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Too many files open
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Too many files open


  • Subject: Too many files open
  • From: Eric Arlotti <email@hidden>
  • Date: Wed, 2 Jun 2004 10:08:50 +0200

Hello,

My application is a Web server based on 4th Dimension. It uses a third-party library to manage TCP connections.

In some cases, when many listening sockets are created, we get a -42 error (too many files open) on file manager calls. I suppose that this means that we have reached the maximum number of files or sockets that the system can handle but I don't really know how I can tune Mac OS X kernel to handle more.

First, I have tried to use the sysctl command and increase kern.maxfiles and kern.maxfilesperproc but nothing changed (with or without rebooting). I have also tried to change kern.ipc.maxsockets but I get a "oid 'kern.ipc.maxsockets' is read only" message.

I looked for information about FreeBSD kernel. I have found something about a file named "loader.conf" (/boot/loader.conf) that would contain system configuration but I couldn't find it in Mac OS X system.

I suppose that there are others system variables to tune but I don't know them. And I also don't know how to make these changes permanent after a system reboot.

Any help or advice would be greatly appreciated.

Thanks.

Eric Arlotti
email@hidden
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    • Re: Too many files open
      • From: Allan Nathanson <email@hidden>
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