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-Original Message-
From: ext Harsh J [mailto:ha...@cloudera.com]
Sent: Monday, June 11, 2012 11:22 AM
To: mapreduce-user@hadoop.apache.org
Subject: Re: How to use the reduce result in next code part
Hi,
Can your rowkey_list requiring logic not be implemented within a
single reduce(key, values
Hello,
Just do a quick search for chain map reduce you would get example.
Regards,
Jagat Singh
---
Sent from Mobile , short and crisp.
On 11-Jun-2012 8:40 AM, "Liu, Keyan (NSN - CN/Beijing)"
wrote:
> **
>
> Hi All,
>
> I am using Mapreduce to scan HBase region to get the rowkey_list t
Hi,
Can your rowkey_list requiring logic not be implemented within a
single reduce(key, values) call itself? If you require the
whole list before processing, and the whole lists may be small, then
collecting their cloned copies in memory is also one way out.
On Mon, Jun 11, 2012 at 8:39 AM, Liu,
Hi All,
I am using Mapreduce to scan HBase region to get the rowkey_list that
related with one query.
In Map period, each mapper outputs partial rowkey_list. In reduce
period, the reducer will collect and sort all rowkey.
If I need to use rowkey_list result of the reduce, how can transport the
row
Hi All,
I am using Mapreduce to scan HBase region to get the rowkey_list that
related with one query.
In Map period, the mapper outputs partial rowkey_list. In reduce period,
the reducer will collect and sort all rowkey.
If I need to use rowkey_list result of reduce, how can transport the
rowkey_l
