Hello! On Tue, Aug 03, 2021 at 09:13:07AM -0400, SannisDev wrote:
> I'm running Nginx 1.20.1 on CentOS 8.4.2105 with a quite large geo maps, > including country/isp/connection for both IPv4 and IPv6, with raw size about > 80Mb. > Hardware is: 2x Intel(R) Xeon(R) Silver 4116 CPU @ 2.10GHz, 64Gb RAM > > On nginx testconf or reload I'm experiencing increase of running nginx > latency, 99th percentile growth from 10ms to seconds. [...] > I suppose that this cache misses is the root cause of system slowdown on > testconf/reload. > > Maybe someone have same problem and have some suggestions how to improve > this situation? Loading large geo map can be quite expensive, that's expected: nginx has to parse all the records provided in text and build corresponding radix tree. Make sure you have enough spare CPU and free memory to actually do the work without affecting other tasks on the server. In particular, in my practice it is a good idea to make sure the number of nginx worker processes is less than number of available cores, or you'll risk getting high latencies when doing CPU-intensive tasks like parsing geo maps or compressing logs. Also it might be a good idea to switch to using ranges and a separate include file, so nginx will be able to cache parsing results in a binary file. -- Maxim Dounin http://mdounin.ru/ _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx