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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Data Placement Strategy for HDFS
Date Wed, 14 Jan 2015 22:43:58 GMT
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> 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> wrote:
>
>> See this thread: 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> 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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