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<== Date ==> <== Thread ==>

Subject: Re: IOC CA client limit?
From: Andrew Johnson <anj@aps.anl.gov>
To: Paul Sichta <psichta@pppl.gov>
Cc: tech-talk@aps.anl.gov
Date: Fri, 03 Sep 1999 14:38:10 -0500
Paul Sichta wrote:
> 
> When I connect more than about 24 CA clients to my IOC they don't connect
> and I get the errors shown below (IOC console display first,  medm error on
> workstation below that).   spy  shows the CPU is ~90% idle and   memShow
> shows ~20Mbytes free.  Is there a numerical-limit on how many clients the
> server will accept ?
> 
> IOC>0x1b23070 (CA TCP): CAS: Client accept error
> S_iosLib_TOO_MANY_OPEN_FILESf

There is a numerical limit on the number of open files, and each TCP/IP
socket is an open file.  You can increase this by rebuilding your vxWorks
boot image.  Edit <tornado>/target/config/all/configAll.h and change the
#define NUM_FILES from 50 to something larger - we use 150 here at APS. 
Save, then run make in the config/<arch> directory to rebuild the vxWorks
image and reboot.

- Andrew
-- 
Complexity comes for free, Simplicity you have to work for.


References:
IOC CA client limit? Paul Sichta

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