public static Executor initExecutor(String executorName, ServerConfig serverConfig) {
        Executor executor = ExtensionLoaderFactory.getExtensionLoader(SofaExecutorFactory.class)
            .getExtension(serverConfig.getThreadPoolType())
            .createExecutor(executorName, serverConfig);
        return executor;
    }
Business pool 

@author <a href=mailto:zhanggeng.zg@antfin.com>GengZhang</a>
core/api/src/main/java/com/alipay/sofa/rpc/server/BusinessPool.java