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From "Uma Maheswara Rao G (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7688) When a servlet filter throws an exception in init(..), the Jetty server failed silently.
Date Wed, 02 Nov 2011 12:53:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142105#comment-13142105

Uma Maheswara Rao G commented on HADOOP-7688:

Thanks Nicholas for taking a look!

 Did you see my first comment? 
Handler[] handlers = webServer.getHandlers();
    for (int i = 0; i < handlers.length; i++) {
      if(false == handlers[i].isRunning()){
        throw new IOException("Problem starting http server");
Since we can access the webServer directly, why con't we check the handlers (see the code
snippet above).
 Http server will set the contextHandlers to Server.

final String appDir = getWebAppsPath();
    ContextHandlerCollection contexts = new ContextHandlerCollection();

 So, if any of the Filter init fails, the corresponding context will fail to start.
Are you seeing any issue with this?

With your proposed one, we need to create HTTPConnection explicitely and check.


> When a servlet filter throws an exception in init(..), the Jetty server failed silently.

> -----------------------------------------------------------------------------------------
>                 Key: HADOOP-7688
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7688
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Uma Maheswara Rao G
>         Attachments: filter-init-exception-test.patch, org.apache.hadoop.http.TestServletFilter-output.txt
> When a servlet filter throws a ServletException in init(..), the exception is logged
by Jetty but not re-throws to the caller.  As a result, the Jetty server failed silently.

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