Question

我刚刚安装了jobtracker和任务跟踪器，但是一旦我启动了任何任务工具工作跟踪器主页给出以下错误：

java.lang.NoSuchMethodError: sun.misc.FloatingDecimal.digitsRoundedUp()Z
    at java.text.DigitList.set(DigitList.java:292)
    at java.text.DecimalFormat.format(DecimalFormat.java:599)
    at java.text.DecimalFormat.format(DecimalFormat.java:522)
    at java.text.NumberFormat.format(NumberFormat.java:271)
    at org.apache.hadoop.mapred.jobtracker_jsp.generateSummaryTable(jobtracker_jsp.java:26)
    at org.apache.hadoop.mapred.jobtracker_jsp._jspService(jobtracker_jsp.java:146)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
    at org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:109)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1069)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
    at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

而在jobtracker :: 50030 / machines.jsp？type = active中，所有tasktrackers都处于运行状态。

Hadoop版本： Hadoop 2.0.0-cdh4.6.0和 java版本：＆＃34; 1.7.0_55＆＃34;

我的jobtracker / tasktracker一切正常，但我无法访问jobtracker的网页主页。同样在hbase中我在每次命令运行时都会遇到此异常，但是hbase工作正常。

HBase的（主）：003：0＆GT;名单表
T1
Java :: JavaLang :: NoSuchMethodError：sun.misc.FloatingDecimal.digitsRoundedUp（）Z 请给我任何建议。

Answer 1

修复此问题实际上安装java时我从maven repository手动下载了floatingdecimal.jar ，这导致了问题。删除jar后不仅解决了jobtracker问题，而且还删除了hbase异常。

无法访问Hadoop Jobtracker Web主页

1 个答案: