ranxuxin opened a new issue, #9140:
URL: https://github.com/apache/apisix/issues/9140
### Description
Hello everyone,
My apisix 2.9 has more than 15 thound routes currently. And when I use
script to update large amount of routes frequently(sleep 0.5 to 5 seconds), my
apisix costs cpu near 100%. It leads to request apisix slowly as normal
request.
I've read some source code of apisix. The season may apisix firstly
search relevant node in radix tree. And secondly insert node in radix tree. But
most of my routes has the same uri "/*" . The radix tree should has a few
nodes, but it has an array with many routes which has the same uri. However, it
only append a new route to the array. It should cause little cpu time. So the
only area which cause long cpu time should be search and insert node in the
radix tree.
Is there any strategy to improve the apisx's performance for updating or
creating a route while large amount of routes already exist in the apisix,
please? And suggest is appreciated.
Best Regards,
Ranxuxin
### Environment
- APISIX version (run `apisix version`): apisix-2.9-0.el7.x86_64
- Operating system (run `uname -a`): Linux 3.10.0-862.el7.x86_64 #1 SMP
Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`): nginx
version: openresty/1.19.9.1
built by gcc 9.3.1 20200408 (Red Hat 9.3.1-2) (GCC)
built with OpenSSL 1.1.1k 25 Mar 2021
TLS SNI support enabled
configure arguments: --prefix=/usr/local/openresty/nginx --with-cc-opt='-O2
-DNGX_LUA_ABORT_AT_PANIC -I/usr/local/openresty/zlib/include
-I/usr/local/openresty/pcre/include -I/usr/local/openresty/openssl111/include'
--add-module=../ngx_devel_kit-0.3.1 --add-module=../echo-nginx-module-0.62
--add-module=../xss-nginx-module-0.06 --add-module=../ngx_coolkit-0.2
--add-module=../set-misc-nginx-module-0.32
--add-module=../form-input-nginx-module-0.12
--add-module=../encrypted-session-nginx-module-0.08
--add-module=../srcache-nginx-module-0.32 --add-module=../ngx_lua-0.10.20
--add-module=../ngx_lua_upstream-0.07
--add-module=../headers-more-nginx-module-0.33
--add-module=../array-var-nginx-module-0.05
--add-module=../memc-nginx-module-0.19 --add-module=../redis2-nginx-module-0.15
--add-module=../redis-nginx-module-0.3.7 --add-module=../ngx_stream_lua-0.0.10
--with-ld-opt='-Wl,-rpath,/usr/local/openresty/luajit/lib
-L/usr/local/openresty/zlib/lib -L/usr/local/openresty/pcre/lib -L/usr/loc
al/openresty/openssl111/lib
-Wl,-rpath,/usr/local/openresty/zlib/lib:/usr/local/openresty/pcre/lib:/usr/local/openresty/openssl111/lib'
--with-cc='ccache gcc -fdiagnostics-color=always' --with-pcre-jit
--with-stream --with-stream_ssl_module --with-stream_ssl_preread_module
--with-http_v2_module --without-mail_pop3_module --without-mail_imap_module
--without-mail_smtp_module --with-http_stub_status_module
--with-http_realip_module --with-http_addition_module
--with-http_auth_request_module --with-http_secure_link_module
--with-http_random_index_module --with-http_gzip_static_module
--with-http_sub_module --with-http_dav_module --with-http_flv_module
--with-http_mp4_module --with-http_gunzip_module --with-threads --with-compat
--with-stream --with-http_ssl_module
- etcd version, if relevant (run `curl
http://127.0.0.1:9090/v1/server_info`): 3.5
- APISIX Dashboard version, if relevant:
- Plugin runner version, for issues related to plugin runners:
- LuaRocks version, for installation issues (run `luarocks --version`):
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