[GitHub] [apisix] tokers commented on issue #4294: request help: performance when apisix support many routes

[GitBox <gi...@apache.org>]

tokers commented on issue #4294:
URL: https://github.com/apache/apisix/issues/4294#issuecomment-846918931


   > We want to use apisix for kubernetes http services. Now we has exposed the pod's ip and port into upstream. So the apisix can trasport flow to kubernetes pods.We have many services (serval thounsand), so the number of the route and upstream will be large. At this situation, the upstreams chanage frequently as the pods change frequently.
   > I want to know the performance (such as Latency, Qps and so on) when apisix support thounsands of routes and upsteams(and the route or upstream data change frequently).
   > Fisrt: it seems like that: each nginx worker has its own route and upstream cache, the whole cache will be rebuilt after a route in etcd change. I don't think it is efficient.
   > Sencond: is the way(now I do not know the details yet) to match router by using radixtree efficient or not? Do you have some test results?
   > Looking forward to your explanation. Thank you.
   > 
   > ### Issue description
   > ### Environment
   > Request help without environment information will be ignored or closed.
   > 
   > * apisix version (cmd: `apisix version`):  2.4
   > * OS (cmd: `uname -a`):     centos 7.3
   > * OpenResty / Nginx version (cmd: `nginx -V` or `openresty -V`):     openresty v1.19.3.1
   > * etcd version, if have (cmd: run `curl http://127.0.0.1:9090/v1/server_info` to get the info from server-info API):   v3.4.15
   > * apisix-dashboard version, if have:
   > * luarocks version, if the issue is about installation (cmd: `luarocks --version`):
   
   > Fisrt: it seems like that: each nginx worker has its own route and upstream cache, the whole cache will be rebuilt after a route in etcd change. I don't think it is efficient.
   
   Does the change frequent in your case?
   
   > Sencond: is the way(now I do not know the details yet) to match router by using radixtree efficient or not? Do you have some test results?
   
   Don't worry about this, the time complexity is not related to the number routes.


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