bug: apisix 2.5 配置多个vars，跟匹配规则转发不一致

[RalapZ]

Issue description

Environment

centos7
apisix 三节点集群
Bug report without environment information will be ignored or closed.
1.

• apisix version (cmd: apisix version): 2.5

• OS (cmd: uname -a): Linux apisix-preprd-10-49-0-248.qcd.ak.lan 3.10.0-1127.19.1.el7.x86_64 change: added doc of how to load plugin. #1 SMP Tue Aug 25 17:23:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

• OpenResty / Nginx version (cmd: nginx -V or openresty -V):nginx version: openresty/1.19.3.1
  built by gcc 8.3.1 20190311 (Red Hat 8.3.1-3) (GCC)
  built with OpenSSL 1.1.1h 22 Sep 2020 (running 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-0.10.19 --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-0.0.9 --with-ld-opt='-Wl,-rpath,/usr/local/openresty/luajit/lib -L/usr/local/openresty/zlib/lib -L/usr/local/openresty/pcre/lib -L/usr/local/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 have (cmd: run curl http://127.0.0.1:9090/v1/server_info to get the info from server-info API): etcdctl version: 3.4.10
  API version: 3.4

• apisix-dashboard version, if have: 2.6

• luarocks version, if the issue is about installation (cmd: luarocks --version):/usr/local/bin/luarocks 3.4.0

Minimal test code / Steps to reproduce the issue

Bug report without steps to reproduce will be ignored or closed.

1."plugins": {
"traffic-split": {
"disable": false,
"rules": [
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10003"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_A",
"nodes": {
"10.49.8.2:8083": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
},
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10004"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_C",
"nodes": {
"10.49.8.2:8084": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
},
配置多个rule的情况，会出现乱匹配的情况
以下是都是执行命令 curl -X POST http://multiplate-test.naloc.cn/apis/fulfillment/create -H "platform_code:10004"的结果

What's the actual result? (including assertion message & call stack if applicable)

What's the expected result?

期望结果应该是
curl -X POST http://multiplate-test.naloc.cn/apis/fulfillment/create -H "platform_code:10004 " 匹配走10.49.8.2:8084
curl -X POST http://multiplate-test.naloc.cn/apis/fulfillment/create -H "platform_code:10003” 匹配走 10.49.8.2:8083

[tokers]

@RalapZ Please re-format the configuration.

[tokers]

Also, the 502 is abnormal, are you sure the backend services are available and the networking between APISIX and them are healthy?

[RalapZ]

Also, the 502 is abnormal, are you sure the backend services are available and the networking between APISIX and them are healthy?
{
"uris": [
"/apis/*"
],
"name": "xxx",
"methods": [
"GET",
"POST",
"PUT",
"DELETE",
"PATCH",
"HEAD",
"OPTIONS",
"CONNECT",
"TRACE"
],
"hosts": [
"xxxx"
],
"plugins": {
"traffic-split": {
"disable": false,
"rules": [
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10003"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_A",
"nodes": {
"10.49.8.2:8083": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
},
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10004"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_C",
"nodes": {
"10.49.8.2:8084": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
},
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10005"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_D",
"nodes": {
"10.49.8.2:8085": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
},
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10006"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_E",
"nodes": {
"10.49.8.2:8086": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
},
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10007"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_F",
"nodes": {
"10.49.8.2:8087": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
},
{
"match": [
{
"vars": [
[
"http_platform_code",
"==",
"10008"
]
]
}
],
"weighted_upstreams": [
{
"upstream": {
"hash_on": "vars",
"name": "upstream_B",
"nodes": {
"10.49.8.2:8088": 10
},
"pass_host": "pass",
"scheme": "http",
"type": "roundrobin"
},
"weight": 1
}
]
}
]
}
},
"upstream": {
"nodes": [
{
"host": "10.49.8.11",
"port": 655,
"weight": 10
}
],
"timeout": {
"connect": 6,
"read": 6,
"send": 6
},
"type": "roundrobin",
"scheme": "http",
"pass_host": "pass"
},
"status": 1
}
this is all my configuration;
the backend services are unavailable,this is not the problem ;but the proxy result not match my expection

[spacewander]

Fixed by #4092?

[RalapZ]

Fixed by #4092?

well done ，solve my problem