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http://jira.dspace.org/jira/browse/DS-298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=11289#action_11289
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Mark Diggory commented on DS-298:
---------------------------------
TBH, I'm not convinced that our caching content in cocoon is of any real
benefit. The real cost is in the database queries to construct the DSpace
objects, which need to be constructed to validate the cache in the first place.
Ultimately, with User logins and reconstructing the UI Navigation across all
the aspects, there is actually very little content in the UI that can be cached
across requests. If all we are talking about for rendering the content section
of a page is constructing a sax stream off the object already in memory from
the validation stage.
In recent projects, I've taken to disabling Cocoon Cache entirely across the
ArtifactBrowser aspect to remedy this problem. This said, caching inside the
Service layer would be far more effective at holding onto results/object
constructed off the Database across requests. And this is where the real win in
caching would come from, no matter what the UI rendering solution.
> Caching problem when users logout
> ---------------------------------
>
> Key: DS-298
> URL: http://jira.dspace.org/jira/browse/DS-298
> Project: DSpace 1.x
> Issue Type: Bug
> Components: XMLUI
> Affects Versions: 1.5.2, 1.6.0
> Reporter: Flávio Botelho
> Priority: Minor
>
> When the user logs out, cocoon is still responding with a 304 (The session is
> fine as new pages are being correctly responded without the menu).
> But pages already seen while logged keep the menu. (This is already working
> when the user logs in, only not when he logs out).
> Typical response after i log out:
> http://bdjur/xmlui/handle/2011/17962
> GET /xmlui/handle/2011/17962 HTTP/1.1
> Host: bdjur
> User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.11)
> Gecko/2009061212 Iceweasel/3.0.6 (Debian-3.0.6-1)
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: pt-br,en-us;q=0.7,en;q=0.3
> Accept-Encoding: gzip,deflate
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Keep-Alive: 300
> Connection: keep-alive
> Referer: http://bdjur/xmlui/handle/2011/17962
> Cookie: JSESSIONID=C2477EAD309363964814919D753C13E3
> If-Modified-Since: Tue, 01 Sep 2009 22:14:51 GMT
> Cache-Control: max-age=0
> HTTP/1.x 304 Not Modified
> Date: Tue, 01 Sep 2009 23:18:38 GMT
> Connection: Keep-Alive
> Keep-Alive: timeout=5, max=100
> Vary: User-Agent
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