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Posted to dev@tapestry.apache.org by "Howard M. Lewis Ship (JIRA)" <de...@tapestry.apache.org> on 2008/01/13 02:57:34 UTC
[jira] Closed: (TAPESTRY-2006) Replace naive page pool mechanism
with a more realistic one that can handle larger sites
[ https://issues.apache.org/jira/browse/TAPESTRY-2006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Howard M. Lewis Ship closed TAPESTRY-2006.
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Resolution: Fixed
Fix Version/s: 5.0.8
Let's see how well this works out in the field. I think is going to be a big win.
> Replace naive page pool mechanism with a more realistic one that can handle larger sites
> ----------------------------------------------------------------------------------------
>
> Key: TAPESTRY-2006
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2006
> Project: Tapestry
> Issue Type: New Feature
> Components: tapestry-core
> Affects Versions: 5.0.7
> Reporter: Howard M. Lewis Ship
> Assignee: Howard M. Lewis Ship
> Priority: Critical
> Fix For: 5.0.8
>
>
> The current page pooling mechanism is not very smart: pages are cached in memory forever, regardless of whether they are ever used, and a new page instance will be created any time a page is needed.
> A less naive implementation would limit the number of page instances.
> Page instances should be purged periodically, based on a LRU algorithm. The cutoff time should be configurable.
> The instance pool for a page/locale combination should track the number of created instances. There should be a hard and soft limit on the number of page instances; that is, track the number of page instances currently "in play". If the soft limit is exceeded, wait a short time (a few milliseconds, configurable) for an instance to become available, then create a fresh instance (unless the hard limit has been reached).
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