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https://issues.apache.org/jira/browse/LUCENE-2960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13005305#comment-13005305
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Michael McCandless commented on LUCENE-2960:
--------------------------------------------
If you call IWC.setRAMBufferSizeMB even after the IW is init'd, this *almost*
works; I think the only problem is that DocumentsWriter has a private copy of
the RAM buffer size. We can simply fix that (it can pull from config, too),
and then re-enable the test we used to have that asserts that live changes to
the RAM buffer take effect.
> Allow (or bring back) the ability to setRAMBufferSizeMB on an open IndexWriter
> ------------------------------------------------------------------------------
>
> Key: LUCENE-2960
> URL: https://issues.apache.org/jira/browse/LUCENE-2960
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Reporter: Shay Banon
> Priority: Blocker
> Fix For: 3.1, 4.0
>
>
> In 3.1 the ability to setRAMBufferSizeMB is deprecated, and removed in trunk.
> It would be great to be able to control that on a live IndexWriter. Other
> possible two methods that would be great to bring back are
> setTermIndexInterval and setReaderTermsIndexDivisor. Most of the other
> setters can actually be set on the MergePolicy itself, so no need for setters
> for those (I think).
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