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Article #9465

Too many files open

#9465
From: Lee Spector
Date: Wed, 13 Dec 1989 19:17
28 lines
2031 bytes
I was just doing some work with lots of files open (mostly word processing 
stuff) in various applications under multifinder.  When I tried to do a save of
a draw document (the only one I had open) I got an Error -42, which the
SystemErrors DA says means "too many files open".  I presume I'm bumping
up against an operating system limit (but see below).  If this is correct, 
is there a way for me to increase the allowed number of open files (perhaps 
with ResEdit)?

A strange thing about this, though, is that the number of open files allowed 
seems to depend on the application, at least to some extent.  Some
applications seem to have no limit (I haven't hit one yet with Allegro
Common Lisp), and others seem to have a built in limit or a limit based on
the memory that you give them (these applications give you a custom alert
or just grey their "new" and "open" menu items).  However, I've seen  
what seem to OS errors a few times: the Error -42, an alert saying
something like "Can't open <application name> (too many files open)", and
something like "Too many files open to complete that operation.  Close a
document and try again."  I'm just wondering if there's a way around the
problems that ARE imposed by an OS limit.

I looked through my mac documentation and couldn't find a specific reference
to this problem.  I did see a suggestion to increase the size of Finder	
(for the sake of another problem).  I tried this, though, and it had no
effect. 

  Any comments would be appreciated.

  -Lee (spector@cs.umd.edu)
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From: spector@brillig.umd.edu (Lee Spector)
Newsgroups: comp.sys.mac
Subject: Too many files open
Message-ID: <21277@mimsy.umd.edu>
Date: 13 Dec 89 19:17:39 GMT
Sender: news@mimsy.umd.edu
Reply-To: spector@brillig.umd.edu (Lee Spector)
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
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