DNS_RRL_MAX_RATE defines 1000
chengzhycn at gmail.com
Wed Jul 8 06:47:36 UTC 2020
I deployed a cluster of DNS which combined with a master and two slaves recently. I opened the response rate limiting function in slaves, which parameters like below:
But even with this configuration, there were still some dns queries dropped cause the RRL. I viewed the rrl.h and noticed the max rrl rate are defined like this:
#define DNS_RRL_MAX_RATE 1000
And "all-rer-second” shouldn’t larger than DNS_RRL_MAX_RATE.
So could anybody tell me why DNS_RRL_MAX_RATE defined 1000? And is there any other methods to bypass this limits?
Thanks and Regards, Zhiyong Cheng
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