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Posted to dev@lucene.apache.org by "Robert Muir (JIRA)" <ji...@apache.org> on 2015/03/06 04:31:38 UTC

[jira] [Updated] (LUCENE-6341) add CheckIndex -fast option

     [ https://issues.apache.org/jira/browse/LUCENE-6341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir updated LUCENE-6341:
--------------------------------
    Attachment: LUCENE-6341.patch

Here is an initial patch.

> add CheckIndex -fast option
> ---------------------------
>
>                 Key: LUCENE-6341
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6341
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Robert Muir
>         Attachments: LUCENE-6341.patch
>
>
> CheckIndex is great for testing and when tracking down lucene bugs. 
> But in cases where users just want to verify their index files are OK, it is very slow and expensive.
> I think we should add a -fast option, that only opens the reader and calls checkIntegrity(). This means all files are the correct files (identifiers match) and have the correct CRC32 checksums.
> For our 10M doc wikipedia index, this is the difference between a 2 second check and a 2 minute check.



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