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From "Mano Kovacs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-10114) Reordered delete-by-query can delete or omit child documents
Date Thu, 16 Feb 2017 18:13:41 GMT

    [ https://issues.apache.org/jira/browse/SOLR-10114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15870430#comment-15870430
] 

Mano Kovacs commented on SOLR-10114:
------------------------------------

[~steve_rowe], thanks for pointing it out. I just noticed that too locally. Its some interdependency
between the tests that I am trying to work out.

> Reordered delete-by-query can delete or omit child documents
> ------------------------------------------------------------
>
>                 Key: SOLR-10114
>                 URL: https://issues.apache.org/jira/browse/SOLR-10114
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: 4.5
>            Reporter: Yonik Seeley
>            Assignee: Yonik Seeley
>             Fix For: master (7.0)
>
>         Attachments: SOLR-10114-2.patch, SOLR-10114-2.patch, SOLR-10114.patch, SOLR-10114.patch,
SOLR-10114-test-cleanup.patch, SOLR-10114-validation.patch
>
>
> It looks like when a block of documents is indexed, child documents get no \_version\_
field.  This means (among other potential issues) that a delete-by-query that is reordered
will cause matching child documents to be deleted.  DBQ normally prevents deleting newer docs
by including a restriction on \_version\_, which doesn't work for anything lacking that field.
 Re-ordered delete-by-term of any child docs would also be affected (although it should be
a much rarer issue.)
> The leading candidate for a fix is to use the exact same \_version\_ for all child docs.



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