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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2007/08/03 20:49:53 UTC
[jira] Resolved: (LUCENE-948) Writers on two machines over NFS can
hit FNFE due to stale NFS client caching
[ https://issues.apache.org/jira/browse/LUCENE-948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless resolved LUCENE-948.
---------------------------------------
Resolution: Fixed
Fixed on trunk (2.3).
> Writers on two machines over NFS can hit FNFE due to stale NFS client caching
> -----------------------------------------------------------------------------
>
> Key: LUCENE-948
> URL: https://issues.apache.org/jira/browse/LUCENE-948
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.1
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 2.3
>
> Attachments: LUCENE-948-core-2.2.0.jar, LUCENE-948-core-2.2.0.take2.jar, LUCENE-948.patch, LUCENE-948.take2.patch
>
>
> Issue spawned from this thread:
> http://www.gossamer-threads.com/lists/lucene/java-user/50680
> When IndexFileDeleter lists the directory, looking for segments_X
> files to load, if it hits a FNFE on opening such a file it should
> catch this and treat it as if the file does not exist.
> On NFS (and possibly other file systems), a directory listing is not
> guaranteed to be "current"/coherent. Specifically, if machine #1 has
> just removed file "segments_n" and shortly thereafer machine #2 does a
> dir listing, it's possible (likely?) that the dir listing will still
> show that segments_n exists.
> I think the fix is simple: catch the FNFE and just handle it as if the
> segments_n does not in fact exist.
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