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Question:I have an application, but to test something, I need to change value of aString[].But when I do it usingchange valueinvariablestab, everytime... 阅读全文
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原文地址:http://chenzhou123520.iteye.com/blog/1931670在开发时,有时候可能需要根据不同的环境设置不同的系统参数,我们都知道,在使用java -jar命令时可以使用-D参数来设置运行时的系统变量,同样,在Eclipse中运行java程序时,我们怎么设置该系统... 阅读全文
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We have spent last couple of months stabilizing thelock detection functionality in Plumbr. During this we have stumbled into many tricky concurrency i... 阅读全文
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HDFS ArchitectureIntroductionThe Hadoop Distributed File System (HDFS) is a distributed file system designed to run on commodity hardware. It has many... 阅读全文
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HDFS Users GuidePurposeOverviewPrerequisitesWeb InterfaceShell CommandsDFSAdmin CommandSecondary NameNodeCheckpoint NodeBackup NodeImport CheckpointRe... 阅读全文