RE: too many file handles

Richard,

If a quick workaround is fitting, the problem can be dodged at the system level.  I'll pick 8192 open files on Linux for example:

/etc/security/limits.conf

	myuser	hard nofile 8192
	myuser	soft nofile 8192

This doesn't address the open file count within Raku, but sometimes people just want to get by the snag and keep flowing.

Mark

-----Original Message-----
From: Richard Hainsworth <rnhainsworth@gmail.com> 
Sent: Wednesday, March 17, 2021 13:46
To: perl6-users <perl6-users@perl.org>
Subject: too many file handles

I have been running into this error: "Too many open files"

Sorry for the lack of detail. The problem is that the error comes up in odd places, so I have found it difficult to golf down into Raku program that always fails with this error.

When I separate out the code that leads to the error, and create another program, Raku handles it without difficulty. It seems to occur when there are a lot of moving parts, so to speak.

I am not explicitly opening file handles, but the software I have written is using the idiom

"some-filename.html".IO.spurt( $an-accumulated-string );

Obviously, filehandles are being opened under the hood. Having written a file, there is no need to reference it again, so I could close the filehandle.

I have been told that because of the way garbage handling is implemented, there is a problem with file handles. If so, what is a safer idiom to use in place of and IO on a string, so that the handle can be closed immediately after use?

Appreciate some help on this.

Richard

• too many file handles by Richard Hainsworth
• RE: too many file handles by Mark Devine
• Re: too many file handles by Elizabeth Mattijsen
• Re: too many file handles by Richard Hainsworth
• Re: too many file handles by Elizabeth Mattijsen
• Re: too many file handles by David Emanuel da Costa Santiago
• Re: too many file handles by JJ Merelo