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From "Julian Reschke (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OAK-8264) RDBDocumentStore: docs obtained from cache may need revalidation before returned to caller
Date Wed, 24 Apr 2019 11:44:00 GMT

     [ https://issues.apache.org/jira/browse/OAK-8264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Julian Reschke updated OAK-8264:
--------------------------------
    Attachment: OAK-8264.diff

> RDBDocumentStore: docs obtained from cache may need revalidation before returned to caller
> ------------------------------------------------------------------------------------------
>
>                 Key: OAK-8264
>                 URL: https://issues.apache.org/jira/browse/OAK-8264
>             Project: Jackrabbit Oak
>          Issue Type: Technical task
>          Components: rdbmk
>            Reporter: Julian Reschke
>            Assignee: Julian Reschke
>            Priority: Major
>         Attachments: OAK-8264.diff
>
>
> The cache internally invalidates documents by setting the {{lastCheckTime}} to 0. When
a document like that is returned from the cache, it needs to be rechecked in the persistence.
This currently happens for {{find()}}, but not for {{getIfCached()}} or internal methods such
as {{readDocumentsCached()}}. This may cause unneeded JDBC roundtrips when a document like
that indeed changed in the meantime and needs to be updated in the database.



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