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在学习Hadoop的过程中，你可能会遇到Hadoop Hdfs配置问题，本节就接着上节和大家继续分享一下Hadoop Hdfs配置方法，相信通过本节的学习你一定会对Hadoop的配置有新的认识。下面是具体步骤接介绍。1、配置slaves,修改conf/slavesdata-dfs复制hadoop-2...

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Hadoop hdfs+Spark配置

Hadoop hdfs配置(版本2.7) hadoop-env.sh export JAVA_HOME=/home/java/jdk1.8.0_45 hdfs-site.xml <name>dfs.nameservices</name> <value>guanji...

datenode节点超时时间设置，Hadoop启动不正常,HDFS冗余数据块的自动删除,NameNode安全模式问题,ntp时间服务同步,机架感知配置

1.Hadoop datanode节点超时时间设置 datanode进程死亡或者网络故障造成datanode无法与namenode通信，namenode不会立即把该节点判定为死亡，要经过一段时间，这段时间暂称作超时时长。HDFS默认的超时时长为10分钟+30秒。如果定义超时时间为timeout，则超...

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