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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2021/04/26 08:47:01 UTC

[GitHub] [skywalking] kasimLZ opened a new issue #6839: [KONG]

kasimLZ opened a new issue #6839:
URL: https://github.com/apache/skywalking/issues/6839


   Please answer these questions before submitting your issue.
   
   - Why do you submit this issue?
   - [x] Question or discussion
   - [x] Bug
   - [ ] Requirement
   - [ ] Feature or performance improvement
   
   ___
   ### Question
   
   I installed a skywalking plugin on my service in kong. I would like to use it to monitor my ES cluster. 
   
   The skywalking configuraion like this.
   ```json
    "config": {
       "service_name": "Kong Service",
       "sample_ratio": 1,
       "namespace": null,
       "max_callback_time_spent": 5000,
       "service_instance_name": "Kong Service Instance",
       "backend_http_uri": "http://192.168.1.101:12800"
     }
   ```
   
   I sure about that back end URL is accessible.
   
   But when I switch on this plugin, the kong gateway will throw a error message like this:
   ```json
   {
       "message": "An unexpected error occurred"
   }
   ```
   
   I checked  the proxy error log. follow this
   
   ```
   2021/04/26 08:15:13 [error] 24#0: *254687 [kong] init.lua:271 [skywalking] ...uarocks/share/lua/5.1/kong/plugins/skywalking/tracer.lua:72: attempt to concatenate local 'namespace' (a nil value), client: 192.168.1.250, server: kong, request: "POST /myindex/_search HTTP/1.1", host: "192.168.1.1:9200"
   ```


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[GitHub] [skywalking] kasimLZ commented on issue #6839: [KONG] Skywalking agent plugin for Kong throw an exception

Posted by GitBox <gi...@apache.org>.
kasimLZ commented on issue #6839:
URL: https://github.com/apache/skywalking/issues/6839#issuecomment-826733293


   I follow this document [README.md](https://github.com/apache/skywalking-kong/blob/master/README.md) to install the plugin.
   
   I repackaged the image based on kong:2.4.0. This is my dockerfile:
   ```Dockerfile
   FROM kong:2.4.0
   
   RUN luarocks install kong-plugin-skywalking --local
   
   ENV KONG_NGINX_HTTP_LUA_SHARED_DICT="tracing_buffer 128m"
   
   ENTRYPOINT ["/docker-entrypoint.sh"]
   
   EXPOSE 8000 8001 8443
   
   STOPSIGNAL SIGQUIT
   
   CMD ["kong", "docker-start"]
   ```
   
   Then I can see the Skywalking-Kong plugins in konga.  Did I install a wrong plugin?
   


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[GitHub] [skywalking] wu-sheng closed issue #6839: [KONG] Skywalking agent plugin for Kong throw an exception

Posted by GitBox <gi...@apache.org>.
wu-sheng closed issue #6839:
URL: https://github.com/apache/skywalking/issues/6839


   


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[GitHub] [skywalking] wu-sheng commented on issue #6839: [KONG] Skywalking agent plugin for Kong throw an exception

Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #6839:
URL: https://github.com/apache/skywalking/issues/6839#issuecomment-826671427


   Which codes are you using? I don't think SkyWalking has a Kong plugin release.


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[GitHub] [skywalking] dmsolr commented on issue #6839: [KONG] Skywalking agent plugin for Kong throw an exception

Posted by GitBox <gi...@apache.org>.
dmsolr commented on issue #6839:
URL: https://github.com/apache/skywalking/issues/6839#issuecomment-826714139


   I am sure Skywalking-Kong agent does not have these two configurations, `namespace` or `max_callback_time_spent`.


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[GitHub] [skywalking] dmsolr commented on issue #6839: [KONG] Skywalking agent plugin for Kong throw an exception

Posted by GitBox <gi...@apache.org>.
dmsolr commented on issue #6839:
URL: https://github.com/apache/skywalking/issues/6839#issuecomment-826743763


   Hi @kasimLZ 
   I found two unnecessary items in the configurations you provided. You need to remove `namespace` and `max_callback_time_spent`. 
   ```
    "config": {
       "service_name": "Kong Service",
       "sample_ratio": 1,
       "service_instance_name": "Kong Service Instance",
       "backend_http_uri": "http://192.168.1.101:12800"
     }
   ```
   


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