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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1584) Callback for intercepting merging segments in IndexWriter
Date Fri, 03 Apr 2009 10:38:12 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12695318#action_12695318
] 

Michael McCandless commented on LUCENE-1584:
--------------------------------------------

I think this can be achieved, today, by making your own MergeScheduler wrapper, or by subclassing
ConcurrentMergeScheduler and eg overriding the doMerge method?  If so, I'd prefer not to add
a callback to IW.

> Callback for intercepting merging segments in IndexWriter
> ---------------------------------------------------------
>
>                 Key: LUCENE-1584
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1584
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>    Affects Versions: 2.4.1
>            Reporter: Jason Rutherglen
>            Priority: Minor
>             Fix For: 2.9
>
>         Attachments: LUCENE-1584.patch
>
>   Original Estimate: 96h
>  Remaining Estimate: 96h
>
> For things like merging field caches or bitsets, it's useful to
> know which segments were merged to create a new segment.

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