公开(公告)号：US20110270908A1

公开(公告)日：2011-11-03

申请号：US12768750

申请日：2010-04-28

申请人： Randall Kern ,  Parveen Patel ,  Lihua Yuan ,  Anil K. Ruia ,  Won Suk Yoo

发明人： Randall Kern ,  Parveen Patel ,  Lihua Yuan ,  Anil K. Ruia ,  Won Suk Yoo

IPC分类号： G06F15/16

CPC分类号： H04L45/24

摘要： Architecture that facilitates the capture of connection state of a connection established between a client and an intermediate server and forwards the state to one or more target servers. A software component at the target server (as well as the intermediate server) uses this connection state to reply back to the client directly, thereby bypassing the intermediate server. All packets from the client related to the request are received at the intermediate server and then forwarded to the target server. The migration can be accomplished without any change in the client operating system and client applications, without assistance from a gateway device such as a load balancer or the network, without duplication of all packets between the multiple servers, and without changes to the transport layer stack of the intermediate and target servers.

摘要翻译： 架构，便于捕获在客户端和中间服务器之间建立的连接的连接状态，并将状态转发到一个或多个目标服务器。 目标服务器（以及中间服务器）上的软件组件使用此连接状态直接回复客户端，从而绕过中间服务器。 来自客户端的与请求相关的所有数据包都在中间服务器处接收，然后转发到目标服务器。 无需客户端操作系统和客户端应用程序的任何更改即可完成迁移，无需网关设备（如负载平衡器或网络）进行协助，而不会在多个服务器之间复制所有数据包，而无需更改传输层堆栈 的中间和目标服务器。

公开(公告)号：US08046432B2

公开(公告)日：2011-10-25

申请号：US12425395

申请日：2009-04-17

申请人： Won Suk Yoo ,  Anil K. Ruia ,  Himanshu Patel ,  John A. Bocharov ,  Ning Lin

发明人： Won Suk Yoo ,  Anil K. Ruia ,  Himanshu Patel ,  John A. Bocharov ,  Ning Lin

IPC分类号： G06F15/16 ,  G06F15/167

CPC分类号： H04L67/2842 ,  H04L67/2833 ,  H04L67/2885

摘要： A live caching system is described herein that reduces the burden on origin servers for serving live content. In response to receiving a first request that results in a cache miss, the system forwards the first request to the next tier while “holding” other requests for the same content. If the system receives a second request while the first request is pending, the system will recognize that a similar request is outstanding and hold the second request by not forwarding the request to the origin server. After the response to the first request arrives from the next tier, the system shares the response with other held requests. Thus, the live caching system allows a content provider to prepare for very large events by adding more cache hardware and building out a cache server network rather than by increasing the capacity of the origin server.

摘要翻译： 这里描述了实时缓存系统，其减少了用于服务实况内容的原始服务器的负担。 响应于接收到导致高速缓存未命中的第一请求，系统将第一请求转发到下一层，同时“保持”其他对相同内容的请求。 如果系统在第一个请求未决时接收到第二个请求，则系统将识别出类似的请求未完成，并且通过不将请求转发给原始服务器来保持第二个请求。 在第一个请求的响应从下一个层次到达之后，系统与其他持有的请求共享响应。 因此，实时缓存系统允许内容提供商通过添加更多的高速缓存硬件和构建缓存服务器网络来准备非常大的事件，而不是增加源服务器的容量。

公开(公告)号：US20110131341A1

公开(公告)日：2011-06-02

申请号：US12626957

申请日：2009-11-30

申请人： Won Suk Yoo ,  Venkat Raman Don ,  Anil K. Ruia ,  Ning Lin ,  Chittaranjan Pattekar

发明人： Won Suk Yoo ,  Venkat Raman Don ,  Anil K. Ruia ,  Ning Lin ,  Chittaranjan Pattekar

IPC分类号： G06F15/16

CPC分类号： G06F16/9574

摘要： A selective pre-caching system reduces the amount of content cached at cache proxies by limiting the cached content to that content that a particular cache proxy is responsible for caching. This can substantially reduce the content stored on each cache proxy and reduces the amount of resources consumed for pre-caching in preparation for a particular event. The cache proxy receives a list of content items that and an indication of the topology of the cache network. The cache proxy uses the received topology to determine the content items in the received list of content items that the cache proxy is responsible for caching. The cache proxy then retrieves the determined content items so that they are available in the cache before client requests are received.

