OK thanks. I have read the performance doc, So I have two servers that are serving 250k customers, it is recommended that I configure 10g for cache in one instance? I have 16 cores (with hyper threading) in each one. Should I configure 8 or 16 threads? El mar. 4, 2016 10:19 AM, "Andi via Unbound-users" < [email protected]> escribió:
> Zitat von Miguel Miranda via Unbound-users <[email protected]>: > > Hello to all, im installing a load balancer and i want to run multiple >> unbound instances, im doing this because my it experts says it is not >> recommended to have a huge cache (i have 32GB available) it is better to >> have 2 or 3 GB cache in multiple unbound instances, this is good for high >> availability too, so if a instances dies the balancer notices it and the >> other instances take the load, what do you think about it ? if this a is >> a good idea, how to run multiple unbound instances, i am running unbound >> 1.5.1 Centos 6.7. >> regards. >> > > I would not suspect that the cache size would be a limiting factor for > Unbound. It *can* be problematic if you need a lot of CPU power and > therefore have a lot (>> 8) of threads using the same cache because of lock > contention. > For details have a look here : > http://www.unbound.net/documentation/howto_optimise.html > If you need high availability multiple instances will not help that much > if they use the same kernel and/or the same hardware, so you have to split > the multiple instances on multiple machines and maybe even different OS. > > Regards > > Andreas > > > >
