[GitHub] [cloudstack] MoeRT09 edited a comment on issue #4733: Error 404 - Hosts

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

MoeRT09 edited a comment on issue #4733:
URL: https://github.com/apache/cloudstack/issues/4733#issuecomment-806076134


   The error always was triggered by the UI requesting the API endpoint `https://<host>/client/api/?listall=true&type=routing&page=1&pagesize=20&command=listHostsMetrics&response=json`, with the response mentioned [here](https://github.com/apache/cloudstack/issues/4733#issuecomment-804967083).
   
   The request should return something like this:
   ```json
   {
     "listhostsmetricsresponse": {
       "count": 1,
       "host": [
         {
           "powerstate": "Disabled",
           "instances": "0 / 0",
           "cputotalghz": "25.60 Ghz (x 1.0)",
           "cpuusedghz": "0.00 Ghz",
           "cpuallocatedghz": "0.00 Ghz",
           "cpuloadaverage": 0.02,
           "memorytotalgb": "124.81 GB (x 1.0)",
           "memoryusedgb": "1.04 GB",
           "memoryallocatedgb": "0.00 GB",
           "networkread": "0.43 GB",
           "networkwrite": "0.00 GB",
           "cputhreshold": false,
           "cpudisablethreshold": false,
           "cpuallocatedthreshold": false,
           "cpuallocateddisablethreshold": false,
           "memorythreshold": false,
           "memorydisablethreshold": false,
           "memoryallocatedthreshold": false,
           "memoryallocateddisablethreshold": false,
         //...
         }
       ]
     }
   }
   ```
   
   As we never saw it working with a non english locale, I can only assume, that somewhere on one of those numbers, it gets formatted with the system number scheme. Looking at the numbers of the "For input string: "*,**" error, the `"cpuloadaverage"` property looks most suspicious for me as it fits the number scheme and is the only decimal number not enclosed in hyphens, which would definitely cause JSON parsing errors, if the period were a comma.  
   I remember seeing the host in the UI once shortly after it was added. Probably because the load average was `0` at this point.
   
   As a workaround, as already mentioned, the system language of the host running the Cloudstack Manager  should be set to `en_US.UTF-8`. On Ubuntu this can be accomplished by running `dpkg-reconfigure locales` and selecting `en_US.UTF-8` as default. Afterwards, the system should be restarted.
   


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