Dubbo µÄ¼¯ÈºÈÝ´íģʽ£ºFailfast Cluster

<dubbo:service cluster="failfast" />

<dubbo:reference cluster="failfast" />

public class FailfastClusterInvoker<T> extends AbstractClusterInvoker<T> {

    public FailfastClusterInvoker(Directory<T> directory) {
        super(directory);
    }

    @Override
    public Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
        checkInvokers(invokers, invocation);
        // Ñ¡Ôñµ÷ÓÃʵÀý
        Invoker<T> invoker = select(loadbalance, invocation, invokers, null);
        try {
            // Ö´Ðе÷ÓÃ
            return invoker.invoke(invocation);
        } catch (Throwable e) {
            // Èç¹ûÓÐÒì³£ÔòÖ±½ÓÅ׳öÒì³£
            if (e instanceof RpcException && ((RpcException) e).isBiz()) { // biz exception.
                throw (RpcException) e;
            }
            throw new RpcException(e instanceof RpcException ? ((RpcException) e).getCode() : 0, "Failfast invoke providers " + invoker.getUrl() + " " + loadbalance.getClass().getSimpleName() + " select from all providers " + invokers + " for service " + getInterface().getName() + " method " + invocation.getMethodName() + " on consumer " + NetUtils.getLocalHost() + " use dubbo version " + Version.getVersion() + ", but no luck to perform the invocation. Last error is: " + e.getMessage(), e.getCause() != null ? e.getCause() : e);
        }
    }
}