[Pdns-users] sudden load spikes
norbert at linuxnetworks.de
Thu Dec 9 09:32:55 UTC 2004
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On Thursday 09 December 2004 03:56, Eric Hendrickson wrote:
> I have about 2 million records in a mysql database. Everything's been
> working beautifully until today. Suddenly pdns jumps to 99.9 percent CPU
> when the query load gets up to more than 15 or so queries/sec. I've
> never had this problem before with loads up to 100 or so queries/sec.
> and a similar number of database entries.
> We add about 500 to 700 A records daily and I'm wondering if we've
> reached some sort of limit with MySQL/pdns. When q/sec is low, I get
> response very rapidly but it quickly falls apart as q/sec goes up.
> Right now I'm only answering about 20 of my queries. Ouch.
I assume restarting pdns didn't help.
What version of pdns do you use?
Is there something suspicious in the logs (maybe after increasing the
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