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Posted to oak-issues@jackrabbit.apache.org by "Julian Reschke (JIRA)" <ji...@apache.org> on 2015/04/28 15:50:07 UTC

[jira] [Commented] (OAK-2191) Persistent cache for the DocumentNodeStore

    [ https://issues.apache.org/jira/browse/OAK-2191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14517039#comment-14517039 ] 

Julian Reschke commented on OAK-2191:
-------------------------------------

Looking at the code in DocumentMK, it seems that the PersistentCache is used for the MongoBlobStore, but not the RDBBlobStore. Is this intentional???

> Persistent cache for the DocumentNodeStore
> ------------------------------------------
>
>                 Key: OAK-2191
>                 URL: https://issues.apache.org/jira/browse/OAK-2191
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: core, mongomk, rdbmk
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>             Fix For: 1.0.8, 1.1.2
>
>         Attachments: OAK-2191-branch_1_0.patch
>
>
> When using the DocumentNodeStore, data is read from a remote system (MongoDB or RDBMS), which is typically relatively slow. There is an in-memory cache, but this cache doesn't help much for startup.
> We should investigate whether a persistent cache would help.



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