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    • 3. 发明申请
    • Sending routing data based on times that servers joined a cluster
    • 根据服务器加入群集的时间发送路由数据
    • US20070112963A1
    • 2007-05-17
    • US11282029
    • 2005-11-17
    • Pernell DykesWilliam NewportJinmei ShenKevin SutterHao Wang
    • Pernell DykesWilliam NewportJinmei ShenKevin SutterHao Wang
    • G06F15/16
    • H04L45/54H04L45/02H04L45/46H04L69/24
    • A method, apparatus, system, and signal-bearing medium that, in an embodiment, send a broadcast message to a cluster of servers receive a point-to-point message from a coordinating server of the cluster, where the coordinating server joined the cluster before all other servers in the cluster. The point-to-point message includes routing data regarding all of the servers in the cluster. In an embodiment, the broadcast message includes a record that includes an identification of a new server, resource data regarding the new server, and a time that the new server joins the cluster, and the servers in the cluster add the record to the routing data and send a request to the new server via the record. In another embodiment, the broadcast message includes records for all servers in a second cluster, and the new server sends the routing data to the servers in the second cluster. If a server leaves the cluster, its record is removed. In this way, a cluster can respond to servers dynamically joining and leaving the cluster while reducing network traffic.
    • 在一个实施例中,向服务器集群发送广播消息的方法,装置,系统和信号承载介质从集群的协调服务器接收点对点消息,其中协调服务器加入集群 在群集中的所有其他服务器之前。 点对点消息包括关于集群中所有服务器的路由数据。 在一个实施例中,广播消息包括包括新服务器的标识,关于新服务器的资源数据和新服务器加入集群的时间的记录,并且集群中的服务器将记录添加到路由数据 并通过记录向新服务器发送请求。 在另一实施例中,广播消息包括第二集群中所有服务器的记录,并且新服务器将路由数据发送到第二集群中的服务器。 如果服务器离开集群,则其记录将被删除。 以这种方式,集群可以响应服务器动态加入和离开集群,同时减少网络流量。
    • 4. 发明申请
    • Application of attribute-set policies to managed resources in a distributed computing system
    • 属性集策略应用于分布式计算系统中的托管资源
    • US20060195560A1
    • 2006-08-31
    • US11068338
    • 2005-02-28
    • William Newport
    • William Newport
    • G06F15/173
    • H04L41/0893H04L67/10
    • An apparatus, program product and method utilize sets of attributes respectively associated with managed resources and policies to match managed resources with individual policies. Multiple managed resources are permitted to be matched with a specific policy, such that the policy applies to all matching managed resources. Furthermore, by providing multiple attributes upon which to match, policies are capable of being defined with varying degrees of specificity, enabling administrators to utilize more generic policies for certain types of managed resources, with more specific policies used to override certain managed resources whenever needed.
    • 一种装置,程序产品和方法利用分配与被管理的资源和策略相关联的属性集,以将被管理的资源与各个策略相匹配。 允许多个托管资源与特定策略进行匹配,以便策略适用于所有匹配的受管资源。 此外,通过提供多个属性来匹配,策略能够以不同程度的特定性进行定义,从而使管理员能够针对某些类型的托管资源使用更通用的策略,而在特定管理资源需要时,更具体的策略用于覆盖某些托管资源。
    • 5. 发明申请
    • Application of resource-dependent policies to managed resources in a distributed computing system
    • 将资源依赖策略应用于分布式计算系统中的托管资源
    • US20060195448A1
    • 2006-08-31
    • US11068262
    • 2005-02-28
    • William Newport
    • William Newport
    • G06F17/30
    • H04L41/12G06F11/2023G06F11/2046H04L41/06H04L43/0817
    • An apparatus, program product and method enable program code that manages a managed resource, e.g., a high availability manager, to receive status information associated with an externally-managed resource such that the program code can properly apply an activation policy to the managed resource in a manner that is consistent with any requirements placed upon that resource by the externally-managed resource. Where, for example, a managed resource is required to be collocated on the same node or computer as an externally-managed resource, the status information may include location information that identifies where the externally-managed resource is currently active, such that the program code can activate the managed resource on the same node as the externally-managed resource.
    • 一种装置,程序产品和方法使得能够管理例如高可用性管理器的被管理资源的程序代码来接收与外部管理的资源相关联的状态信息,使得程序代码可以将激活策略适当地应用于被管理资源 这种方式与外部管理的资源对该资源的任何要求一致。 例如,如果被管理资源需要与外部管理的资源并置在同一节点或计算机上,则状态信息可以包括标识外部管理的资源当前处于活动状态的位置信息,使得程序代码 可以激活与外部管理资源相同的节点上的托管资源。
    • 6. 发明申请
    • Apparatus and method for handling backend failover in an application server
    • 在应用服务器中处理后端故障切换的装置和方法
    • US20060173866A1
    • 2006-08-03
    • US11050293
    • 2005-02-03
    • William Newport
    • William Newport
    • G06F7/00
    • H04L67/42H04L69/14H04L69/28H04L69/40
    • An application server includes a connection pool that specifies a number of allowable connections, and includes a backend failure detection mechanism and a backend failure recovery mechanism. When the backend failure detection mechanism detects that the backend fails, applications waiting on the hung connections may be notified of the backend failure. The backend failure detection mechanism will then detect when the backend recovers and becomes available once again. Once the backend is available again, the backend failure recovery mechanism increases the number of connections in the connection pool to compensate for the hung connections. As each hung connection is timed out using a network timeout mechanism, the number of allowable connections is reduced. Eventually all of the hung connections will time out, with the result being that the connection pool will contain the same specified number of allowable connections it originally had before the backend failed.
    • 应用服务器包括指定可允许连接数的连接池,并且包括后端故障检测机制和后端故障恢复机制。 当后端故障检测机构检测到后端发生故障时,等待挂起连接的应用可能会被通知后端故障。 后端故障检测机制随后将检测后端恢复并再次可用。 一旦后端再次可用,后端故障恢复机制增加了连接池中的连接数量,以补偿挂起的连接。 由于每个挂起连接都使用网络超时机制超时,所以允许的连接数减少。 最终所有挂起的连接都将超时,结果是连接池将包含原始在后端出现故障之前所允许的连接数。
    • 9. 发明申请
    • Session replication
    • 会话复制
    • US20070027896A1
    • 2007-02-01
    • US11191416
    • 2005-07-28
    • William NewportJohn Stecher
    • William NewportJohn Stecher
    • G06F7/00
    • H04L67/1095H04L67/14
    • Methods, apparatuses, and products are disclosed for session replication that include enqueueing sessions on a replication queue and flushing enqueued sessions, from the replication queue to a replication peer, in dependence upon flushing criteria, for storage on a replication medium. The replication medium may be non-volatile storage in a database or remote random access memory. Flushing may be carried out periodically or in dependence upon replication queue depth. Flushing may include aggregating sessions from the replication queue for transmission to the replication peer.
    • 公开了用于会话复制的方法,装置和产品,其包括在复制队列上的入队会话和从复制队列到复制对等体的刷新会话,根据冲洗标准来存储在复制介质上。 复制介质可以是数据库或远程随机存取存储器中的非易失性存储器。 刷新可以周期性地或依赖于复制队列深度来执行。 刷新可能包括从复制队列聚合会话以传输到复制对等体。