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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11302) Improve Logging for SSLHostnameVerifier
Date Fri, 06 Jan 2017 23:36:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15806156#comment-15806156

Mingliang Liu commented on HDFS-11302:

According to the pain in one of our support cases, I strongly +1 on this proposal. Thanks

> Improve Logging for SSLHostnameVerifier
> ---------------------------------------
>                 Key: HDFS-11302
>                 URL: https://issues.apache.org/jira/browse/HDFS-11302
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: security
>            Reporter: Xiaoyu Yao
>            Assignee: Chen Liang
>            Priority: Minor
> SSLHostnameVerifier interface/class was copied from other projects without any logging
to help troubleshooting SSL certificate related issues. For a misconfigured SSL truststore,
we may get some very confusing error message like
> {code}
> >hdfs dfs -cat swebhdfs://NNl/tmp/test1.txt
> ...
> cause:java.io.IOException: DN2:50475: HTTPS hostname wrong:  should be <DN2>
> cat: DN2:50475: HTTPS hostname wrong:  should be <DN2>
> {code}
> This ticket is opened to add tracing to give more useful context information around SSL
certificate verification failures inside the following code.
> {code}AbstractVerifier#check(String[] host, X509Certificate cert) {code}

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