摘要翻译： 选择性预缓存系统通过将缓存内容限制为特定缓存代理负责缓存的内容来减少缓存代理缓存的内容量。 这可以显着减少存储在每个缓存代理上的内容，并且减少为预先缓存而消耗的资源量，以准备特定事件。 高速缓存代理接收内容项的列表以及高速缓存网络拓扑的指示。 缓存代理使用接收到的拓扑来确定缓存代理负责缓存的内容项的接收列表中的内容项。 缓存代理然后检索确定的内容项，使得它们在接收到客户端请求之前在高速缓存中可用。

公开(公告)号：US09514243B2

公开(公告)日：2016-12-06

申请号：US12629904

申请日：2009-12-03

申请人： Won Suk Yoo ,  Venkat Raman Don ,  Anil K. Ruia ,  Ning Lin ,  Chittaranjan Pattekar

发明人： Won Suk Yoo ,  Venkat Raman Don ,  Anil K. Ruia ,  Ning Lin ,  Chittaranjan Pattekar

IPC分类号： G06F17/30

CPC分类号： G06F17/30902

摘要： An intelligent caching system is described herein that intelligently consolidates the name-value pairs in content requests containing query strings so that only substantially non-redundant responses are cached, thereby saving cache proxy resources. The intelligent caching system determines which name-value pairs in the query string can affect the redundancy of the content response and which name-value pairs can be ignored. The intelligent caching system organically builds the list of relevant name-value pairs by relying on a custom response header or other indication from the content server. Thus, the intelligent caching system results in fewer requests to the content server as well as fewer objects in the cache.

摘要翻译： 本文描述了一种智能缓存系统，其智能地整合包含查询字符串的内容请求中的名称 - 值对，使得仅基本上非冗余的响应被缓存，从而节省缓存代理资源。 智能缓存系统确定查询字符串中哪些名称 - 值对可以影响内容响应的冗余，哪些名称 - 值对可以被忽略。 智能缓存系统通过依赖于内容服务器的自定义响应头或其他指示来有机地构建相关名称 - 值对的列表。 因此，智能缓存系统导致对内容服务器的请求减少以及缓存中的较少对象。

公开(公告)号：US20110238733A1

公开(公告)日：2011-09-29

申请号：US12730271

申请日：2010-03-24

申请人： Won Suk Yoo ,  Wade A. Hilmo ,  Anil K. Ruia ,  Chittaranjan Pattekar ,  Venkat Raman Don

发明人： Won Suk Yoo ,  Wade A. Hilmo ,  Anil K. Ruia ,  Chittaranjan Pattekar ,  Venkat Raman Don

IPC分类号： G06F15/16 ,  G06F15/177 ,  G06F15/173

CPC分类号： G06F11/008 ,  H04L43/04 ,  H04L43/06 ,  H04L43/08

摘要： Requests for content can be received from clients and forwarded to servers, and responses to the requests can be received from the servers and forwarded to the clients. A health model can also be maintained. The health model can be based on information in the responses and possibly also on information in the requests, and the health model can indicate the health of the servers in responding to different types of requests. The health model may differentiate between health in responding to requests with different features in URLs of the requests, such as different namespaces and/or different extensions.

