[infinispan-issues] [JBoss JIRA] Commented: (ISPN-688) Data preloaded from a CacheStore is immediately stored in the CacheStore again

[Sanne Grinovero (JIRA)]

    [ https://jira.jboss.org/browse/ISPN-688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12555529#action_12555529 ] 

Sanne Grinovero commented on ISPN-688:
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I don't think I need a different API, as Infinispan should be able to figure out what it optimal to do according to state and configuration.
Maybe a boolean could be added to the cacheentry, to track if the value is already present in the store or not. This will also avoid re-storing the values again after a rehash, which is another problem I had in the past and really slows down rehashing as it relies on the CacheStore peroformance.
I'm really talking about the shared cache stores only, so I'm not sure how this could be applied to the store-per-node use case.

> Data preloaded from a CacheStore is immediately stored in the CacheStore again
> ------------------------------------------------------------------------------
>
>                 Key: ISPN-688
>                 URL: https://jira.jboss.org/browse/ISPN-688
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Loaders and Stores
>    Affects Versions: 4.0.0.Final, 4.1.0.Final, 4.2.0.ALPHA2
>            Reporter: Sanne Grinovero
>            Assignee: Mircea Markus
>            Priority: Minor
>             Fix For: 4.2.0.BETA1, 4.2.0.Final, 5.0.0.BETA1, 5.0.0.Final
>
>
> When enabling logging on the CacheStore, which is being used with preload=true, I can clearly see that during the preload operation each value is read from the store and immediately after that stored again.
> This is quite a performance hit in application loading, as the whole store is written again without this being needed.

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