每次启动start-dfs.sh和start-yarn.sh之后,察看50070,datanode服务和数量都正常
,察看8088发现active nodes 为0,一开始没在意,后来在集群上运行mr程序,每次到running job处就卡住了,
百度了一下,搞定!MapReduce任务运行到running job卡住
http://blog.csdn.net/aspkhdp/article/details/49996689
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