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https://issues.apache.org/jira/browse/HDFS-4607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13605403#comment-13605403
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Chris Nauroth commented on HDFS-4607:
-------------------------------------
Hi, Ivan. This patch for fixing the newline issue looks good, but I found it
quite strange that {{TestGetConf#testFederation}} took so long. In fact, the
300s timeout used in this patch wasn't even sufficient time for me. On my
Windows VM, it takes more like 400s. When running on Mac, this test completes
in less than 1 second.
Digging into the issue, it appears to be a problem of slow response trying to
resolve an unknown host name. The test generates multiple bogus host names of
the form nn1, nn2, nn3, etc. Each call to {{TestGetConf#setupAddress}} ends up
iterating through each of 10 such addresses, ultimately calling
{{InetAddress#getByName}}. The same thing happens again later for each call to
{{TestGetConf#verifyAddresses}}. On Mac, this comes back nearly
instantaneously with host not found. On my Windows VM, each host name takes
~2.25s before responding with host not found. Simply running "ping nn1" on the
command prompt confirms this behavior. Do you know if we're experiencing a
Windows network misconfiguration?
If the solution isn't obvious, then I suggest that we remove the timeout from
{{testFederation}} for now and file a follow-up jira to address the test
sluggishness later.
> TestGetConf#testGetSpecificKey fails on Windows
> -----------------------------------------------
>
> Key: HDFS-4607
> URL: https://issues.apache.org/jira/browse/HDFS-4607
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Ivan Mitic
> Assignee: Ivan Mitic
> Attachments: HDFS-4607.patch
>
>
> Test fails on the below stack:
> {code}
> testGetSpecificKey(org.apache.hadoop.hdfs.tools.TestGetConf) Time elapsed:
> 37 sec <<< FAILURE!
> java.lang.AssertionError:
> at org.junit.Assert.fail(Assert.java:91)
> at org.junit.Assert.assertTrue(Assert.java:43)
> at org.junit.Assert.assertTrue(Assert.java:54)
> at
> org.apache.hadoop.hdfs.tools.TestGetConf.testGetSpecificKey(TestGetConf.java:341)
> {code}
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