# File names

**URL:** <https://discuss.elastic.co/t/file-names/7854>\
**Category:** Elasticsearch\
**Created:** [May 25, 2012, 2:02am UTC](https://discuss.elastic.co/t/file-names/7854 "2012-05-25T02:02:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Dennis](https://avatars.discourse-cdn.com/v4/letter/d/e56c9b/32.png) [@Dennis](https://discuss.elastic.co/u/Dennis)\
**Post date:** [May 25, 2012, 2:02am UTC](https://discuss.elastic.co/t/file-names/7854/1 "2012-05-25T02:02:14Z")

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I have a directory that gets created in my codebase called indexes, and  
below that is a name that is related to an entity that I am storing in the  
index . . . I think.

anyway, hunting down what this is, and could NOT find the name of the  
directory, filenames, or extenstions that ES uses!

So, I've got names like:  
\_0.fdt \_0.fnm \_0.nrm \_0.tii \_1.fdt \_1.fnm \_1.nrm \_1.tii \_2.fdt  
\_2.fnm \_2.nrm \_2.tii \_3.fdt \_3.fnm \_3.nrm \_3.tii segments\_5  
\_0.fdx \_0.frq \_0.prx \_0.tis \_1.fdx \_1.frq \_1.prx \_1.tis \_2.fdx  
\_2.frq \_2.prx \_2.tis \_3.fdx \_3.frq \_3.prx \_3.tis segments.gen

Any of this related to ES?

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**Author:** ![Dennis](https://avatars.discourse-cdn.com/v4/letter/d/e56c9b/32.png) [@Dennis](https://discuss.elastic.co/u/Dennis)\
**Post date:** [May 25, 2012, 2:12am UTC](https://discuss.elastic.co/t/file-names/7854/2 "2012-05-25T02:12:58Z")

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Actually, I found the answer by grepping where the object name under  
listing was in my files.

Turns out that our source control needs some work. I had deleted  
Hibernate's search from the files, and one of my coders put it back.

Just for everyone else's education, since all open source search engines  
are using lucene indexes and functionality, they will ALL have those file  
types. The big clue was searching online for 'segments.gen' filename.

And the grepping 🙂

On Thursday, May 24, 2012 9:02:14 PM UTC-5, Dennis wrote:

> I have a directory that gets created in my codebase called indexes, and  
> below that is a name that is related to an entity that I am storing in the  
> index . . . I think.
> 
> anyway, hunting down what this is, and could NOT find the name of the  
> directory, filenames, or extenstions that ES uses!
> 
> So, I've got names like:  
> \_0.fdt \_0.fnm \_0.nrm \_0.tii \_1.fdt \_1.fnm \_1.nrm \_1.tii \_2.fdt  
> \_2.fnm \_2.nrm \_2.tii \_3.fdt \_3.fnm \_3.nrm \_3.tii segments\_5  
> \_0.fdx \_0.frq \_0.prx \_0.tis \_1.fdx \_1.frq \_1.prx \_1.tis \_2.fdx  
> \_2.frq \_2.prx \_2.tis \_3.fdx \_3.frq \_3.prx \_3.tis segments.gen
> 
> Any of this related to ES?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:27am UTC](https://discuss.elastic.co/t/file-names/7854/3 "2017-07-06T03:27:11Z")

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