df.write.mode("append").jdbc("jdbc:mysql://ip:port/database", "table_name", properties)

spark-submit --class MY_MAIN_CLASS
  --master yarn-client
  --jars /path/to/mysql-connector-java-5.0.8-bin.jar
  --driver-class-path /path/to/mysql-connector-java-5.0.8-bin.jar
  MY_APPLICATION.jar

spark-submit --class MY_MAIN_CLASS
  --master yarn-cluster
  --jars /path/to/mysql-connector-java-5.0.8-bin.jar
  --driver-class-path /path/to/mysql-connector-java-5.0.8-bin.jar
  MY_APPLICATION.jar

spark-submit --class MY_MAIN_CLASS
  --master yarn-cluster
  --jars /path/to/mysql-connector-java-5.0.8-bin.jar
  --driver-class-path /path/to/mysql-connector-java-5.0.8-bin.jar
  --conf spark.executor.extraClassPath=/path/to/mysql-connector-java-5.0.8-bin.jar
  MY_APPLICATION.jar

--jars $(echo ./lib/*.jar | tr ' ' ',')

Driver driver = new Driver();