Queries aborted due to Quota

[Ben]

added one question:

i found some logs in syslog,

Jul 28 03:13:42 ns1 named[20922]: adb: grow_entries finished
Jul 28 03:13:42 ns1 named[20922]: adb: grow_names to 2039 starting
Jul 28 03:13:42 ns1 named[20922]: adb: grow_names finished

what does it mean by adb growing..?

Is there any document or link from which, we can read about rndc stats 
commands in deep or any FAQ/Information about general error messages 
regarding bind services.

Best Regards,
Ben
> Hi,
>
> I am monitoring rndc stats output and got
>
> ++ Resolver Statistics ++
> [Common]
>                82121 queries aborted due to quota
>                 5987 failures in opening query sockets
>
> What does it mean by queries aborted due to quota and failing in 
> opening query socket ?
>
> Is there any OS resource limitation or ?
>
> BIND 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6
>
>
> Regards,
> Ben