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Posted to dev@lucene.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2016/03/19 10:17:33 UTC
[jira] [Commented] (LUCENE-7113) OfflineSorter and BKD should
verify checksums in their temp files
[ https://issues.apache.org/jira/browse/LUCENE-7113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15202673#comment-15202673 ]
ASF subversion and git services commented on LUCENE-7113:
---------------------------------------------------------
Commit ef7a0125133597cea9e15ec011922f6d70a81b97 in lucene-solr's branch refs/heads/master from Mike McCandless
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=ef7a012 ]
LUCENE-7113: add best-effort checksum verification to temp files written by OfflineSorter and BKDWriter
> OfflineSorter and BKD should verify checksums in their temp files
> -----------------------------------------------------------------
>
> Key: LUCENE-7113
> URL: https://issues.apache.org/jira/browse/LUCENE-7113
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: master, 6.0
>
> Attachments: LUCENE-7113.patch, LUCENE-7113.patch
>
>
> I am trying to index all 3.2 B points from the latest OpenStreetMaps export.
> My SSDs were not up to this, so I added a spinning magnets disk to beast2.
> But then I was hitting scary bug-like exceptions ({{ArrayIndexOutOfBoundsException}}) when indexing the first 2B points, and I finally checked dmesg and saw that my hard drive is dying.
> I think it's important that our temp file usages also validate checksums (like we do for all our index files, either at reader open or at merge or {{CheckIndex}}), so we can hopefully easily differentiate a bit-flipping IO system from a possible Lucene bug, in the future.
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