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From "Andy Isaacson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4042) send Cache-Control header on JSP pages
Date Thu, 11 Oct 2012 19:41:02 GMT
Andy Isaacson created HDFS-4042:

             Summary: send Cache-Control header on JSP pages
                 Key: HDFS-4042
                 URL: https://issues.apache.org/jira/browse/HDFS-4042
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node, name-node
    Affects Versions: 2.0.2-alpha
            Reporter: Andy Isaacson
            Priority: Minor

We should send a Cache-Control header on JSP pages so that HTTP/1.1 compliant caches can properly
manage cached data.

Currently our JSPs send:
% curl -v http://nn1:50070/dfshealth.jsp
< HTTP/1.1 200 OK
< Content-Type: text/html; charset=utf-8
< Expires: Thu, 01-Jan-1970 00:00:00 GMT
< Set-Cookie: JSESSIONID=xtblchjm7o7j1y1f33r0mpmqp;Path=/
< Content-Length: 3651
< Server: Jetty(6.1.26)

Based on a quick reading of RFC 2616 http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
I think we want to send {{Cache-Control: private, no-cache}} but I could be wrong.  The Jetty
docs http://docs.codehaus.org/display/JETTY/LastModifiedCacheControl indicate this is fairly

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