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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4762) repair test org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal
Date Thu, 01 Nov 2012 15:19:13 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13488750#comment-13488750
] 

Daryn Sharp commented on MAPREDUCE-4762:
----------------------------------------

Be very careful because I seem to remember a problem caused by the tests registering the custom
token renewer.  The believe the test jar is by default in the CLASSPATH, so deploys will load
the custom renewer and cause problems.
                
> repair test org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal
> ---------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4762
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4762
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Ivan A. Veselovsky
>
> The test org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal is @Ignor-ed.

> Due to that several classes in package org.apache.hadoop.mapreduce.security.token have
zero unit-test coverage.
> The problem is that the test assumed that class org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal.Renewer
is used as a custom implementation of the org.apache.hadoop.security.token.TokenRenewer service,
but that did not happen, because this custom service implementation was not registered. 
> We solved this problem by using special classloader that is invoked to find the resource
META-INF/services/org.apache.hadoop.security.token.TokenRenewer , and supplies some custom
content for it. This way the custom service implementation gets instantiated.

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