private boolean isHystrixEnabled(AbstractInterfaceConfig config) {
        String consumerHystrixEnabled = config.getParameter(HystrixConstants.SOFA_HYSTRIX_ENABLED);
        if (StringUtils.isNotBlank(consumerHystrixEnabled)) {
            return Boolean.valueOf(consumerHystrixEnabled);
        }
        return RpcConfigs.getOrDefaultValue(HystrixConstants.SOFA_HYSTRIX_ENABLED, false);
    }
Hystrix instrumentation

@author <a href=mailto:scienjus@gmail.com>ScienJus</a>
fault/fault-hystrix/src/main/java/com/alipay/sofa/rpc/hystrix/HystrixFilter.java