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https://issues.apache.org/jira/browse/HADOOP-6204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748553#action_12748553
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Konstantin Boudnik commented on HADOOP-6204:
--------------------------------------------
In order to avoid some massive ANT code duplication, I have sketched a solution
for this as follows:
- all FI logic is represented by a separate aop.xml file placed in build.aux
folder
- that aop.xml file is imported into build.xml
- to make FI framework project independent I've renamed FI related targets to
{{run-test-primary-fault-inject}}. {{run-test-secondary-fault-inject}},
{{jar-fault-inject}}, and {{jar-test-fault-inject}}
- project specific build.properties should contains actual target to be
executed by aforementioned generic names.
Now, build.aux can be pulled from Common through svn:externals and then
everything will be working in a very similar way. The above solution has 2
issues in my opinion:
- an indirection level is being added. One way to avoid the abstraction is to
define a number of macros in the aop.xml file and parametrize them from
build.xml. It might be better approach.
- svn:externals aren't universally acceptable. E.g. if one wants to pull SVN
repository into a git one, then externals are have to be processed as a special
case.
I'd appreciate if anyone has any comment or preferences on this.
> Implementing aspects development and fault injeciton framework for Hadoop
> -------------------------------------------------------------------------
>
> Key: HADOOP-6204
> URL: https://issues.apache.org/jira/browse/HADOOP-6204
> Project: Hadoop Common
> Issue Type: Improvement
> Components: build, test
> Reporter: Konstantin Boudnik
> Assignee: Konstantin Boudnik
>
> Fault injection framework implementation in HDFS (HDFS-435) turns out to be a
> very useful feature both for error handling testing and for various
> simulations.
> There's certain demand for this framework, thus it need to be pulled up from
> HDFS and brought into Common, so other sub-projects will be able to share it
> if needed.
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