摘要:
client调用FileSystem.open(),该FileSystem指向的实例是DistrbutedFileSystem(DFS),它通过RPC请求到Namenode.Namenode收到请求后,对于每一个块返回存有该副本的Datanode地址。并且依照“网络拓扑”来排序。(就近原则)DFS获... 阅读全文
posted @ 2015-05-27 22:08 LuckyBill 阅读(138) 评论(0) 推荐(0)
posted @ 2015-05-27 22:08 LuckyBill 阅读(138) 评论(0) 推荐(0)
posted @ 2015-05-17 22:01 LuckyBill 阅读(122) 评论(0) 推荐(0)
posted @ 2015-05-17 22:01 LuckyBill 阅读(116) 评论(0) 推荐(0)
posted @ 2015-05-17 21:51 LuckyBill 阅读(129) 评论(0) 推荐(0)
posted @ 2015-05-17 21:51 LuckyBill 阅读(126) 评论(0) 推荐(0)
posted @ 2015-05-05 10:21 LuckyBill 阅读(189) 评论(0) 推荐(0)
posted @ 2015-05-05 10:21 LuckyBill 阅读(173) 评论(0) 推荐(0)
posted @ 2015-04-21 12:01 LuckyBill 阅读(154) 评论(0) 推荐(0)
posted @ 2015-04-21 12:01 LuckyBill 阅读(160) 评论(0) 推荐(0)
posted @ 2015-04-19 15:51 LuckyBill 阅读(91) 评论(0) 推荐(0)