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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2007/03/23 20:59:32 UTC

[jira] Commented: (LUCENE-846) IOExeception can cause loss of data due to premature segment deletion

    [ https://issues.apache.org/jira/browse/LUCENE-846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12483725 ] 

Michael McCandless commented on LUCENE-846:
-------------------------------------------

Hmmm, this does not sound good!  I'll apply the patch and track it down.

> IOExeception can cause loss of data due to premature segment deletion
> ---------------------------------------------------------------------
>
>                 Key: LUCENE-846
>                 URL: https://issues.apache.org/jira/browse/LUCENE-846
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>            Reporter: Steven Parkes
>
> If you hit an IOException, e.g., disk full, while making a cfs from its constituent parts, you may not be able to rollback to the before-merge process. This happens via addIndexes.
> I don't have a nice easy test for this; generating IOEs ain't so easy. But it does happen in the patch for the factored merge policy with the existing tests because the pseudo-randomly generated IOEs fall in a different place.

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