MergeFactor and MergeDocs are left at default values. The indexing is incremental, i.e. whenever someone adds or modifys a file to in svn repository, the lucene index is updated, and the writer/reader/searcher are refreshed (closed and opened again).,

According to the svn logs for the time the files were created, a few hundred files were added that day.

Overall, the index would have started out with around 150,000 to 200,000 documents, with anything from 100 to 1000 being added per day.

I don't optimize the index at any point, but I've never seen it get like this before.

Thanks,
John

Erick Erickson wrote:
What are your IndexWriter MergFactor and MergeDocs set to? Also, are
the dates on all these files indicative of all being create during the same
indexing run?

Finally, how many documents are you indexing?

Best
Erick

On Tue, Feb 3, 2009 at 10:26 AM, John Byrne <john.by...@propylon.com> wrote:

Hi,

I've got a weird problem with a lucene index, using 2.3.1. The index
contains 6660 files. I don't know how this happened.Maybe somone can tell me
something about the files themselves? (examples below)

On one day, between 10 and 40 of these files were being created every
minute. The index updates are triggered by updates to an SVN repository, but
I can't find any corresponding activity in the SVN logs.

The lucene files all have names like this:

_1qsw.cfs
_1qsx.cfs
_1qsy.cfs
_1qsz.cfs
_1qt0.cfs

and are mostly < 5K in size.

My application uses just one instance each of
IndexReader/IndexWriter/IndexSearcher. From looking at

Can anyone shed any light on these files? I'm not too hopeful about fixing
this index because we are getting "too many open files", even with an
unlimited ulimit, but any info/suggestions would be great. Thanks.

-John




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