[GitHub] [trafficcontrol] zrhoffman edited a comment on pull request #6532: CDN-in-a-Box for Developers

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zrhoffman edited a comment on pull request #6532:
URL: https://github.com/apache/trafficcontrol/pull/6532#issuecomment-1027131794


   > I had done that, and it would start but it was not servicing any HTTP or DNS requests I threw at it.
   
   That is normal if it cannot fetch the CrConfig yet, it only serves HTTP and DNS responses *after* that point. Once the  comments I have made on #6532 are addressed, TR prints only this message repeatedly:
   
   ```java
   trafficcontrol-trafficrouter-1  | 17:43:00.361 [pool-3-thread-1] ERROR org.apache.traffic_control.traffic_router.core.secure.CertificatesClient - No traffic ops hostname yet!
   ```
   which makes sense, since TM does not serve a CrConfig.
   
   ```
   trafficrouter:/# curl -v trafficmonitor/publish/CrConfig;
   *   Trying 172.25.0.4:80...
   * Connected to trafficmonitor (172.25.0.4) port 80 (#0)
   > GET /publish/CrConfig HTTP/1.1
   > Host: trafficmonitor
   > User-Agent: curl/7.80.0
   > Accept: */*
   >
   * Mark bundle as not supporting multiuse
   < HTTP/1.1 503 Service Unavailable
   < Date: Tue, 01 Feb 2022 17:59:21 GMT
   < Content-Length: 19
   < Content-Type: text/plain; charset=utf-8
   <
   * Connection #0 to host trafficmonitor left intact
   Service Unavailable
   ```
   
   Corresponding message from Traffic Monitor logs:
   
   ```go
   trafficcontrol-trafficmonitor-1  | ERROR: datareq.go:161: 2022-02-01T18:00:21.366963347Z: Request Error: /publish/CrConfig: service still starting, some caches unpolled: map[]
   ```
   
   So, the key to getting TR to serve HTTP and DNS responses is to get Traffic Monitor to serve the CrConfig. The TR piece works fine with the suggested changes.


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