Re: Operation cancelled Error

2012-05-31 Thread Ben
Dear ISC Team, Any input please, if is there anything from my side, kindly suggest me. Best Regards, Ben Dear ISC Team, Any suggestions please. Regards, Ben Hi, I tried all things to avoid current problem, but still same.Can we have information that why bind shows "Operation canceled" err

rndc/controls block clarification needed?

2012-05-31 Thread Jon A.
Just spent a bit of time on missing a subtle rndc issue with Bind 9.9.1's control block -- either I'm missing a better way to do this, or perhaps bind should more appropriately issue a warning or fail to load instead of silently accepted my bad control block. I did RTFM, and until I'd spent a bunc

Recommended value for max-cache-size for cache-only shared hosts..

2012-05-31 Thread blrmaani
We are planning to use cache-only BIND configuration on our hosts. These hosts are shared hosts i.e BIND runs along with other applications on these hosts. RAM size on these hosts = 8GB and hard- disk size=500GB. Question: what is the recommended configuration for 'max-cache-size' for optimum usag

Re: Recommended value for max-cache-size for cache-only shared hosts..

2012-05-31 Thread Doug Barton
On 5/31/2012 1:51 PM, blrmaani wrote: > Question: > what is the recommended configuration for 'max-cache-size' for optimum > usage ? You should not restrict the size of the cache at all if you want the best performance. BIND will use as much memory as it needs in order to satisfy the requests of

Re: Recommended value for max-cache-size for cache-only shared hosts..

2012-05-31 Thread Michael Graff
Hmm, I don't quite think this is a good idea. BIND 9 (since 9.5) manages memory quite well, but it will happily consume all you have and go into swap. I'd set it high enough (on a dedicated machine) to use plenty of RAM, but low enough to not cause other OS components to swap out or BIND itself

Re: Recommended value for max-cache-size for cache-only shared hosts..

2012-05-31 Thread blr maani
Doug, hmmm.. 75%-85% seems too large because the host runs email application in addition to cache-and-forward-only BIND (for better local caching). So, I was wondering if there are any best/proven practice/recommendations for such shared application hosts ? The default value is 32MB. We have 8GB

Re: Recommended value for max-cache-size for cache-only shared hosts..

2012-05-31 Thread Michael Graff
It's really something you'll have to set, and monitor. I'd start with 1 GB, and see how close it gets to that in (say) a week. If it takes a few hours, you might need to go up to 2 or 4, and see how that works. It may never hit the memory limit. Also note that there is 10% to 20% overhead, s