[jira] [Updated] (OAK-3494) MemoryDiffCache should also check parent paths before falling to Loader (or returning null)

["Vikas Saurabh (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OAK-3494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vikas Saurabh updated OAK-3494:
-------------------------------
    Attachment: OAK-3494-TestCase.patch

Attaching [patch|^OAK-3494-TestCase.patch] for ignored test case.

> MemoryDiffCache should also check parent paths before falling to Loader (or returning null)
> -------------------------------------------------------------------------------------------
>
>                 Key: OAK-3494
>                 URL: https://issues.apache.org/jira/browse/OAK-3494
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core
>            Reporter: Vikas Saurabh
>              Labels: performance
>         Attachments: OAK-3494-TestCase.patch
>
>
> Each entry in {{MemoryDiffCache}} is keyed with {{(path, fromRev, toRev)}} for the list of modified children at {{path}}. A diff calcualted by {{DocumentNodeStore.diffImpl}} at '/' (passively via loader) or {{JournalEntry.applyTo}} (actively) fill each path for which there are modified children (including the hierarchy)
> But, if an observer calls {{compareWithBaseState}} on a unmodified sub-tree, the observer will still go down to {{diffImpl}} although cached parent entry can be used to answer the query.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)