queries aborted due to quota

[Stephen Wood]

We are measuring the performance of our bind9 cache & forward servers.
Under "++ Resolver Statistics ++", we see a high number of "queries aborted
due to quota".

I can't find information regarding this number in the documentation.
Overall, the SERVFAIL numbers are low. Are aborted queries simply retried?
Do I need to make any kernel level changes, like allowed sockets or open
files? How do I troubleshoot this message?

Thank you,
Stephen Wood
Systems Engineer
SEOmoz, Inc.
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