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From Binglin Chang <decst...@gmail.com>
Subject Re: 【data migrate from hdfs0.20.* to hdfs-2.0.5(HA)】
Date Fri, 26 Jul 2013 07:22:58 GMT
have you looked at distcp over hftp?
http://hadoop.apache.org/docs/r1.0.4/distcp.html#cpver


On Fri, Jul 26, 2013 at 2:28 PM, Bing Jiang <jiangbinglover@gmail.com>wrote:

>
> hi,all
>
> Have you tried to find out a way to make data transformation between two
> hdfs cluster, which are the different version.
>
> In our environment, one data in 0.20.*, and we want to migrate into
> 2.0.5(HA).
>
> I try to use distcp, but it occurs to rpc version dismatch.
>
> org.apache.hadoop.ipc.RemoteException: Server IPC version 8 cannot
>> communicate with client version 4
>>
>
> Could anyone give me an efficient way to make it?
>
> Thanks.
>
> --
> Bing Jiang
> weibo: http://weibo.com/jiangbinglover
> BLOG: www.binospace.com
> BLOG: http://blog.sina.com.cn/jiangbinglover
> Focus on distributed computing, HDFS/HBase
>

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