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From "Jason Rutherglen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2655) Get deletes working in the realtime branch
Date Wed, 13 Oct 2010 15:26:35 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12920606#action_12920606
] 

Jason Rutherglen commented on LUCENE-2655:
------------------------------------------

If there are 2 DWPTs, and each has a the following pending deletes:

DWPT #1 maxdoc: 50; term id:1 limit:25

DWPT #2 maxdoc: 45; term id:1 limit:30

Where limit is the docid-upto stored as an int value in the pending deletes map.  If we flush
one of these DWPTs without first applying the deletes to a bitvector, and we flush the DWPTs
in order, then DWPT #1 would flush the deletes, the term doc limit would be reset to segmentinfos
maxdoc + 25.  However there' a 50 - 25 = 25 gap.  When DWPT #2 is flushed, the limit for term
id:1 is set to segmentinfos maxdoc + 50 + 30.  eg, we're effectively losing DWPT #1s limit
(26 - 50)?

> Get deletes working in the realtime branch
> ------------------------------------------
>
>                 Key: LUCENE-2655
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2655
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>    Affects Versions: Realtime Branch
>            Reporter: Jason Rutherglen
>             Fix For: Realtime Branch
>
>         Attachments: LUCENE-2655.patch
>
>
> Deletes don't work anymore, a patch here will fix this.

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