[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15741984#comment-15741984
]
Steve Loughran commented on HADOOP-12476:
-
I wonder if there's a way to detect this setup (e.g. bind9 running), or at
least fail with a message about the topic
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 2.8.0, 3.0.0-alpha1
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>Priority: Minor
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15741978#comment-15741978
]
Steve Loughran commented on HADOOP-12476:
-
what system/network setup do you have?
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0-alpha1
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15732277#comment-15732277
]
Ewan Higgs commented on HADOOP-12476:
-
I think I found the issue. My Ubuntu box is/was running bind9 so it can resolve
it's own dns requests. When we pretend that we can't hit a dns server, things
are still getting resolved anyway.
OS X seems to be working, so maybe ignore what I said before about that.
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0-alpha1
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15732239#comment-15732239
]
Ewan Higgs commented on HADOOP-12476:
-
{quote}However I am not sure why it fails at all. Wei-Chiu Chuang, have you
seen it fail outside of Jenkins?{quote}
This fails for me outside Jenkins.
I'm running this on two machines: Ubuntu 16.10 and OS X El Capitan. It fails on
Oracle 8 and OpenJDK 8.
It also fails on trunk and branch-2.8. (branch-2.7 doesn't have the same test).
I also checked out the first commit with the test (df31c446) and it failed
(pointing java to 8 or 7).
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0-alpha1
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957525#comment-14957525
]
Arpit Agarwal commented on HADOOP-12476:
Thanks for confirming that.
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957494#comment-14957494
]
Wei-Chiu Chuang commented on HADOOP-12476:
--
No I can't. I ran this test case repeatedly for 100 times on my local Linux
machine and couldn't reproduce the failure at all. Maybe it's caused by the
configuration at the jenkins machine?
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957236#comment-14957236
]
Arpit Agarwal commented on HADOOP-12476:
I could not think of a practical alternative to reflection for this test case
without significantly refactoring {{DNS}}. It's dependencies on DNS lookups and
networking are not well isolated and make unit testing difficult.
However I am not sure why it fails at all. [~jojochuang], have you seen it fail
outside of Jenkins?
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14956925#comment-14956925
]
Steve Loughran commented on HADOOP-12476:
-
# This is unrelated to HADOOP-12449; that patch didn't touch the test case that
is now failing.
# It surfaced (transiently) in a patch submission for
[HADOOP-10775|https://issues.apache.org/jira/browse/HADOOP-10775?focusedCommentId=14949090&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14949090]
The implication is that this is a transient, or that it's specific to one of
the build machines/JVMs
Looking at the code it is playing reflection games; that doesn't help...some
package-scoped modifier would be cleaner.
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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[jira] [Commented] (HADOOP-12476) TestDNS.testLookupWithoutHostsFallback failing
[
https://issues.apache.org/jira/browse/HADOOP-12476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14956910#comment-14956910
]
Wei-Chiu Chuang commented on HADOOP-12476:
--
This test has been failing since at least September 28.
> TestDNS.testLookupWithoutHostsFallback failing
> --
>
> Key: HADOOP-12476
> URL: https://issues.apache.org/jira/browse/HADOOP-12476
> Project: Hadoop Common
> Issue Type: Bug
> Components: net, test
>Affects Versions: 3.0.0
> Environment: Jenkins
>Reporter: Steve Loughran
>Assignee: Steve Loughran
>
> Presumably triggered by HADOOP-12449, one of the jenkins patch runs has
> failed in {{TestDNS.testLookupWithoutHostsFallback}},
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