摘要翻译： 可以从客户端接收内容请求并转发到服务器，并且可以从服务器接收对请求的响应并转发给客户端。 还可以保持健康模式。 健康模型可以基于响应中的信息，也可以基于请求中的信息，健康模型可以指示服务器在响应不同类型的请求时的健康状况。 健康模型可以区分健康状况以响应请求的URL中具有不同特征的请求，例如不同的命名空间和/或不同的扩展。

公开(公告)号：US20100274885A1

公开(公告)日：2010-10-28

申请号：US12427774

申请日：2009-04-22

申请人： Won Suk Yoo ,  Anil K. Ruia ,  Himanshu Patel ,  Ning Lin

发明人： Won Suk Yoo ,  Anil K. Ruia ,  Himanshu Patel ,  Ning Lin

IPC分类号： G06F15/16 ,  G06F15/173

CPC分类号： H04L67/1008 ,  H04L67/1002

摘要： A load balancing system is described herein that proactively balances client requests among multiple destination servers using information about anticipated loads or events on each destination server to inform the load balancing decision. The system detects one or more upcoming events that will affect the performance and/or capacity for handling requests of a destination server. Upon detecting the event, the system informs the load balancer to drain connections around the time of the event. Next, the event occurs on the destination server, and the system detects when the event is complete. In response, the system informs the load balancer to restore connections to the destination server. In this way, the system is able to redirect clients to other available destination servers before the tasks occur. Thus, the load balancing system provides more efficient routing of client requests and improves responsiveness.

摘要翻译： 这里描述了一种负载平衡系统，它使用关于每个目的地服务器上的预期负载或事件的信息来主动平衡多个目的地服务器之间的客户端请求以通知负载平衡决定。 系统检测将影响目标服务器请求的性能和/或容量的一个或多个即将到来的事件。 在检测到事件时，系统通知负载平衡器在事件发生的时间内排除连接。 接下来，事件发生在目标服务器上，系统检测事件何时完成。 作为响应，系统通知负载均衡器恢复与目标服务器的连接。 这样，在任务发生之前，系统能够将客户端重定向到其他可用的目标服务器。 因此，负载平衡系统提供更有效的客户端请求路由并提高响应能力。

公开(公告)号：US20100268789A1

公开(公告)日：2010-10-21

申请号：US12425395

申请日：2009-04-17

申请人： Won Suk Yoo ,  Anil K. Ruia ,  Himanshu Patel ,  John A. Bocharov ,  Ning Lin

发明人： Won Suk Yoo ,  Anil K. Ruia ,  Himanshu Patel ,  John A. Bocharov ,  Ning Lin

IPC分类号： G06F15/167

CPC分类号： H04L67/2842 ,  H04L67/2833 ,  H04L67/2885

摘要： A live caching system is described herein that reduces the burden on origin servers for serving live content. In response to receiving a first request that results in a cache miss, the system forwards the first request to the next tier while “holding” other requests for the same content. If the system receives a second request while the first request is pending, the system will recognize that a similar request is outstanding and hold the second request by not forwarding the request to the origin server. After the response to the first request arrives from the next tier, the system shares the response with other held requests. Thus, the live caching system allows a content provider to prepare for very large events by adding more cache hardware and building out a cache server network rather than by increasing the capacity of the origin server.

摘要翻译： 这里描述了实时缓存系统，其减少了用于服务实况内容的原始服务器的负担。 响应于接收到导致高速缓存未命中的第一请求，系统将第一请求转发到下一层，同时“保持”其他对相同内容的请求。 如果系统在第一个请求未决时接收到第二个请求，则系统将识别出类似的请求未完成，并且通过不将请求转发给原始服务器来保持第二个请求。 在第一个请求的响应从下一个层次到达之后，系统与其他持有的请求共享响应。 因此，实时缓存系统允许内容提供商通过添加更多的高速缓存硬件和构建缓存服务器网络来准备非常大的事件，而不是增加源服务器的容量。

公开(公告)号：US08738902B2

公开(公告)日：2014-05-27

申请号：US13359507

申请日：2012-01-27

申请人： Won Suk Yoo ,  Eok Kim ,  Jenny Lawrance ,  Aniello Scotto Di Marco ,  Yamini Jagadeesan ,  Wade Hilmo

发明人： Won Suk Yoo ,  Eok Kim ,  Jenny Lawrance ,  Aniello Scotto Di Marco ,  Yamini Jagadeesan ,  Wade Hilmo

IPC分类号： H04L29/06

CPC分类号： H04L61/15 ,  H04L61/6063 ,  H04L63/0823 ,  H04L63/166 ,  H04L67/02

摘要： Embodiments disclose a reverse lookup using an IP:Port-to-hostname table to identify a hostname when only an IP address and port is present in an SSL hello connection, which may occur, for example, when a non-SNI-capable client initiates the SSL hello. Once the hostname is successfully looked up, a naming convention is used to simplify the management and identification of SSL certificates. Different types of SSL certificates are supported. Multiple hostname matches may be associated with a given IP address and port in the IP:Port-to-hostname table. In such case, the first-matching hostname is always used with the naming convention to identify related SSL certificates. The naming convention is applied in such a way that it will first look for the most matching file name to the least matching file name.

