Andy Isaacson created HDFS-4042:
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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:
{noformat}
% 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)
{noformat}
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 straightforward.
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