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https://issues.apache.org/jira/browse/HDFS-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13065497#comment-13065497
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Todd Lipcon commented on HDFS-2136:
-----------------------------------
bq. Do you have any hard data to back this? I would love to see how much slower
an FI based test is compared to non-FI one?
I can run a non-FI test in eclipse in <0.2seconds for a true unit test. Maybe
I'm just dense at Eclipse (you know this is true ;-) ) but I don't know of any
way to run a test with aspects woven inside Eclipse nearly that fast. From the
command line, if I want to run a single AOP test, it takes 1m12s from starting
ant to actually executing an FI test (this is _without_ ant clean first). In
comparison it taks about 15s to get to a non-AOP test.
> 1073: Fault injection for StorageDirectory failures during read/write of
> FSImage/Edits files
> --------------------------------------------------------------------------------------------
>
> Key: HDFS-2136
> URL: https://issues.apache.org/jira/browse/HDFS-2136
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Matt Foley
>
> Both HDFS-1955 and HDFS-2135 have observed that it is difficult to unit test
> such failures. As a result, regression of HDFS-1955 was only found by
> careful manual review (thanks, atm!). Since 1073 is making broad changes to
> the way these files are read and written, and appropriately putting effort
> into correct error handling, I propose we make also make it possible to
> auto-test that error handling.
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