摘要翻译： 实施例公开了使用IP：端口到主机名表的反向查找，以便在SSL hello连接中仅存在IP地址和端口时识别主机名，例如，当非SNI能力的客户端发起时 SSL你好。 一旦主机名成功查找，使用命名约定来简化SSL证书的管理和标识。 支持不同类型的SSL证书。 多个主机名匹配可能与IP：端口到主机名表中的给定IP地址和端口相关联。 在这种情况下，首选匹配的主机名始终与命名约定一起使用，以标识相关的SSL证书。 命名约定以这样一种方式应用，它将首先查找与匹配最少的文件名匹配的最匹配的文件名。

公开(公告)号：US20120203866A1

公开(公告)日：2012-08-09

申请号：US13022527

申请日：2011-02-07

申请人： Won Suk Yoo ,  Nick Holt ,  Daniel Vasquez Lopez ,  Aniello Scotto Di Marco

发明人： Won Suk Yoo ,  Nick Holt ,  Daniel Vasquez Lopez ,  Aniello Scotto Di Marco

IPC分类号： G06F15/16

CPC分类号： H04L67/2842 ,  H04L45/44 ,  H04L45/58 ,  H04L67/1021 ,  H04L67/288 ,  H04L67/2885 ,  H04L67/327

摘要： A distributed caching hierarchy that includes multiple edge routing servers, at least some of which receiving content requests from client computing systems via a load balancer. When receiving a content request, an edge routing server identifies which of the edge caching servers the requested content would be in if the requested content were to be cached within the edge caching servers, and distributes the content request to the identified edge caching server in a deterministic and predictable manner to increase the likelihood of increasing a cache-hit ratio.

摘要翻译： 分布式缓存层次结构，包括多个边缘路由服务器，其中至少一些路由服务器通过负载平衡器从客户端计算系统接收内容请求。 当接收到内容请求时，如果所请求的内容被缓存在边缘高速缓存服务器内，则边缘路由服务器识别所请求的内容将处于哪个边缘高速缓存服务器，并且将内容请求分发到所识别的边缘缓存服务器 确定性和可预测的方式来增加增加缓存命中率的可能性。

公开(公告)号：US20120185557A1

公开(公告)日：2012-07-19

申请号：US13006694

申请日：2011-01-14

申请人： Aniello Scotto Di Marco ,  Won Suk Yoo ,  Daniel Vasquez Lopez ,  Jaroslav Dunajsky

发明人： Aniello Scotto Di Marco ,  Won Suk Yoo ,  Daniel Vasquez Lopez ,  Jaroslav Dunajsky

IPC分类号： G06F15/16

CPC分类号： H04L67/2842 ,  H04L67/2885

摘要： Servicing resource requests. A method includes at a first caching node, receiving a request for a first resource. The method further includes at the first caching node, determining at least one of health or load information of the first caching node. The method further includes generating a response to the request for the first resource, including generating a header to the response. The header is a custom header. The custom header includes at least one of health or load information. The method further includes sending the response to the request including sending the custom header with the at least one of health or load information.

摘要翻译： 维护资源请求。 一种方法包括在第一高速缓存节点处接收对第一资源的请求。 该方法还包括在第一高速缓存节点处，确定第一高速缓存节点的健康或负载信息中的至少一个。 该方法还包括生成对第一资源的请求的响应，包括生成响应的报头。 标题是自定义标题。 自定义标题包括至少一个健康或负载信息。 该方法还包括发送对请求的响应，包括使用健康或负载信息中的至少一个发送自定义报头。