title: Sonar-Runner talks to the local database
body: <p>I am trying to understand the sonar-runner <a href="http://docs.sonarqube.org/display/SONAR/Installing+and+Configuring+SonarQube+Runner" rel="nofollow">http://docs.sonarqube.org/display/SONAR/Installing+and+Configuring+SonarQube+Runner</a>. I have a central sonar server that has a database in the same host. As expected I run the sonar-runner from my clients in numerous boxes and expect them to upload data to the sonar cube.</p>
  
  <p>My sonar-project.properties looks something like below</p>
  
  <pre><code># Required metadata
  sonar.projectKey=a:b
  sonar.projectName=b-1.0
  sonar.projectVersion=1.0
  
  # Comma-separated paths to directories with sources (required)
  sonar.sources=lib
  
  # Language
  sonar.language=py
  
  # Encoding of the source files
  sonar.sourceEncoding=UTF-8
  # Host of the sonar url
  sonar.host.url=http://myserver:9000/msde/sonar/webapp
  </code></pre>
  
  <p>I was expecting that my client would perform some analysis and upload data directly to the server using some web services meant for upload. I however see the following in my logs</p>
  
  <pre><code>10:42:00.678 INFO  - Apply project exclusions
  10:42:00.682 WARN  - H2 database should be used for evaluation purpose only
  10:42:00.682 INFO  - Create JDBC datasource for jdbc:h2:tcp://localhost/sonar
  10:42:00.755 INFO  - Initializing Hibernate
  </code></pre>
  
  <p>Question</p>
  
  <ol>
  <li>Should I be configuring the details of the database in the sonar-project.properties? I was expecting it to use some webservice from the sonar url to upload metrics but there are several problems with exposing the database details. I wanted the database to be internal to the server and not accessed by various clients. </li>
  <li>This also means that I should place the database details in various property files in several projects so the cost of changing the central database details is huge.</li>
  </ol>