Is your index on a remote file system?

You could be hitting https://issues.apache.org/jira/browse/LUCENE-5541

Best to upgrade Lucene (we stopped relying on File.exists a while back).

Mike McCandless

http://blog.mikemccandless.com


On Thu, Jan 15, 2015 at 12:10 PM, Ian Koelliker <ikoelli...@axsone.com> wrote:
> Hello,
> We are seeing some weird instances of index corruption periodically when 
> using Lucene 2.9.4. There are two specific cases we are seeing.
>
>
> 1)      We are using the compound format and have noticed that sometimes we 
> get errors when searching noting that files are missing (i.e. .fnm, .fdt, 
> etc.) even though we have a .cfs file
>
> 2)      We have an index that is searchable but it appears that the stored 
> terms for some of the documents have been lost (i.e. searching is successful, 
> but the expected stored terms for those messages are not there). Running the 
> CheckIndex tool on this index fails.
>
> Any ideas how these scenarios could occur? Are there any known issues in 
> Lucene 2.9.4 that would cause this to happen?
>
> Thanks,
> Ian

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