hadoop - 查找从 Oozie 协调器启动的工作流作业的堆栈跟踪

Question

我有一个符合此规范的基本 Oozie 协调器:

<coordinator-app name="my-coord" frequency="${coord:days(1)}"
                 start="${startDate}" end="${endDate}" timezone="UTC"
                 xmlns="uri:oozie:coordinator:0.4">
    <controls>
        <timeout>${timeout}</timeout>
    </controls>
    <action>
        <workflow>
            <app-path>${workflow}</app-path>
        </workflow>
    </action>
</coordinator-app>

它在计划的标称开始时间附近启动了工作流作业。但后来，日志显示工作流作业进入了失败状态。为了检索工作信息，我运行了:

oozie job -info 0000909-190113225141152-oozie-oozi-W

它提供了有用的信息，包括以下异常跟踪:

] Launcher exception: org.apache.spark.SparkException: Application application_1547448533998_26676 finished with failed status
org.apache.oozie.action.hadoop.JavaMainException: org.apache.spark.SparkException: Application application_1547448533998_26676 finished with failed status
        at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:59)
        at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:51)
        at org.apache.oozie.action.hadoop.JavaMain.main(JavaMain.java:35)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:242)
        at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
        at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
        at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1724)
        at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
Caused by: org.apache.spark.SparkException: Application application_1547448533998_26676 finished with failed status
        at org.apache.spark.deploy.yarn.Client.run(Client.scala:1122)
        at org.apache.spark.deploy.yarn.Client$.main(Client.scala:1169)
        at org.apache.spark.deploy.yarn.Client.main(Client.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:738)
        at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181)
        at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:56)
        ... 15 more

不幸的是，这个堆栈跟踪——显然是从 SparkSubmit 产生的——没有说明我的工作流作业(一个 Scala 程序)实际上失败的原因。

这似乎是一个很常见的场景——工作流逻辑失败并触发了它自己的堆栈跟踪。

在 Hadoop/Oozie/Coordinator/Workflow 设置中是否有其他地方可以查找此类堆栈跟踪？

Answer 1

在 Hadoop 环境中，您可以从 Yarn 资源管理器 View 访问所有应用程序日志。它应该向您显示所有正在运行的应用程序及其相关日志的列表。如果您在 Azure 中的 HDInsight 群集上运行此系统，那么您将在此链接中找到更多信息 https://learn.microsoft.com/en-us/azure/hdinsight/hdinsight-hadoop-access-yarn-app-logs-linux .在这里，日志位于 Ambari View -> Yarn -> Resource Manager Web View 中。否则，也许您的环境中也可能有类似的东西。