> On 9/21/2011 5:00 PM, TMK wrote: >> I have couple of questions. >> >> bind cache memory limit is 4GB. can I increase it. or this is hard-coded >> limit. >> >> i'm running the x64 bit version. > You can _try_ to raise that limit above 4Gb (see the various > configuration elements under "Operating System Resource Limits" in the > ARM), but your OS may still limit you. You'd need to look at your OS > documentation to see how to raise "soft" and/or "hard" limits.
if i try to set the max-cache size to more that 4GB it says very large number. and the default if left un-set it should be unlimited as per ARM. >> also to increase the cache hit ratio I have created script to query my >> dns for the top 1 million sites. would this give any performance >> advantages or is it useless. >> > Since a large percentage of those top sites use DNS-based load-balancing > with small TTLs on their records, it's pretty useless. > > Of course, you can measure your cache hit ratio to see if it's really > helping you or not. Real data always beats pure speculation. > > > - Kevin to use more memory I have created two instances of the bind. one is listening on the machine IP addr. and the other on the loop-back address (127.0.0.1). i have set the first instance (which is accepting the client connection) to forward only and the forwarders is the 127.0.0.1. would this give me better cache hit ratio. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
