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https://issues.apache.org/jira/browse/HBASE-5166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13216319#comment-13216319
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Hudson commented on HBASE-5166:
-------------------------------
Integrated in HBase-TRUNK-security #122 (See
[https://builds.apache.org/job/HBase-TRUNK-security/122/])
HBASE-5166 MultiThreaded Table Mapper analogous to MultiThreaded Mapper in
hadoop (Revision 1293098)
Result = FAILURE
stack :
Files :
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/mapreduce/MultithreadedTableMapper.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/mapreduce/TestMulitthreadedTableMapper.java
> 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
> Labels: multithreaded, tablemapper
> Fix For: 0.94.0
>
> Attachments: 0001-Added-MultithreadedTableMapper-HBASE-5166.patch,
> 0003-Added-MultithreadedTableMapper-HBASE-5166.patch,
> 0005-HBASE-5166-Added-MultithreadedTableMapper.patch,
> 0006-HBASE-5166-Added-MultithreadedTableMapper.patch,
> 0008-HBASE-5166-Added-MultithreadedTableMapper.patch, 5166-v9.txt
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> 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 ?.
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