haiyang1985 opened a new issue #1950: How to set classifier for provider url? URL: https://github.com/apache/incubator-dubbo/issues/1950 Hi, To support provider dynamic configuration, override url will be notified to provider(RegistryProtocol). AbstractRegistry will firstly check override url's classifier match with provider url's classifier or not. **What is CLASSIFIER_KEY stands for? And, how can i configure it for the provider?** **The AbstractRegistry will check the url match or not.** protected void notify(List<URL> urls) { ... for (Map.Entry<URL, Set<NotifyListener>> entry : getSubscribed().entrySet()) { if (!UrlUtils.isMatch(url, urls.get(0))) { continue; } ... } } **The classifier is one of the matcher for UrlUtils.java.** public static boolean isMatch(URL consumerUrl, URL providerUrl) { String consumerClassifier = consumerUrl.getParameter(Constants.CLASSIFIER_KEY, Constants.ANY_VALUE); String providerClassifier = providerUrl.getParameter(Constants.CLASSIFIER_KEY, Constants.ANY_VALUE); ... } I cannot find the classifier from the ServiceConfig/ProviderConfig. Also, only UrlUtils.java refers the CLASSIFIER_KEY constants key. Where and how to set it for provider url? Thanks for any help.
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