Re: A question about the namenode's decision on the data placement of a new file

For 0.20 version, you should go to ReplicationTargetChooser which is called from FSNamesystem. Le Hieu Hanh On Sat, Aug 25, 2012 at 9:00 AM, Vivi Lang wrote: > Thanks but I found that BlockPlacementPolicy only appear after 0.21.0? Is > there any similar class or function appeared in 0.20. > >

Re: A question about the namenode's decision on the data placement of a new file

Thanks but I found that BlockPlacementPolicy only appear after 0.21.0? Is there any similar class or function appeared in 0.20. On Fri, Aug 24, 2012 at 6:03 PM, Andy Isaacson wrote: > On Fri, Aug 24, 2012 at 3:33 PM, wei xu wrote: > > I am doing some research on the data placement, but I am no

Re: A question about the namenode's decision on the data placement of a new file

On Fri, Aug 24, 2012 at 3:33 PM, wei xu wrote: > I am doing some research on the data placement, but I am not quite familiar > with the Hadoop, is there any one who can tell me when a new file be added > into the HDFS, which function will be called by namenode to make a decision > on the allocatio

A question about the namenode's decision on the data placement of a new file

Hi, I am doing some research on the data placement, but I am not quite familiar with the Hadoop, is there any one who can tell me when a new file be added into the HDFS, which function will be called by namenode to make a decision on the allocation ( I mean, if there has a list of datanodes and th