hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Schubert Zhang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1778) Improve PerformanceEvaluation
Date Wed, 19 Aug 2009 11:02:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1778?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Schubert Zhang updated HBASE-1778:

    Status: Patch Available  (was: Open)

The usage of this PerformanceEvaluation is not changed. You can use the commands it as usual.

1. Add PeInputSplit and PeInputFormat classes for strict map splits and MapReduce job implementation.
    PeInputFormat.getSplits(...) method reads and parses each line from input file. The row
range parameters are filled into  PeInputSplit.
    Each map task only read one record from its PeInputSplit.

2. Change EvaluationMapTask and doMapReduce for hadoop-0.20.0 mapreduce.

> Improve PerformanceEvaluation
> -----------------------------
>                 Key: HBASE-1778
>                 URL: https://issues.apache.org/jira/browse/HBASE-1778
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: test
>    Affects Versions: 0.20.0
>            Reporter: Schubert Zhang
>            Assignee: Schubert Zhang
>            Priority: Minor
>             Fix For: 0.20.1
> Current PerformanceEvaluation class have two problems:
> - It is not updated for hadoop-0.20.0. 
> - The approach to split maps is not strict. Need to provide correct InputSplit and InputFormat
classes. Current code uses TextInputFormat and FileSplit, it is not reasonable.
> We will fix these problems.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message