我用win10上安裝的eclipse訪問Ubuntu虛擬機上偽分布式搭建的hadoop2.6.0 就出現這個問題了，
An internal error occurred during: "Map/Reduce location status updater".
java.lang.NullPointerException
at org.apache.hadoop.mapred.JobClient.getAllJobs(JobClient.java:814)
at org.apache.hadoop.mapred.JobClient.jobsToComplete(JobClient.java:790)
at org.apache.hadoop.eclipse.server.HadoopServer$LocationStatusUpdater.run(HadoopServer.java:119)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
還有這個問題
The command ("dfs.browser.action.delete") is undefined
The command ("dfs.browser.action.reconnect") is undefined
The command ("dfs.browser.action.refresh") is undefined
The command ("dfs.browser.action.download") is undefined
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