diecui1202 commented on issue #934: Extension of LoadBalance (a small suggestion for loadbalance policy when there's less than 2 providers) URL: https://github.com/apache/incubator-dubbo/issues/934#issuecomment-386971248 After discussing with @chickenlj , we decide to remove 140-142 lines, as the following shows: ```java private Invoker<T> doSelect(LoadBalance loadbalance, Invocation invocation, List<Invoker<T>> invokers, List<Invoker<T>> selected) throws RpcException { if (invokers == null || invokers.isEmpty()) return null; if (invokers.size() == 1) return invokers.get(0); // If we only have two invokers, use round-robin instead. 140 //if (invokers.size() == 2 && selected != null && !selected.isEmpty()) { 141 // return selected.get(0) == invokers.get(0) ? invokers.get(1) : invokers.get(0); 142 //} if (loadbalance == null) { loadbalance = ExtensionLoader.getExtensionLoader(LoadBalance.class).getExtension(Constants.DEFAULT_LOADBALANCE); } Invoker<T> invoker = loadbalance.select(invokers, getUrl(), invocation); //If the `invoker` is in the `selected` or invoker is unavailable && availablecheck is true, reselect. if ((selected != null && selected.contains(invoker)) ``` Because the `selected` param is not null only when retry or in ForkingClusterInvoker. And the reselect function will finally select a available invoker. So these 3 lines code seems unnecessary.
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