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Date: Mon, 10 May 2010 20:31:42 -0400 (EDT)
From: "Konstantin Boudnik (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-6332) Large-scale Automated Test Framework
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     [ https://issues.apache.org/jira/browse/HADOOP-6332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantin Boudnik updated HADOOP-6332:
---------------------------------------

    Attachment: HADOOP-6332.0.22.patch

Addressing comments. {{jar-test-system}} is removed from the build. 

Some additional investigation shows that in the current 0.20 implementation Herriot build also ships existing functional tests only. This clearly needs to be fixed for 0.20 and trunk. But for the common's trunk we don't need to target because there's no system tests just for the common component.

> Large-scale Automated Test Framework
> ------------------------------------
>
>                 Key: HADOOP-6332
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6332
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: test
>    Affects Versions: 0.22.0
>            Reporter: Arun C Murthy
>            Assignee: Konstantin Boudnik
>             Fix For: 0.22.0
>
>         Attachments: 6332-phase2.fix1.patch, 6332-phase2.fix2.patch, 6332-phase2.patch, 6332.patch, 6332.patch, 6332.patch, 6332_v1.patch, 6332_v2.patch, HADOOP-6332-MR.patch, HADOOP-6332-MR.patch, HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.patch, HADOOP-6332.patch
>
>
> Hadoop would benefit from having a large-scale, automated, test-framework. This jira is meant to be a master-jira to track relevant work.
> ----
> The proposal is a junit-based, large-scale test framework which would run against _real_ clusters.
> There are several pieces we need to achieve this goal:
> # A set of utilities we can use in junit-based tests to work with real, large-scale hadoop clusters. E.g. utilities to bring up to deploy, start & stop clusters, bring down tasktrackers, datanodes, entire racks of both etc.
> # Enhanced control-ability and inspect-ability of the various components in the system e.g. daemons such as namenode, jobtracker should expose their data-structures for query/manipulation etc. Tests would be much more relevant if we could for e.g. query for specific states of the jobtracker, scheduler etc. Clearly these apis should _not_ be part of the production clusters - hence the proposal is to use aspectj to weave these new apis to debug-deployments.
> ----
> Related note: we should break up our tests into at least 3 categories:
> # src/test/unit -> Real unit tests using mock objects (e.g. HDFS-669 & MAPREDUCE-1050).
> # src/test/integration -> Current junit tests with Mini* clusters etc.
> # src/test/system -> HADOOP-6332 and it's children

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