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https://issues.apache.org/jira/browse/FELIX-2552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Meschberger resolved FELIX-2552.
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Resolution: Fixed
Added CachingPersistenceManagerProxy as a cache between the
ConfigurationManager using persistence managers and the actual
PersistenceManager services in Rev. 988929.
> Add caching PersistenceManager proxy
> ------------------------------------
>
> Key: FELIX-2552
> URL: https://issues.apache.org/jira/browse/FELIX-2552
> Project: Felix
> Issue Type: Improvement
> Components: Configuration Admin
> Affects Versions: configadmin-1.2.4
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Fix For: configadmin-1.2.8
>
>
> Each call to the ConfigurationAdmin.listConfigurations method causes a call
> to the PersistenceManager.getDictionaries() method. The current file-based
> implementation of this interface scans the configuration location and loads
> configuration files each time this method is called. Depending on the number
> of stored configurations, this may sum up to a considerable amount of time,
> In an inhouse implementation using Declarative Services (Apache Felix SCR
> 1.6.0) and Configuration Admin the use of
> ConfigurationAdmin.listConfigurations by the Declarative Services
> implementation increases system startup time considerably. With a simple
> caching layer ontop of the file-based PersistenceManager service we were able
> to cut down ca. 10s of a total system startup time of roughly 25s.
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