maximum number of FD events received in bind-9.4.3b2

[Sotiris Tsimbonis]

On 07/16/2008 10:21 AM, Mark Andrews wrote:
>> Hi all,
>>
>> after upgrading to bind-9.4.3b2 I see the following in the logfile
>>
>> 16-Jul-2008 08:55:11.547 general: sockmgr 25af70: maximum number of FD 
>> events (64) received
>> 16-Jul-2008 08:57:11.796 general: sockmgr 25af70: maximum number of FD 
>> events (64) received
>> 16-Jul-2008 08:57:11.797 general: sockmgr 25af70: maximum number of FD 
>> events (64) received
>> 16-Jul-2008 09:37:17.581 general: sockmgr 25af70: maximum number of FD 
>> events (64) received
>> 16-Jul-2008 09:37:17.677 general: sockmgr 25af70: maximum number of FD 
>> events (64) received
>>
>> % uname -a
>> SunOS mantis 5.9 Generic_122300-02 sun4u sparc SUNW,Sun-Fire-V210
>>
>> In lib/isc/unix/socket.c I see a comment in #ifdef USE_KQUEUE
>> * This is not an error, but something unexpected.  If this
>> * happens, it may indicate the need for increasing
>> * ISC_SOCKET_MAXEVENTS.
>>
>> but there is no such comment in #elif defined(USE_DEVPOLL)
>>
>> Since this is a Solaris 9 system, I assume bind uses /dev/poll ..
>> Is it something I should worry about?
> 
> 	It just makes named slightly less efficient.
> 
>> Do I need to increase ISC_SOCKET_MAXEVENTS?
> 
> 	You could.
> 

I increased ISC_SOCKET_MAXEVENTS to 128 and I now see these warnings a 
few times a day (in contrast with many times in an hour, when it was 64).

Sot.