RE: Limits on IFS file opens and closes?

 
I know a shop that had a major problem with creating files in the IFS.  They
were writing new files to fast and their replication software (MIMIX) could
not keep up.  If I recall correctly the problem was that setting the
permissions took to long.  They were creating 300,000+ files a day into a
directory and the system could not keep up.

--
Doug Hart
 
 

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Chris Bipes
Sent: Tuesday, February 21, 2006 10:16 PM
To: Midrange Systems Technical Discussion
Subject: RE: Limits on IFS file opens and closes?

The old "It Depends."  Are you re-using the file descriptors if you re-open
the same file or are you opening and closing thousands of different files?
I do believe there is a limit on file descriptors you can create.  Now if
you properly close them and reclaim the resources, you should be able to
open all the files in the world, a few at a time.


Christopher Bipes
Information Services Director

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of James H H Lampert
Sent: Tuesday, February 21, 2006 6:36 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Limits on IFS file opens and closes?

Does anybody know of any "brick walls" in OS/400, with regard to how many
times a single job can open and close files? Note, I don't mean how many
files can be open at a given time, but how many can be opened and closed in
sequence, whether through UNIX-type I/O, or the IFS version of C standard
I/O.