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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6332) Large-scale Automated Test Framework
Date Tue, 04 May 2010 01:56:05 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

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

    Attachment: 6332-phase2.patch

This is the second portion of main Herriot functionality including some of the tests already
linked to the JIRA.

This patch isn't for commit to the Apache 0.20 branch, but is the reference material for coming
forward port to the trunk (0.22). During the forward port process the tests (about 7 of them
or so) from this patch will be taken out and finally replaced with the patches attached to
the linked JIRAs.

> 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
>            Reporter: Arun C Murthy
>            Assignee: Sharad Agarwal
>             Fix For: 0.21.0
>
>         Attachments: 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.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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