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https://issues.apache.org/jira/browse/HADOOP-3854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12619739#action_12619739
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Tsz Wo (Nicholas), SZE commented on HADOOP-3854:
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Filters support universal functions. Logging and authentication are just
examples of them. See http://java.sun.com/products/servlet/Filters.html for
more filter use cases.
Even for logging and authentication, site administrators may want to monitor
the entire web site (not only hadoop web pages) uniformly. Some organizations
might have their own logging database and authentication service. They might
want to log information according to their site policy. They might already
have a single sign-on system on their web site and they don't want Hadoop web
pages to have special login page.
> org.apache.hadoop.http.HttpServer should support user configurable filter
> -------------------------------------------------------------------------
>
> Key: HADOOP-3854
> URL: https://issues.apache.org/jira/browse/HADOOP-3854
> Project: Hadoop Core
> Issue Type: New Feature
> Reporter: Tsz Wo (Nicholas), SZE
> Attachments: 3854_20080729.patch, 3854_20080730.patch,
> LoggingFilter.java, SampleInitializer.java
>
>
> Filters provide universal functions such as authentication, logging and
> auditing, etc. HttpServer should support configurable filters, so that
> individual site administrators could possibly configure filters for their web
> site.
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