On 9 November 2012 13:29, Binglin Chang <decst...@gmail.com> wrote: > If you just need some experiment setup, > just set dfs.replication to 1, and using dfsclient on the same datenode to > write data, the block is guaranteed to be the same datanode. >
There's no guarantees: if there is no space on the local DN it will be moved off-server.