随笔分类 -  hadoop

Hadoop+HBase+ZooKeeper三者关系与安装配置
摘要：这里有几个主要关系： 1.经过Map、Reduce运算后产生的结果看上去是被写入到HBase了，但是其实HBase中HLog和StoreFile中的文件在进行flush to disk操作时，这两个文件存储到了HDFS的DataNode中，HDFS才是永久存储。 2.ZooKeeper跟Hadoop 阅读全文
posted @ 2017-06-13 15:49 土豆真好吃呀 阅读(747) 评论(0) 推荐(0)
copyFromLocal: File /test/file/test.txt._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 2 datanode(s) running and 2 node(s) are excluded in this operation.
摘要：copyFromLocal: File /test/file/test.txt._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 2 datanode(s) running 阅读全文
posted @ 2017-06-08 17:05 土豆真好吃呀 阅读(3010) 评论(0) 推荐(0)