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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4472) Add setting that prevents merging on updateDocument
Date Tue, 16 Oct 2012 05:15:03 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13476753#comment-13476753
] 

Robert Muir commented on LUCENE-4472:
-------------------------------------

I like this patch much better than the first one.

As far as back compat, I'm not sure if we should try to do anything tricky, the current patch
isn't really a break
it just allows MP to handle this stuff at a more fine-grained level, I think its fine.

p.s. UNKOWN and EMPTY_FOCED_SEGMENTS look like typos :)

                
> Add setting that prevents merging on updateDocument
> ---------------------------------------------------
>
>                 Key: LUCENE-4472
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4472
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/index
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>             Fix For: 4.1, 5.0
>
>         Attachments: LUCENE-4472.patch, LUCENE-4472.patch
>
>
> Currently we always call maybeMerge if a segment was flushed after updateDocument. Some
apps and in particular ElasticSearch uses some hacky workarounds to disable that ie for merge
throttling. It should be easier to enable this kind of behavior. 

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