我们目前开发了一个使用nutch2和hbase后端的爬虫程序。我们使用selenium web驱动程序为web解析器创建了一个插件。在本地模式下一切正常。但是，当我们尝试使用nutch部署模式将其部署到集群上时，出现了错误，说明“无法成功解析”。下面是错误。
java.util.concurrent.executionexception:java.lang.nosuchfielderror:java.util.concurrent.futuretask.report（futuretask）处的示例。java:122)在java.util.concurrent.futuretask.get（futuretask。java:206)在org.apache.nutch.parse.parseutil.runparser（parseutil。java:164)在org.apache.nutch.parse.parseutil.parse（parseutil。java:146)在org.apache.nutch.parse.parserchecker.run（parserchecker。java:142)在org.apache.hadoop.util.toolrunner.run（toolrunner。java:70)在org.apache.nutch.parse.parserchecker.main（parserchecker。java:214)在sun.reflect.nativemethodaccessorimpl.invoke0（本机方法）在sun.reflect.nativemethodaccessorimpl.invoke（nativemethodaccessorimpl）。java:62)在sun.reflect.delegatingmethodaccessorimpl.invoke（delegatingmethodaccessorimpl。java:43)在java.lang.reflect.method.invoke（方法。java:497)在org.apache.hadoop.util.runjar.run（runjar。java:221)在org.apache.hadoop.util.runjar.main（runjar。java:136)原因：java.lang.nosuchfielderror:示例org.apache.http.conn.ssl.sslconnectionsocketfactory.（sslconnectionsocketfactory。java:144)位于org.openqa.selenium.remote.internal.httpclientfactory.getclientconnectionmanager（httpclientfactory）。java:71)位于org.openqa.selenium.remote.internal.httpclientfactory.（httpclientfactory。java:57)在org.openqa.selenium.remote.internal.httpclientfactory.（httpclientfactory。java:60)位于org.openqa.selenium.remote.internal.apachehttpclient$factory.getdefaulthttpclientfactory（apachehttpclient）。java:251)在org.openqa.selenium.remote.internal.apachehttpclient$factory。java:228)在org.openqa.selenium.remote.httpcommandexecutor.getdefaultclientfactory（httpcommandexecutor。java:96)位于org.openqa.selenium.remote.httpcommandexecutor.（httpcommandexecutor。java:70)位于org.openqa.selenium.remote.httpcommandexecutor.（httpcommandexecutor。java:58)在org.openqa.selenium.firefox.internal.newprofileextensionconnection.start（newprofileextensionconnection）。java:97)在org.openqa.selenium.firefox.firefoxdriver.startclient（firefoxdriver。java:271)在org.openqa.selenium.remote.remotewebdriver。java:117)在org.openqa.selenium.firefox.firefoxdriver。java:216)在org.openqa.selenium.firefox.firefoxdriver.（firefoxdriver。java:211)在org.openqa.selenium.firefox.firefoxdriver。java:207)在org.openqa.selenium.firefox.firefoxdriver。java:124)位于org.apache.nutch.store.readable.seleniumhandlers.httpwebclient$1.initialvalue（httpwebclient.html）。java:148)在org.apache.nutch.store.readable.seleniumhandlers.httpwebclient$1.initialvalue（httpwebclient.html）。java:49)在java.lang.threadlocal.setinitialvalue（threadlocal。java:180)在java.lang.threadlocal.get（threadlocal。java:170)在org.apache.nutch.store.readable.seleniumhandlers.httpwebclient.gethtmlpage（httpwebclient。java:318)在org.apache.nutch.store.readable.seleniumhandlers.httpwebclient.gethtmlpage（httpwebclient。java:309)在org.apache.nutch.store.readable.parserhandlers.jsouptokepia.constructjson（jsouptokepia。java:108)在org.apache.nutch.store.readable.storereadable.addjsontopage（storereadable。java:349)在org.apache.nutch.store.readable.storereadable.getparse（storereadable。java:311)在org.apache.nutch.parse.parsecallable.call（parsecallable。java:36)在org.apache.nutch.parse.parsecallable.call（parsecallable。java:23)在java.util.concurrent.futuretask.run（futuretask。java:266)在java.util.concurrent.threadpoolexecutor.runworker（threadpoolexecutor。java:1142)在java.util.concurrent.threadpoolexecutor$worker.run（threadpoolexecutor。java:617)在java.lang.thread.run（线程。java:745)
看起来selenium在hadoop上不起作用。我认为这是相关的问题。是因为selenium不能在hadoop上运行，还是对这些问题有什么建议？