[jira] [Updated] (LUCENE-7581) IndexWriter#updateDocValues can break index sorting

["Ferenczi Jim (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-7581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ferenczi Jim updated LUCENE-7581:
---------------------------------
    Attachment: LUCENE-7581.patch

I attached a patch that fails the test if a second round of DV updates are run.

> IndexWriter#updateDocValues can break index sorting
> ---------------------------------------------------
>
>                 Key: LUCENE-7581
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7581
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Ferenczi Jim
>         Attachments: LUCENE-7581.patch
>
>
> IndexWriter#updateDocValues can break index sorting if it is called on a field that is used in the index sorting specification. 
> TestIndexSorting has a test for this case: #testConcurrentDVUpdates 
> but only L1 merge are checked. Any LN merge would fail the test because the inner sort of the segment is not re-compute during/after DV updates.



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