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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10703) Duplicate filter instances are created during HttpServer2 initialization
Date Tue, 17 Jun 2014 19:55:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14034277#comment-14034277

Alejandro Abdelnur commented on HADOOP-10703:

By servlet spec it is expected that servlets/filters instances are not shared among webapps.
 If we want to respect that semantics the current behavior is correct, each context (webapp)
should have its own instance.

> Duplicate filter instances are created during HttpServer2 initialization
> ------------------------------------------------------------------------
>                 Key: HADOOP-10703
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10703
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.4.0
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>         Attachments: HADOOP-10703.patch, multiple-authenticationfilter-inits.log
> The HttpServer2.defineFilter creates a Filter instance for each context. By default,
there are 3 contexts.
> So there will be 3 separate AuthenticationFilter instances and corresponding AuthenticationHandler
instances. This also results in 3 separate initializations of AuthenticationHandler.
> The log file illustrating this repeated initialization is attached.

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