deployer.updateStorageAuthConf(Sets.newHashSet("127.0.0.1", "127.0.0.2"));
File confDir = new File(deploymentOptions.getBasedir(), "conf");
File cassandraJvmPropsFile = new File(confDir, "cassandra-jvm.properties");
PropertiesFileUpdate propertiesUpdater = new PropertiesFileUpdate(cassandraJvmPropsFile.getAbsolutePath());
Properties properties = propertiesUpdater.loadExistingProperties();
String jvmOpts = properties.getProperty("JVM_OPTS");
jvmOpts = jvmOpts.substring(0, jvmOpts.lastIndexOf("\""));
jvmOpts = jvmOpts + " -Dcassandra.ring_delay_ms=2000\"";
properties.setProperty("JVM_OPTS", jvmOpts);