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我以假分佈模式在Windows計算機上安裝了Hadoop,並嘗試運行MapReduce就業。該NameNode和Datanode的運行沒有任何問題,但是,在MapReduce工作保持與錯誤而失敗:Hadoop - Mkdirs無法創建C: Users acer AppData Local Temp hadoop-unjar778 7707269774970262 META-INF license
Exception in thread "main" java.io.IOException: Mkdirs failed to create C:\Users\acer\AppData\Local\Temp\hadoop-unjar778
7707269774970262\META-INF\license
at org.apache.hadoop.util.RunJar.ensureDirectory(RunJar.java:128)
at org.apache.hadoop.util.RunJar.unJar(RunJar.java:104)
at org.apache.hadoop.util.RunJar.unJar(RunJar.java:81)
at org.apache.hadoop.util.RunJar.run(RunJar.java:209)
我檢查了,我已經有充分的權限,該文件夾,我使用maven-shade-也試過插件沒有成功。