in src/main/java/org/apache/dubbo/proxy/metadata/impl/ZookeeperMetadataCollector.java [34:42]
public void init() {
String group = url.getParameter(Constants.GROUP_KEY, DEFAULT_ROOT);
if (!group.startsWith(Constants.PATH_SEPARATOR)) {
group = Constants.PATH_SEPARATOR + group;
}
root = group;
client = CuratorFrameworkFactory.newClient(url.getAddress(), new ExponentialBackoffRetry(1000, 3));
client.start();
}