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https://issues.apache.org/jira/browse/HADOOP-16524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17326655#comment-17326655
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Borislav Iordanov commented on HADOOP-16524:
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hi [~ayushtkn] , [~stack] thanks for the instruction. I was able to reproduce
the failure with your instructions. The issue is that it fails to load a
configuration file (ssl-server.xml) and as a consequence the location of the
SSL keystore is null. After playing with various options, I came to the
conclusion that the failure happens only when the yarn-ui profile is enabled,
but I couldn't figure out why that affects it. The file ssl-server.xml is
expected to be under test-classes directly, but what we find there instead is a
file named ssl-server-fork-1.xml, probably has to do with Maven fork options
and parallel tests
([https://maven.apache.org/surefire/maven-surefire-plugin/examples/fork-options-and-parallel-execution.html),]
but I'm familiar with that to troubleshoot.
However - the problem appears fixed on the latest commit on trunk and I'm only
reproduce on the commit hash that I found from your link above. On the latest
trunk, we have test-classes/ssl-server.xml so the file is found. So I'm
guessing there were configuration changes that fixed it.
What I could do is create a PR with a more helpful error that says "No keystore
configured for HTTPS" or some such?
> Automatic keystore reloading for HttpServer2
> --------------------------------------------
>
> Key: HADOOP-16524
> URL: https://issues.apache.org/jira/browse/HADOOP-16524
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Kihwal Lee
> Assignee: Borislav Iordanov
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.3.1, 3.4.0
>
> Attachments: HADOOP-16524.patch
>
> Time Spent: 5h 50m
> Remaining Estimate: 0h
>
> Jetty 9 simplified reloading of keystore. This allows hadoop daemon's SSL
> cert to be updated in place without having to restart the service.
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