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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Memory leak cause of Comcast DNS problems
On 4/16/2005 10:03 PM, Sean Donelan wrote: > Should other ISPs be concerned they might have the same latent problem > in their systems? "ps v -C <server-process-name>" will tell you how badly you're hurting Anybody that does a bunch of lookups -- whether this is forward lookups for customers or blacklist lookups on mail or whatever -- is probably using more than they think. I don't know of many directly related crash scenarios but there are other penalties like shallow caching which aren't entirely trivial. The churning strategy employed is the question that doesn't get answered. Some servers do FIFO, some do random discards, some use swap space... This whole area is treated like the embarrassing aunt in the cellar. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
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