Cloudera 提交作业时出现Oozie空指针异常

仅尝试运行一个非常简单的字数计算示例，但在提交作业时获得以下空指针：

oozie作业-oozie=-config job.properties-run

[cloudera@localhost Oozie_Example]$ oozie job -oozie=http://localhost:11000/oozie/ -config job.properties -run
java.lang.RuntimeException: java.lang.NullPointerException
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1242)
    at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2714)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:477)
    at org.apache.oozie.client.OozieClient$JobSubmit.call(OozieClient.java:586)
    at org.apache.oozie.client.OozieClient$JobSubmit.call(OozieClient.java:561)
    at org.apache.oozie.client.OozieClient$ClientCallable.call(OozieClient.java:479)
    at org.apache.oozie.client.OozieClient.run(OozieClient.java:655)
    at org.apache.oozie.cli.OozieCLI.jobCommand(OozieCLI.java:918)
    at org.apache.oozie.cli.OozieCLI.processCommand(OozieCLI.java:579)
    at org.apache.oozie.cli.OozieCLI.run(OozieCLI.java:552)
    at org.apache.oozie.cli.OozieCLI.main(OozieCLI.java:199)
Caused by: java.lang.NullPointerException
    at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:106)
    at sun.misc.CharacterEncoder.encode(CharacterEncoder.java:188)
    at sun.net.www.protocol.http.NegotiateAuthentication.setHeaders(NegotiateAuthentication.java:156)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1482)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
    ... 8 more
java.lang.NullPointerException

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有什么想法吗？它发生得很早，所以我认为它与Oozie或namenode有关。

java.lang.NullPointerException

是由于job.properties文件中的错误造成的

您是否已将工作流XML放入HDFS中？此外，您还应指定：

oozie.wf.application.path=${nameNode}/user/${user.name}/oozie/workflow/wordcount/my-workflow.xml

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我想补充一下这个问题的答案

当oozie客户端收到NullPointerException时，这通常意味着该请求导致服务器线程失败。如果您想找出“真正”的原因，您应该查看服务器日志，例如CDH的/var/log/oozie/oozie.log

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在那里你可以找到详细的stacktrace。这证明是非常有帮助的。至少在我们的例子中，它准确地告诉我们发生了什么，比如“hdfs工作流文件不存在，等等……”

这不是Oozie本身发生的，而是客户端错误。也就是说，我怀疑它试图进行身份验证，但失败了……可能与kerberos有关？我使用的是kerberzied vmyes我在hdfs中有工作流xml，并尝试直接指定xml您可能缺少分配语句或某些内容与您所说的job.properties文件不在同一位置。是的，与我的job properties文件相关的没有指向正确的namenode

oozie.wf.application.path=${nameNode}/user/${user.name}/oozie/workflow/wordcount/my-workflow.xml