How can one query the mapreduce results from the dfs files ? - Newbee

[rajarsi <ra...@yahoo.com>]

Hi,

I have run the mapreduce job and created an index of Names which is duly
stored in the dfs. My question is, if we have to query the index by a
certain name, how can I do it ? Is there any sql-like mechanism for doing it
? Would I need to use another apache-developed-application on top of Hadoop
for the purpose or would I need to load the data from the dfs into a
database and perform queries then [shifting data from one storage to another
doesnt make much sense though] ? Your help will be appreciated. 


Thanks
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Re: How can one query the mapreduce results from the dfs files ? - Newbee

[Ted Dunning <td...@veoh.com>]

Look at Hbase.

There is also a simple implementation for storing a Map in a file and then
reloading it at a later time, but that doesn't sound like what you want.


On 2/5/08 8:39 AM, "rajarsi" <ra...@yahoo.com> wrote:

> 
> Hi,
> 
> I have run the mapreduce job and created an index of Names which is duly
> stored in the dfs. My question is, if we have to query the index by a
> certain name, how can I do it ? Is there any sql-like mechanism for doing it
> ? Would I need to use another apache-developed-application on top of Hadoop
> for the purpose or would I need to load the data from the dfs into a
> database and perform queries then [shifting data from one storage to another
> doesnt make much sense though] ? Your help will be appreciated.
> 
> 
> Thanks