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http://jira.amdatu.org/jira/browse/AMDATU-605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bram de Kruijff resolved AMDATU-605.
------------------------------------
Assignee: Jan Willem Janssen (was: Bram de Kruijff)
Resolution: Fixed
Done. Note that I adopted the old fsstorage library code, but did not do any
additional optimizations (yet) as requested in AMDATU-531. Please review!
> Replace useradmin preferences based storage provider with custom fsstorage
> --------------------------------------------------------------------------
>
> Key: AMDATU-605
> URL: http://jira.amdatu.org/jira/browse/AMDATU-605
> Project: Amdatu
> Issue Type: Improvement
> Reporter: Jan Willem Janssen
> Assignee: Jan Willem Janssen
> Fix For: 0.4.0, Sprint 10
>
>
> The current UserAdmin storage approach (PAX UserAdmin -> PAX UserAdmin
> Provider Preferences -> Felix Preferences) has severe performance and
> concurrency issues. It is very slow due to heavy synchronization over IO
> intensive operation (node.children -> sync()). The concurrency seems to be
> the result of not synchronizing on the default storage service level while
> the Preferences itself uses a ServiceFactory approach.
> Therefore we have decided to reintroduce a custom fsstorage provider for now.
> It is much faster and can be optimized freely (eg. with caching). This boils
> down to:
> 1) create new artifacts
> amdatu-useradmin/pax-useradmin-fsstorage
> amdatu-useradmin/multitenant-pax-useradmin-fsstorage
> 2) switching all to the new impl
> 3) Introduce an initial benchmark itest
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