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From Ted Yu <yuzhih...@gmail.com>
Subject Re: HDFS how to specify the exact datanode to put data on?
Date Mon, 20 Jul 2015 03:17:02 GMT
DFSClient#create() allows you to pass favored nodes. 

Does that serve your needs ?



> On Jul 19, 2015, at 7:30 PM, Shiyao Ma <i@introo.me> wrote:
> 
> Hi,
> 
> 
> I'd like to put my data selectively on some datanodes.
> 
> Currently I can do that by shutting down un-needed datanodes. But this is a little laborsome.
> 
> Is it possible to directly specify the datanodes I'd like to put the data on when doing
operations like: hdfs dfs -put /
> 
> 
> TIA.
> 
> -- 
> 
> 吾輩は猫である。ホームーページはhttps://introo.me。

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