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https://issues.apache.org/jira/browse/HDFS-8509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15147288#comment-15147288
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Steve Loughran commented on HDFS-8509:
--------------------------------------

Wellington,

Updating versions of things is something we are always scared of: something 
else breaks. I don't think anyone wants to stay on tomcat 6; there's been a 
JIRAs for moving off it for a while.

# we can/should do this for trunk
# I don't know about the branch-2 line
# you need to submit the same patch as a diff for Hadoop core (stick it under 
HADOOP-10076 with that retitled for "tomcat 8"); that will make the patch 
visible to more than just the HDFS team: which is essential here.
# you'll probably have to explain/justify some of the web.xml changes, e.g. why 
different valves, why the hard coded 150 for thread count, etc, etc

> Move to tomcat 8.0.21 to support different passwords for key and keystore on 
> HTTPFS using SSL
> ---------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8509
>                 URL: https://issues.apache.org/jira/browse/HDFS-8509
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: build, webhdfs
>    Affects Versions: 2.7.0
>            Reporter: Wellington Chevreuil
>            Assignee: Wellington Chevreuil
>            Priority: Minor
>         Attachments: HDFS-8509.patch
>
>
> Currently, SSL for HTTPFS requires that keystore/truststore and key passwords 
> be the same. This is a limitation from Tomcat version 6, which didn't have 
> support for different passwords. From Tomcat 7, this is now possible by 
> defining "keyPass" property for "Connector" configuration on Tomcat's 
> server.xml file.



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