[geeks] Solaris 10 max connections limit?

[Phil Stracchino]

Phil Stracchino wrote:
> Phil Stracchino wrote:
>> I'm installing NUT (Network UPS Tools) on my Solaris 10 x86 box, and
>> upsd is dying because when it requests FD_SETSIZE (1024) maximum
>> connections by default, it's apparently getting back only 256 allowed.
>>
>> Not that I'm ever going to need even 256 ... I actually just patched the
>> code to request only 128, and even that is overkill in my environment.
>> But does anyone know why Solaris 10 would limit a privileged application
>> started by root to 256 connections?  Is it a configurable limit?
> 
> Further:  it appears tcp_conn_req_max_q defaults to 128.  I can't find
> any applicable tunables that default to 256.

Aaaahhh ....   found it.  Looks like rlim_fd_cur is the culprit,
defaulting to 256.  I'll increase this to 2048 on my next reboot and see
if that does the job.


-- 
  Phil Stracchino, CDK#2     DoD#299792458     ICBM: 43.5607, -71.355
  alaric at caerllewys.net   alaric at metrocast.net   phil at co.ordinate.org
         Renaissance Man, Unix ronin, Perl hacker, Free Stater
                 It's not the years, it's the mileage.