too many files in a directory

Ross Boylan ross at
Fri Nov 5 21:44:40 EDT 2010

Thanks for your reply.
On 11/5/2010 6:18 PM, David Lang wrote:
>> I have a narrow question and a broader one.  Narrowly, if I create some
>> other folders and move some of the messages into them, will it help?  My
>> understanding is that cyrus tries to avoid copying or moving message
>> files around on disk, and so I suspect the files will continue to take
>> up space in the original directory even if I move them.
> if you copy them to the new folder, 
are you talking about a filesystem copy, or a copy via imap?

> delete them from the old folder, and expunge them, then the directory 
> slots will be freed up. I don't think that ext3 will actually shrink 
> the directory, but it will re-use these available slots for new files. 

[deleted stuff on XFS]
Yes, I noticed XFS seems to have quite a few people with good 
experiences.  That's another one I might consider.  I was a little 
reluctant because I've also seen (not in this list) people saying it ate 
their data.  Of course, a lot of people said that about reiserfs too, 
and probably every other file system...


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