[jira] Updated: (LUCENE-938) I/O exceptions can cause loss of buffered deletes

["Steven Parkes (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Parkes updated LUCENE-938:
---------------------------------

    Attachment: LUCENE-938.txt

Patch that fixes the two relevant rollback mechanisms in IndexWriter: the rollback support in mergeSegments around maybeApplyDeletes and the rollback support in  the *Transaction methods. For the later, I had to promote the transaction routines from private to package protected so that I could write the tests, which are also in the patch.

> I/O exceptions can cause loss of buffered deletes
> -------------------------------------------------
>
>                 Key: LUCENE-938
>                 URL: https://issues.apache.org/jira/browse/LUCENE-938
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 2.3
>            Reporter: Steven Parkes
>            Assignee: Steven Parkes
>             Fix For: 2.3
>
>         Attachments: LUCENE-938.txt
>
>
> Some I/O exceptions that result in segmentInfos rollback operations can cause buffered deletes that existed before the rollback creation point to be incorrectly lost when the IOException triggers a rollback.

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