Hi, Thank you for your help.
I searched HDFS-7613 by Google and the link https://issues.apache.org/jira/issues/?jql=project%20%3D%20HDFS%20AND%20text%20~%20%227613%22 <https://issues.apache.org/jira/issues/?jql=project%20=%20HDFS%20AND%20text%20~%20%227613%22>, but I could not find it. Could you email me the link? Thank you very much. Sincerely, Fei > On Jan 14, 2015, at 5:43 PM, Ted Yu <[email protected]> wrote: > > Fei: > You can watch this issue: > HDFS-7613 Block placement policy for erasure coding groups > > the solution there would be helpful to us. > > Cheers > > On Wed, Jan 14, 2015 at 11:04 AM, Fei Hu <[email protected] > <mailto:[email protected]>> wrote: > Thank you for your quick response. > > After reading the materials you recommended, my conclusion is that Hadoop > does not provide interface to customize the data placement policy. We need to > add some codes to the source package of HDFS. Is that right? > > Thanks, > Fei > > On Tue Jan 13 2015 at 10:42:27 PM Ted Yu <[email protected] > <mailto:[email protected]>> wrote: > See this thread: http://search-hadoop.com/m/lAh9i28K7 > <http://search-hadoop.com/m/lAh9i28K7> > > See also HDFS-7228 > > Cheers > > On Tue, Jan 13, 2015 at 7:33 PM, Fei Hu <[email protected] > <mailto:[email protected]>> wrote: > Hi, > > I want to customize the data placement strategy rather than using the default > strategy in HDFS. Is there any way to control which datanode the replica is > delivered to? > > Thank you in advance. > > Best regards, > Fei > >
