Reducing memory usage by using db storage - performance?
jm5903 at att.com
Thu Mar 24 11:27:57 UTC 2016
Recently been looking at servers that host almost 200K ARPA zones and load about 80 million resource records. They run on good hardware and take only a few minutes to load the zones on a clean start. The issue is memory utilization of about 23 Gig in RAM.
It seems a terrible waste of memory and a good portion of those zones probably rarely see queries.
I've got extensive experience with mySQL and postgres, but always assumed you'd really take a latency hit. Plus, we'd be adding more complexity by running a DB server. The current DNS servers are located in separate data centers - it seems we'd have to also run a master/slave DB setup, with a slave DB server at each site to avoid network overhead. This all sounds very slow and more complicated.
Anyone with experience solving this type of issue?
John Murtari - jm5903 at att.com<mailto:jm5903 at att.com>
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