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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7211) Improve hbase ref guide for the testing part.
Date Wed, 12 Dec 2012 14:33:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13529986#comment-13529986

nkeywal commented on HBASE-7211:

I will commit Jeffrey's patch tomorrow if there is no objection.
> Improve hbase ref guide for the testing part.
> ---------------------------------------------
>                 Key: HBASE-7211
>                 URL: https://issues.apache.org/jira/browse/HBASE-7211
>             Project: HBase
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 0.96.0
>            Reporter: nkeywal
>            Assignee: nkeywal
>            Priority: Minor
>         Attachments: hbase-7211-partial.patch
> Here is some stuff I saw. I will propose a fix in a week or so, please add the comment
or issues you have in mind.
> ??15.6.1. Apache HBase Modules??
> => We should be able to use categories in all modules. The default should be small;
but any test manipulating the time needs to be in a specific jvm (hence medium), so it's not
always related to minicluster.
> ?? hbasetests.sh??
> => We can remove this chapter, and the script
>  The script is not totally useless, but I think nobody actually uses it.
> => Add a chapter on flakiness.
> Some tests are, unfortunately, flaky. While there number decreases, we still have some.
Rules are:
> - don't write flaky tests! :-)
> - small tests cannot be flaky, as it blocks other test execution. Corollary: if you have
an issue with a small test, it's either your environment either a severe issue.
> - rerun the test a few time to validate, check the ports and file descriptors used.
> ??mvn test -P localTests -Dtest=MyTest??
> => We could actually activate the localTests profile whenever -Dtest is used. If we
do that, we can remove the reference from localTests in the doc.
> ??mvn test -P runSmallTests?? ??mvn test -P runMediumTests??
> => I'm not sure it's actually used. We could remove them from the pom.xml (and the
> ??The HBase build uses a patched version of the maven surefire plugin?? 
> => Hopefully, we will be able to remove this soon :-)
>  ??Integration tests are described TODO: POINTER_TO_INTEGRATION_TEST_SECTION??
>  => Should be documented

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