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https://issues.apache.org/jira/browse/LUCENE-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simon Willnauer resolved LUCENE-4629.
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Resolution: Fixed
Lucene Fields: New,Patch Available (was: New)
> IndexWriter fails to delete documents if Iterator<IndexDocument> throws an
> exception
> ------------------------------------------------------------------------------------
>
> Key: LUCENE-4629
> URL: https://issues.apache.org/jira/browse/LUCENE-4629
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Simon Willnauer
> Fix For: 4.1, 5.0
>
> Attachments: LUCENE-4629.patch
>
>
> In DWPT we iterator over a document block and roll back documents if one of
> the docs fails with a non-aborting exception. Yet, we miss to delete those
> document if the iterator itself throws an exception. Given the fact that we
> allow an Iterable on IW we should be prepared for RT exceptions since these
> documents might be created in a stream fashing rather than already build up.
> IMO its a valid usecase if you have large documents to not materialize them
> in memory before indexing or at least we don't require this.
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