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https://issues.apache.org/jira/browse/OAK-9116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17136799#comment-17136799
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Thomas Mueller commented on OAK-9116:
-------------------------------------
PR for illustration: https://github.com/oak-indexing/jackrabbit-oak/pull/198
(untested).
> Datastore: read-only cache that uses a key-value store
> ------------------------------------------------------
>
> Key: OAK-9116
> URL: https://issues.apache.org/jira/browse/OAK-9116
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: blob
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Priority: Major
>
> For data stores that are large and contain a lot of small entries, the
> overhead of the current file cache is quite large: at least one file per
> entry is needed. For most file systems, that means 4 KB per entry. If entries
> are much smaller (e.g. 30 bytes), the overhead is large.
> We could instead use a read-only key-value store for such entries.
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