Hi, It is well-known that a HDFS file is divided into several chunks of blocks. Each block is the basic storage unit. To improve the read/write performance each block would be better stored contiguously in the disk to reduce the seek time. But we have the concern that HDFS is built upon Linux OS which might scatter its files around disks. This might break our contiguity property. If HDFS can waive this concern, how does it achieve this?
Best Regards, Patrick Yu (游昭霖) Cloud Computing Research Center, Quanta Research Institute +886-3-3272345 Ext 18926 patrick...@quantatw.com 211, Wen Hwa 2nd Rd., Kui Shan, Tao Yuan, 33377, Taiwan
