如何在Eclipse中调试Apache Storm

Question

我们可以使用特定的参数生成风暴jar。然而，如果我们需要在本地和远程调试这个项目(实际上是远)?

如果是简单的jar，那我们可以调试。但是，这里我们使用以下命令部署jar:storm jar project.jar main_class_name

不确定我们如何部署storm拓扑，以便我们可以在调试模式下做storm项目?

请找到更新的yaml文件如下:

    # Licensed to the Apache Software Foundation (ASF) under one
    # or more contributor license agreements.  See the NOTICE file
    # distributed with this work for additional information
    # regarding copyright ownership.  The ASF licenses this file
    # to you under the Apache License, Version 2.0 (the
    # "License"); you may not use this file except in compliance
    # with the License.  You may obtain a copy of the License at
    #
    # http://www.apache.org/licenses/LICENSE-2.0
    #
    # Unless required by applicable law or agreed to in writing, software
    # distributed under the License is distributed on an "AS IS" BASIS,
    # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    # See the License for the specific language governing permissions and
    # limitations under the License.
    ########### These MUST be filled in for a storm configuration
    # storm.zookeeper.servers:
    #     - "server1"
    #     - "server2"
    # 
    # nimbus.host: "nimbus"
    # 
    # 
    # ##### These may optionally be filled in:
    #    
    ## List of custom serializations
    # topology.kryo.register:
    #     - org.mycompany.MyType
    #     - org.mycompany.MyType2: org.mycompany.MyType2Serializer
    #
    ## List of custom kryo decorators
    # topology.kryo.decorators:
    #     - org.mycompany.MyDecorator
    #
    ## Locations of the drpc servers
    # drpc.servers:
    #     - "server1"
    #     - "server2"
    ## Metrics Consumers
    # topology.metrics.consumer.register:
    #   - class: "backtype.storm.metric.LoggingMetricsConsumer"
    #     parallelism.hint: 1
    #   - class: "org.mycompany.MyMetricsConsumer"
    #     parallelism.hint: 1
    #     argument:
    #       - endpoint: "metrics-collector.mycompany.org"
    worker.childopts:"-agentlib:jdwp=transport=dt_socket,server=y,address=8999,suspend=n"
 

Answer 1

如果您想要远程调试，您需要在worker jvm中启用调试。查看正确的Java标志:远程调试Java应用程序

将所有/共享管理器storm.yaml中的此标志添加到worker.childopts条目(可能需要重新启动Storm集群)。你需要确保，每台主机只启动一个worker !否则，两个jvm都想打开相同的端口，其中一个当然会失败。

在Eclipse中，选择Run -> Debug Configuration并创建新的Remote Java Application。指定要调试的正在运行的worker JVM的主机和端口(端口必须与worker.childopts中指定的端口相同)。

Answer 2

要启用跨各种主管vm的调试，您所要做的就是编辑storm。并更新worker。child的条目类似:

工人。childopts:"-agentlib: jdwp =运输= dt_socket, server = y,暂停= n,地址= 5% id %"

如果您在端口6700,6701,6702等上有您的主管，这将在56700,56701,56702等上创建一个调试端口。