ftlynx opened a new issue, #7697: URL: https://github.com/apache/apisix/issues/7697
### Description 请问下 apisix的upstream node设置成域名。如a.test.com， 此时a.test.com解析出来的IP是1.1.1.1。 如果在某个时候，a.test.com 的解析被改成了2.2.2.2， apisix能感知到dns解析的变化吗？ 关于upstream 的处理逻辑大概是什么样呢？是下面三个情况还是其它的逻辑呢？ 1. 添加upstream的时候解析一下域名对应的ip，一直固定成这个IP 2. 每次请求upstream的时候解析一下这个域名 3. 每次请求upstream的时候解析且apisix还维护了一个dns缓存 目前我测试出来的结果是，我把a.test.com的dns解析从 1.1.1.1修改成2.2.2.2后，访问apisix的时候，upstream的地址1.1.1.1, 2.2.2.2 都存在,是否是缓存导致的呢？我已经在机器上面dig a.test.com出来的IP是2.2.2.2了。 ### Environment - APISIX version (run `apisix version`): - Operating system (run `uname -a`): - OpenResty / Nginx version (run `openresty -V` or `nginx -V`): - etcd version, if relevant (run `curl http://127.0.0.1:9090/v1/server_info`): - APISIX Dashboard version, if relevant: - Plugin runner version, for issues related to plugin runners: - LuaRocks version, for installation issues (run `luarocks --version`): 使用的是docker image 为 apache/apisix:2.15.0-centos -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
