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From Tomek Rękawek (JIRA) <j...@apache.org>
Subject [jira] [Updated] (OAK-7744) Persistent cache for the Segment Node Store
Date Tue, 11 Sep 2018 11:29:00 GMT

     [ https://issues.apache.org/jira/browse/OAK-7744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tomek Rękawek updated OAK-7744:
    Attachment:     (was: OAK-7744.patch)

> Persistent cache for the Segment Node Store
> -------------------------------------------
>                 Key: OAK-7744
>                 URL: https://issues.apache.org/jira/browse/OAK-7744
>             Project: Jackrabbit Oak
>          Issue Type: Story
>          Components: segment-tar
>            Reporter: Tomek Rękawek
>            Priority: Major
>             Fix For: 1.10
>         Attachments: OAK-7744.patch
> With the introduction of custom, remote persistence mechanisms for the SegmentMK (namely
the Azure Segment Store), it makes sense to create another level of cache, apart from the
on-heap segment cache which is currently used.
> Let's implement the persistent cache, using the existing {{TarFiles}} class and storing
the processed segments on disk. It may be created as a pass-through {{SegmentNodeStorePersistence}}
implementation, so it can be composed with other existing persistence implementations, eg.
[split persistence|OAK-7735].

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