[GitHub] [apisix] zwjzxh520 opened a new issue #4869: 自己写插件的时候，遇到了问题：API disabled in the context of log_by_lua

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

zwjzxh520 opened a new issue #4869:
URL: https://github.com/apache/apisix/issues/4869


   ### Issue description
   
   依照 api-breaker 自己编写了一个插件，将计数器放到redis中，但是发现运行的时候一直报以下错误：
   ```
   2021/08/20 16:46:14 [error] 45#45: *2067 failed to run log_by_lua*: /usr/local/apisix/apisix/patch.lua:315: API disabled in the context of log_by_lua*
   stack traceback:
   	[C]: in function 'original_tcp'
   	/usr/local/apisix/apisix/patch.lua:315: in function 'tcp'
   	/usr/local/openresty/lualib/resty/redis.lua:63: in function 'redis_new'
   	/usr/local/apisix/apisix/plugins/sdp-api-breaker.lua:131: in function 'new_redis'
   	/usr/local/apisix/apisix/plugins/sdp-api-breaker.lua:239: in function 'phase_func'
   	/usr/local/apisix/apisix/plugin.lua:679: in function 'common_phase'
   	/usr/local/apisix/apisix/init.lua:681: in function 'http_log_phase'
   ```
   
   报错相关代码如下：
   ![image](https://user-images.githubusercontent.com/2184202/130379529-2eeba431-0b9f-460e-9af7-fdf9951e845c.png)
   
   ```lua
   function _M.log(conf, ctx)
       local redis_util, err = new_redis(conf)
       if redis_util == nil then
           core.log.error("redis init failed at _M.log, err: ", err)
           return
       end
       local unhealthy_key = gen_unhealthy_key(ctx)
       local healthy_key = gen_healthy_key(ctx)
       local upstream_status = core.response.get_upstream_status(ctx)
   ```
   
   请帮忙找找解决办法，谢谢大家了～
   
   ### Environment
   
   - apisix version (cmd: `apisix version`):      **2.8**
   - OS (cmd: `uname -a`):   **alpine docker**
   - OpenResty / Nginx version (cmd: `nginx -V` or `openresty -V`):   **nginx version: openresty/1.19.3.1**
   - etcd version, if have (cmd: run `curl http://127.0.0.1:9090/v1/server_info` to get the info from server-info API):   **3.4.0**
   - apisix-dashboard version, if have:
   - luarocks version, if the issue is about installation (cmd: `luarocks --version`):
   


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[GitHub] [apisix] spacewander commented on issue #4869: 自己写插件的时候，遇到了问题：API disabled in the context of log_by_lua

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

spacewander commented on issue #4869:
URL: https://github.com/apache/apisix/issues/4869#issuecomment-903396043


   `ngx.socket.tcp` doesn't support log_by_lua: https://github.com/openresty/lua-nginx-module#ngxsockettcp
   
   You may use `ngx.timer.at` to work around it.


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[GitHub] [apisix] spacewander closed issue #4869: 自己写插件的时候，遇到了问题：API disabled in the context of log_by_lua

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

spacewander closed issue #4869:
URL: https://github.com/apache/apisix/issues/4869


   


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