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From "Vikas Saurabh (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (OAK-4623) Log more information when null DocumentNodeState is read for a child while fetching children
Date Mon, 22 Aug 2016 08:52:20 GMT

     [ https://issues.apache.org/jira/browse/OAK-4623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vikas Saurabh resolved OAK-4623.
--------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 1.0.34)
                   1.5.9

Resolved at [r1757119|https://svn.apache.org/r1757119].

> Log more information when null DocumentNodeState is read for a child while fetching children
> --------------------------------------------------------------------------------------------
>
>                 Key: OAK-4623
>                 URL: https://issues.apache.org/jira/browse/OAK-4623
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: documentmk
>            Reporter: Vikas Saurabh
>            Assignee: Vikas Saurabh
>            Priority: Minor
>             Fix For: 1.6, 1.5.9
>
>
> {{DocumentNodeStore#getChildNodes}} validates node states of children in the returned
iterator and throws exception if a child is read as {{null}}.
> This is clearly an unexpected case (although, it has been observed in running systems).
The more probable cause for such a scenario would be to have inconsistent value in {{nodeChildrenCache}}.
It'd be useful to log more information about cache state to help investigating such cases.



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