For more information, man listen(3XNET).
This is old, but still affects all versions of Solaris:
http://www.ciac.org/ciac/bulletins/h-02.shtml
Two birds, one stone.
Joseph
Quanah Gibson-Mount wrote:
--On Tuesday, May 03, 2005 3:08 PM -0400 matthew sporleder <msporleder@gmail.com> wrote:
Running Solaris 8 and recent versions of openldap, I was experiencing slapd crashes (graceful shutdowns) under heavy load.
After increasing SLAPD_LISTEN from 10 to 1000000, I found that slapd would take over more of the cpu (never done that before) and could handle even more load without crashing. Is there any reason why this is set to 10 by default, and is there any reason not to change it?
This seems related to an ITS I opened recently after my solaris server unexpectedly shut down gracefully (ITS#3677).
I unfortunately don't know the effect of increasing the number of listeners 6 powers, but I doubt it needs to be that excessive to fix your problem. Given that most OS's by default won't except more than 1,024 connections at once without some tweaking, you could likely get by with a smaller value (100? 1000?). I too am curious what the effects/pitfalls could be in increasing the default number of listeners.
Currently, there is a threads setting that lets you change the number of threads slapd uses. Perhaps there could be a 'listeners' parameter as well, if that is possible. I would still like to know more about the possible side effects.
--Quanah
-- Quanah Gibson-Mount Principal Software Developer ITSS/Shared Services Stanford University GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html