带有Apache连接器的泽西客户端池（性能）

Question

我们有一个jersey客户端，具有基本配置：

public class HttpClient {

    private transient final WebTarget target;

    public HttpClient(final String host, final int port, final String path, final int requestTimeout) {
        final URI uri = UriBuilder.fromUri("http://" + host).port(port).build();
        final Client client = ClientBuilder.newClient();

        client.property(ClientProperties.READ_TIMEOUT, requestTimeout);
        target = client.target(uri).path(path);
    }

    public byte[] makeRequest(final byte[] request) throws HsmException {
        try {
            return target.request()
                    .accept(MediaType.APPLICATION_OCTET_STREAM)
                    .post(Entity.entity(request, MediaType.APPLICATION_OCTET_STREAM), byte[].class);
        }
        catch (Exception e) {
            // Box JAX-RS exceptions as they get weirdly handled by the outer Jersey layer.
            throw new Exception("Could not make request: " + e.getMessage(), e);
        }
    }

}

现在，有了该客户，我们每秒设法处理约900个请求。因此，为了获得更好的结果，我考虑过使用带有jersey连接器的Apache Http客户端来实现池化，如下所示：

public class HttpClient {
    private transient final WebTarget target;

    public HttpClient(final String host, final int port, final String path, final int requestTimeout) {
        final ClientConfig clientConfig = new ClientConfig();
        clientConfig.property(ClientProperties.READ_TIMEOUT, requestTimeout);
        clientConfig.property(ClientProperties.CONNECT_TIMEOUT, 500);

        final PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
        connectionManager.setMaxTotal(150);
        connectionManager.setDefaultMaxPerRoute(40);
        connectionManager.setMaxPerRoute(new HttpRoute(new HttpHost(host)), 80);

        clientConfig.property(ApacheClientProperties.CONNECTION_MANAGER, connectionManager);

        final ApacheConnectorProvider connector = new ApacheConnectorProvider();
        clientConfig.connectorProvider(connector);

        final URI uri = UriBuilder.fromUri("http://" + host).port(port).build();
        final Client client = ClientBuilder.newClient(clientConfig);
        target = client.target(uri).path(path);
    }

    @Override
    public byte[] makeRequest(final byte[] request) throws HsmException {
        try {
            return target.request()
                    .accept(MediaType.APPLICATION_OCTET_STREAM)
                    .post(Entity.entity(command, MediaType.APPLICATION_OCTET_STREAM), byte[].class);
        }
        catch (Exception e) {
            // Box JAX-RS exceptions as they get weirdly handled by the outer Jersey layer.
            throw new Exception("Could not make request:" + e.getMessage(), e);
        }
    }
}

并且结果完全相同，每秒大约有900个请求。

我不受CPU，内存，磁盘等的限制。我找不到瓶颈。设置连接管理器时，我测试了多个值，但结果完全相同。

我想念什么吗？我还有其他参数吗？我使用错误的方式吗？

Answer 1

您可以尝试使用httpasyncclient尝试HTTP连接池。

httpclient将线程阻塞I / O用于连接池，这意味着负责发送HTTP请求的线程也负责处理HTTP响应。同时，线程在套接字上仍然处于阻塞状态。

相反，httpasyncclient是基于Java NIO（非阻塞）I / O模型的完全异步HTTP客户端处理程序，它允许库用户从非阻塞HTTP连接流式传输消息内容。