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From "Sergiy Savchenko" <>
Subject unsubscribe
Date Thu, 23 Aug 2007 16:02:09 GMT

-----Original Message-----
From: Adam Hurwitz - BIA [] 
Sent: Thursday, August 23, 2007 11:45 AM
Subject: unsubscribe


-----Original Message-----
From: Digy (JIRA) [] 
Sent: Thursday, August 23, 2007 11:11 AM
Subject: [jira] Commented: (LUCENENET-10) Supporting deleteDocuments in

ra.plugin.system.issuetabpanels:comment-tabpanel#action_12522169 ] 

Digy commented on LUCENENET-10:

With Lucene.Net v2.1, IndexWriter has DeleteDocuments method

> Supporting deleteDocuments in IndexWriter
> -----------------------------------------
>                 Key: LUCENENET-10
>                 URL:
>             Project: Lucene.Net
>          Issue Type: New Feature
>            Reporter: Nicolas Brel
>         Attachments: IndexWriter.patch
> Excerpt from the bug submited by Ning Li for Java Lucene: 
> Today, applications have to open/close an IndexWriter and open/close 
> an IndexReader directly or indirectly (via IndexModifier) in order to 
> handle a mix of inserts and deletes. This performs well when inserts 
> and deletes come in fairly large batches. However, the performance can

> degrade dramatically when inserts and deletes are interleaved in small
> This is because the ramDirectory is flushed to disk whenever an 
> IndexWriter is closed, causing a lot of small segments to be created 
> on disk, which eventually need to be merged.
> We would like to propose a small API change to eliminate this problem.

> We are aware that this kind change has come up in discusions before. 
> See
> ing=indexwriter%20delete;#23049

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