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Date: Wed, 14 Feb 2007 02:53:05 -0800 (PST)
From: "Arun C Murthy (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Updated: (HADOOP-333) we should have some checks that the
 sort benchmark generates correct outputs
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     [ https://issues.apache.org/jira/browse/HADOOP-333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy updated HADOOP-333:
---------------------------------

    Attachment: HADOOP-333_20070214_2.patch

Here is another patch incorporating Owen's f/b:
a) Validates the no. of bytes and records in sort's input & output.
b) Validates the xor of the md5's of each key/value pair
c) Ensures same key/value is present in both input and output.

Run this as:
hadoop jar hadoop-0.11.2-dev-examples.jar sortvalidator -sortInput /randomwriter/input -sortOutput /randomwriter/output 


> we should have some checks that the sort benchmark generates correct outputs
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-333
>                 URL: https://issues.apache.org/jira/browse/HADOOP-333
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Owen O'Malley
>         Assigned To: Arun C Murthy
>         Attachments: HADOOP-333_20070213_1.patch, HADOOP-333_20070214_2.patch
>
>
> We should implement some checks of the input versus output of the sort benchmark to get some correctness guarantees:
> 1. the number of records
> 2. the number of bytes
> 3. the output records are in fact sorted
> 4. the xor of the md5 of each record's key/value pair

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