If there are a limitation of the file numbers in a directory?

[David Shao]

If the answer is yes,How to set this limitation?

[Printaporn_1]

Hi David,

see man newfs_hfs there is option -i number_of_bytes_per_inode
decrease this value will increase inode for file system which need to keep many small files.

[S.K. Chan]

Recent discussion on similar topic..

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xbacd91ccb36bd611abdb0090277

Hope it helps ..

[steven Burgess_2]

Hi

And another one

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xcd745220af9bd5118ff10090279cd0f9,00.html

Regards

Steve

[S.K. Chan]

Here it is again, disregard previous link.

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xbacd91ccb36bd611abdb0090277a778c,00.html

[Systeemingenieurs Infoc]

The amount of direct subdirectories under one directory is limited :
grep LINK_MAX /usr/include/limits.h
=> 32767

I think it's good to know (we learned it the hard way !).

So if you want to limit the number of files
in one directory by branching, branch fast
enough (eg 0000/0000/0000/0001.txt!)

Using this algorithm, we're managing a small
20.000.000 files.

Hein Coulier

[Klaus Crusius · Accepted solution]

Hi,

have more than (say) 2000 files directly in one directory will produce considerable performance problems, when accessing this directory. I experienced this on a productive environment, when a outbreak process had created thousands of /tmp-files.
A innocent command like "rm *.old" might not be executed, because the shell command line expansing produces more the 20k.

Thanks, Klaus