[infinispan-issues] [JBoss JIRA] (ISPN-3318) Migrate data from one cache store to another

[Mircea Markus (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-3318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12792915#comment-12792915 ] 

Mircea Markus commented on ISPN-3318:
-------------------------------------

{quote} Mircea, Randall's suggestion is compatible with what you're saying. The idea is that anyone that would use the FCS with Infinispan 6.0+, if FCS would be able to detect old FCS data structure, it could migrate it on the fly to the new single file based structure.{quote}
fair point. The new SFCS implementation has a particularity though: keeps all the keys in memory. This might have an impact on the system that uses it, so if you go this way it might still make sense to have an explicit param to enable migration so that existing users ack the change.
Personally I'm still biased towards the migration tool: I don't like the tools that are too sharp and explicit migration is not something people wouldn't expect in this situation. 
                
> Migrate data from one cache store to another
> --------------------------------------------
>
>                 Key: ISPN-3318
>                 URL: https://issues.jboss.org/browse/ISPN-3318
>             Project: Infinispan
>          Issue Type: Task
>          Components: Loaders and Stores
>            Reporter: Galder Zamarreño
>            Assignee: Galder Zamarreño
>             Fix For: 6.0.0.Final
>
>
> Find a generic way to transfer data from one cache store to another, which could involve different Infinispan versions. This is handy to migrate file cache store based users to single file cache store (ISPN-2806).
> Ideally, this should be added as a recipe for rolling upgrades.

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