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https://issues.apache.org/jira/browse/HADOOP-6083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721613#action_12721613
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Jakob Homan commented on HADOOP-6083:
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bq. Surprisingly, the min is 126.07, which is outside 3sd. If we assume normal
distribution, the probability of getting it is < 0.003 but you got it in 1/16.
What makes it running so fast?
I messed up the chart, but the standard deviation for the test is high in
general.
> TestFsck takes nearly 10 minutes to run - a quarter of the entire hdfs-test
> time
> --------------------------------------------------------------------------------
>
> Key: HADOOP-6083
> URL: https://issues.apache.org/jira/browse/HADOOP-6083
> Project: Hadoop Core
> Issue Type: Improvement
> Components: test
> Reporter: Jakob Homan
>
> run-test-hdfs was run repeatedly (n = 16) and the execution time of each test
> was recorded. Testfsck was by far the longest test, with a median run time
> of 564 seconds, nearly 10 minutes. This is a quarter of the entire time
> spent over the average 40 minute run for all the tests, and much too long for
> any individual test.
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