[GitHub] alanblueshift commented on issue #991: Create 'fluo remove' command

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alanblueshift commented on issue #991: Create 'fluo remove' command
URL: https://github.com/apache/fluo/issues/991#issuecomment-354523513
 
 
   I started to implement this doing the same thing the _init -f_ does but without the init part. 
   But I was wondering what happen if I remove the tables and the zookeeper data without stop the oracle and the workers before. Maybe apply the same validation of the _init_ command:
   
   ```java
   if (admin.applicationRunning()) {
       System.err.println("Error - The Fluo '" + config.getApplicationName() + "' application"
           + " is already running and must be stopped before running 'fluo init'. "
           + " Aborted initialization.");
       System.exit(-1);
   }
   ```
   
   OR we could store the PID of the workers and oracle in a file like .[APP_NAME]_**woker01**.pid, .[APP_NAME]_**worker02**.pid, APP_NAME]_**oracle01**.pid.... and when a remove command it is called if a **--force** flag we could find and kill this processes too.
   
   And... If we have the PID files we could implement commands like:
   ```shell
   fluo worker -a myapp -k
   fluo worker -a myapp -k
   ```
   AND 
   ```shell
   fluo worker -a myapp --kill
   fluo worker -a myapp --kill
   ```

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