anchor.diff:  cf create-service p_mysql 100mb my_mysql
   ```
   
  +An RDBMS is used to persist Data Flow state, such as stream definitions and deployment ids.
  +It can also be used for tasks to persist execution history.
  +
   === Download the Spring Cloud Data Flow Server and Shell apps:
   
   [subs=attributes]
  
positive.code: 
  Old App Logs:
  
  [source,bash]
  ----
  2016-08-08T17:11:08.94-0700 [APP/0]      OUT 2016-08-09 00:11:08.942  INFO 19 --- [ foo.time.foo-1] log.sink                                 : 08/09/16 00:11:08
  2016-08-08T17:11:10.95-0700 [APP/0]      OUT 2016-08-09 00:11:10.954  INFO 19 --- [ foo.time.foo-1] log.sink                                 : 08/09/16 00:11:10
  
negative.code: the application has started.
  
  Now post some data. The URL will be unique to your deployment, the following is just an example
  [source]
  ----
  dataflow:> http post --target http://dataflow-nonconcentrative-knar-httptest-http.cfapps.io --data "hello world"
  ----
  