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From "David Sean Taylor (JIRA)" <jetspeed-...@portals.apache.org>
Subject [jira] [Created] (JS2-1325) Preferences Caching Performance Improvements
Date Fri, 01 May 2015 18:58:06 GMT
David Sean Taylor created JS2-1325:
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             Summary: Preferences Caching Performance Improvements
                 Key: JS2-1325
                 URL: https://issues.apache.org/jira/browse/JS2-1325
             Project: Jetspeed 2
          Issue Type: Improvement
          Components: Portlet Entities and Preferences
    Affects Versions: 2.3.0
            Reporter: David Sean Taylor
            Assignee: David Sean Taylor
             Fix For: 2.3.0


The Preferences Model uses a PUBLIC cache in the form of the Jetspeed cache in order to store
default preferences. (This works well except for the fact that Ehcache does not support negative
caching and therefore database calls which have no results end up falling through the cache
cycle.) The Preferences Model however does not leverage PRIVATE caching (users session) to
store user specific preferences and therefore the preferences are pulled back as required
resulting in some of the large volume of requests

Improvement:  preloading these preferences in the PRIVATE cache using a single call when the
user hits the page for the first time.




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