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From Fei Hu <hufe...@gmail.com>
Subject Re: Data Placement Strategy for HDFS
Date Thu, 15 Jan 2015 00:38:19 GMT
Thank you very much.

Fei

> On Jan 14, 2015, at 7:36 PM, Ted Yu <yuzhihong@gmail.com> wrote:
> 
> https://issues.apache.org/jira/browse/HDFS-7613 <https://issues.apache.org/jira/browse/HDFS-7613>
> 
> Cheers
> 
> On Wed, Jan 14, 2015 at 4:35 PM, Fei Hu <hufei68@gmail.com <mailto:hufei68@gmail.com>>
wrote:
> 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 <yuzhihong@gmail.com <mailto:yuzhihong@gmail.com>>
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 <hufei68@gmail.com <mailto:hufei68@gmail.com>>
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 <yuzhihong@gmail.com <mailto:yuzhihong@gmail.com>>
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 <hufei68@gmail.com <mailto:hufei68@gmail.com>>
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
>> 
>> 
> 
> 


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