiplier"
        value: 1.5
      - name: "retryDelayMaxms"
        value: 14400000
      - name: "retryLimit"
        value: 0

# spout deFinitions
spouts:

  - id: "kafka-spout"
    className: "org.apache.storm.kafka.Kafkaspout"
    parallelism: ${kafka.spout.parallelism}
    constructorArgs:
      - ref: "kafkaspoutConfig"

相关 POM 条目：

        <dependency>
            <groupId>org.apache.heron</groupId>
            <artifactId>heron-api</artifactId>
            <version>0.20.3-incubating</version>
        </dependency>

        <dependency>
            <groupId>org.apache.heron</groupId>
            <artifactId>heron-storm</artifactId>
            <version>0.20.3-incubating</version>
        </dependency>

        <dependency>
            <groupId>org.apache.storm</groupId>
            <artifactId>storm-kafka</artifactId>
            <version>1.0.6</version>
        </dependency>

Main 方法似乎运行良好：

Apr 30,2021 4:38:49 PM org.apache.heron.eco.parser.Ecoparser loadTopologyFromYaml
INFO: Parsing eco config file
Apr 30,2021 4:38:49 PM org.apache.heron.eco.parser.Ecoparser loadTopologyFromYaml
INFO: Performing property substitution.
Apr 30,2021 4:38:49 PM org.apache.heron.eco.parser.Ecoparser loadTopologyFromYaml
INFO: Performing environment variable substitution.
topology type is Storm
Apr 30,2021 4:38:49 PM org.apache.heron.eco.builder.storm.EcoBuilder buildConfig
INFO: Building topology config
Apr 30,2021 4:38:49 PM org.apache.heron.eco.Eco printTopologyInfo
INFO: ---------- TOPOLOGY DETAILS ----------
Apr 30,2021 4:38:49 PM org.apache.heron.eco.Eco printTopologyInfo
INFO: Topology Name: kafkaTopology-XXX_topologyVersion_XXX
Apr 30,2021 4:38:49 PM org.apache.heron.eco.Eco printTopologyInfo
INFO: --------------- spoutS ---------------
Apr 30,2021 4:38:49 PM org.apache.heron.eco.Eco printTopologyInfo
INFO: kafka-spout [1] (org.apache.storm.kafka.Kafkaspout)
Apr 30,2021 4:38:49 PM org.apache.heron.eco.Eco printTopologyInfo
INFO: ---------------- BOLTS ---------------
Apr 30,2021 4:38:49 PM org.apache.heron.eco.Eco printTopologyInfo
INFO: --------------- STREAMS ---------------
Apr 30,2021 4:38:49 PM org.apache.heron.eco.Eco printTopologyInfo
INFO: --------------------------------------
Apr 30,2021 4:38:49 PM org.apache.heron.eco.builder.storm.EcoBuilder buildTopologyBuilder
INFO: Building components
Apr 30,2021 4:38:49 PM org.apache.heron.eco.builder.storm.EcoBuilder buildTopologyBuilder
INFO: Building spouts
Apr 30,2021 4:38:49 PM org.apache.heron.eco.builder.storm.EcoBuilder buildTopologyBuilder
INFO: Building bolts
Apr 30,2021 4:38:49 PM org.apache.heron.eco.builder.storm.EcoBuilder buildTopologyBuilder
INFO: Building streams

Process finished with exit code 0

问题 1： 拓扑立即退出，是否有等效于 Flux '--sleep' 的 Eco 标志以使其运行一段时间（用于调试等）？

问题 2： 有点惊讶我需要拉进 Storm-kafka（以为会有 heron 等价物） - 这是否正确（或其他一些神器？），如果是这样， 1.0.6 是一个可以使用的好版本还是 heron 与其他版本一起使用效果更好？

问题 3： 上面是 YAML 中的 type: "storm"，尝试 type: "heron" 会出现以下错误：

INFO: Building spouts
Exception in thread "main" java.lang.classCastException: class org.apache.storm.kafka.Kafkaspout cannot be cast to class org.apache.heron.api.spout.IRichspout (org.apache.storm.kafka.Kafkaspout and org.apache.heron.api.spout.IRichspout are in unnamed module of loader 'app')
    at org.apache.heron.eco.builder.heron.spoutBuilder.buildspouts(spoutBuilder.java:42)
    at org.apache.heron.eco.builder.heron.EcoBuilder.buildTopologyBuilder(EcoBuilder.java:70)
    at org.apache.heron.eco.Eco.submit(Eco.java:125)
    at org.apache.heron.eco.Eco.main(Eco.java:161)
    at KafkaTopology.main(KafkaTopology.java:26)

Process finished with exit code 1

这只是它使用 Kafka 的方式吗，类型需要是 Storm 而不是 heron，或者这里有一些解决方法吗？

解决方法

https://search.maven.org/search?q=heron-kafka

Heron 有多个 Kafka Spout。我使用 Storm(storm-kafka-client-2.1) 克隆并在生产中使用它。
https://search.maven.org/artifact/com.github.thinker0.heron/heron-kafka-client/1.0.4.1/jar

--verbose：我不知道为什么拓扑会对你关闭。尝试使用 --sleep 标志运行您的提交。此时 Question 2 参数的功能不存在。如果您需要，它可以是添加的功能。

Question 3：有一个 Heron 等价物。在 Heron 被捐赠给 Apache 之后，需要做很多工作才能发布二进制版本。大部分工作已经完成。在下一个版本中，我希望所有二进制工件都能得到适当的分发。

# Note,I manually created this entire path before ever downloading tfhub models /opt/tfhub/tf2/bert_en_uncased_L-12_H-768_A-12_4/：出现此问题是因为它根据指定的类型查找某个包中的螺栓/喷口。当输入“storm”时，它期望它实现或扩展的类是“org.apache.storm”。当输入“heron”时，它期望它实现或扩展的类是“org.apache.heron”。如果您使用依赖项storm-kafka，则类型需要为“storm”。苍鹭等价物可以在这里找到。 https://search.maven.org/search?q=heron-kafka

将 Storm 1 Kafka 拓扑转换为 Heron，有几个问题

如何解决将 Storm 1 Kafka 拓扑转换为 Heron，有几个问题

解决方法

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