我将所有环境设置为在 IntelliJ 中运行 hadoop 应用程序。现在，我遇到了一些问题，因为我的代码编译时没有错误消息，尽管我没有 hadoop 输出。
所以，我不得不构建工件，在我的本地 hadoop 上运行它，然后得到这个错误
Found interface org.apache.hadoop.mapreduce.TaskAttemptContext, but class was expected
at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
然后我就可以调试它了。我的问题是为什么这个错误没有显示在我的 IntelliJ 控制台中？
编辑:在屏幕截图中，运行配置 设置。
和我的本地命令
/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:57826,suspend=y,server=n -Dvisualvm.id=1437944439130793000 -Dfile.encoding=UTF-8 -classpath "/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/lib/javafx-doclet.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/lib/tools.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/htmlconverter.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Users/$myusername/Desktop/Sites/hadoop/avrosation/out/production/avrosation:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/hadoop-common-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/yarn/hadoop-yarn-api-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/yarn/hadoop-yarn-common-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/activation-1.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/asm-3.2.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-io-2.4.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-lang-2.6.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-logging-1.1.3.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-math3-3.1.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/curator-client-2.7.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/curator-framework-2.7.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/gson-2.2.4.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/hadoop-annotations-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/hadoop-auth-2.7.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/hamcrest-core-1.3.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/htrace-core-3.1.0-incubating.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/httpclient-4.2.5.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/httpcore-4.2.5.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jets3t-0.9.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/jsr305-3.0.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/junit-4.11.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/slf4j-api-1.7.10.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/stax-api-1.0-2.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/xz-1.0.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/zookeeper-3.4.6.jar:/usr/local/Cellar/hadoop/2.7.0/libexec/share/hadoop/common/lib/snappy-java-1.0.5.jar:/Users/$myusername/Documents/artifacts/avro-1.7.7.jar:/Users/$myusername$myusername/Documents/artifacts/avro-mapred-1.7.7-hadoop2.jar:/Applications/IntelliJ IDEA 13 CE.app/lib/idea_rt.jar" org.avrosation.ParseXML /Users/$myusernameyusername/Desktop/Sites/hadoop/avrosation/outfile.avro outfiles
最佳答案
您的 IntelliJ 与 hadoop 命令的行为不同的原因是因为主类不同。
您的 IntelliJ 的“运行配置”显示 ParseXML 作为 JVM 的主类，而 hadoop 命令运行 RunJar作为主类，它将您的 ParseXML 类及其参数作为程序参数
除了主类，还可以查看hadoop command (它只是一个 shell 脚本；sh -x 有帮助)在为 java 命令调用主类之前查看它对环境变量和系统属性做了什么。
关于java - IntelliJ 不显示 hadoop 错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/31641005/
我得到了一个包含嵌套链接的表单。编辑时链接字段为空的问题。这是我的表格:Editingkategori{:action=>'update',:id=>@konkurrancer.id})do|f|%>'Trackingurl',:style=>'width:500;'%>'Editkonkurrence'%>|我的konkurrencer模型:has_one:link我的链接模型:classLink我的konkurrancer编辑操作:defedit@konkurrancer=Konkurrancer.find(params[:id])@konkurrancer.link_attrib
大约一年前，我决定确保每个包含非唯一文本的Flash通知都将从模块中的方法中获取文本。我这样做的最初原因是为了避免一遍又一遍地输入相同的字符串。如果我想更改措辞，我可以在一个地方轻松完成，而且一遍又一遍地重复同一件事而出现拼写错误的可能性也会降低。我最终得到的是这样的:moduleMessagesdefformat_error_messages(errors)errors.map{|attribute,message|"Error:#{attribute.to_s.titleize}#{message}."}enddeferror_message_could_not_find(obje
我主要使用Ruby来执行此操作，但到目前为止我的攻击计划如下:使用gemsrdf、rdf-rdfa和rdf-microdata或mida来解析给定任何URI的数据。我认为最好映射到像schema.org这样的统一模式，例如使用这个yaml文件，它试图描述数据词汇表和opengraph到schema.org之间的转换:#SchemaXtoschema.orgconversion#data-vocabularyDV:name:namestreet-address:streetAddressregion:addressRegionlocality:addressLocalityphoto:i
所以我在关注Railscast，我注意到在html.erb文件中，ruby代码有一个微弱的背景高亮效果，以区别于其他代码HTML文档。我知道Ryan使用TextMate。我正在使用SublimeText3。我怎样才能达到同样的效果？谢谢! 最佳答案 为SublimeText安装ERB包。假设您安装了SublimeText包管理器*，只需点击cmd+shift+P即可获得命令菜单，然后键入installpackage并选择PackageControl:InstallPackage获取包管理器菜单。在该菜单中，键入ERB并在看到包时选择
我真的很习惯使用Ruby编写以下代码:my_hash={}my_hash['test']=1Java中对应的数据结构是什么？ 最佳答案 HashMapmap=newHashMap();map.put("test",1);我假设？ 关于java-等价于Java中的RubyHash，我们在StackOverflow上找到一个类似的问题： https://stackoverflow.com/questions/22737685/
我遵循MichaelHartl的“RubyonRails教程:学习Web开发”，并创建了检查用户名和电子邮件长度有效性的测试(名称最多50个字符，电子邮件最多255个字符)。test/helpers/application_helper_test.rb的内容是:require'test_helper'classApplicationHelperTest在运行bundleexecraketest时，所有测试都通过了，但我看到以下消息在最后被标记为错误:ERROR["test_full_title_helper",ApplicationHelperTest,1.820016791]test
我试图在索引页中创建一个超链接，但它没有显示，也没有给出任何错误。这是我的index.html.erb代码。ListingarticlesTitleTextssss我检查了我的路线，我认为它们也没有问题。PrefixVerbURIPatternController#Actionwelcome_indexGET/welcome/index(.:format)welcome#indexarticlesGET/articles(.:format)articles#indexPOST/articles(.:format)articles#createnew_articleGET/article
我是rails的新手，想在form字段上应用验证。myviewsnew.html.erb.....模拟.rbclassSimulation{:in=>1..25,:message=>'Therowmustbebetween1and25'}end模拟Controller.rbclassSimulationsController我想检查模型类中row字段的整数范围，如果不在范围内则返回错误信息。我可以检查上面代码的范围，但无法返回错误消息提前致谢 最佳答案 关键是您使用的是模型表单，一种显示ActiveRecord模型实例属性的表单。c
我正在尝试编写一个将文件上传到AWS并公开该文件的Ruby脚本。我做了以下事情:s3=Aws::S3::Resource.new(credentials:Aws::Credentials.new(KEY,SECRET),region:'us-west-2')obj=s3.bucket('stg-db').object('key')obj.upload_file(filename)这似乎工作正常，除了该文件不是公开可用的，而且我无法获得它的公共(public)URL。但是当我登录到S3时，我可以正常查看我的文件。为了使其公开可用，我将最后一行更改为obj.upload_file(file
我克隆了一个rails仓库，我现在正尝试捆绑安装背景:OSXElCapitanruby2.2.3p173(2015-08-18修订版51636)[x86_64-darwin15]rails-v在您的Gemfile中列出的或native可用的任何gem源中找不到gem'pg(>=0)ruby'。运行bundleinstall以安装缺少的gem。bundleinstallFetchinggemmetadatafromhttps://rubygems.org/............Fetchingversionmetadatafromhttps://rubygems.org/...Fe