Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Date: Tue, 10 Jan 2012 10:24:38 +0000 (UTC)
From: "Jai Kumar Singh (Created) (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: 
 <395140074.25062.1326191078581.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (HBASE-5166) MultiThreaded Table Mapper analogous
 to MultiThreaded Mapper in hadoop
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

MultiThreaded Table Mapper analogous to MultiThreaded Mapper in hadoop
----------------------------------------------------------------------

                 Key: HBASE-5166
                 URL: https://issues.apache.org/jira/browse/HBASE-5166
             Project: HBase
          Issue Type: Improvement
            Reporter: Jai Kumar Singh
            Priority: Minor


There is no MultiThreadedTableMapper in hbase currently just like we have a MultiThreadedMapper in Hadoop for IO Bound Jobs. 
UseCase, webcrawler: take input (urls) from a hbase table and put the content (urls, content) back into hbase. 
Running these kind of hbase mapreduce job with normal table mapper is quite slow as we are not utilizing CPU fully (N/W IO Bound).

Moreover, I want to know whether It would be a good/bad idea to use HBase for these kind of usecases ?. 


--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira