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1. 发明授权

US07814065B2 Affinity-based recovery/failover in a cluster environment 有权
标题翻译：集群环境中基于关联度的恢复/故障转移
公开(公告)号：US07814065B2
公开(公告)日：2010-10-12
申请号：US11205529
申请日：2005-08-16
申请人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
发明人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
IPC分类号： G06F17/30
CPC分类号： G06F11/2046 , G06F11/203 , G06F11/2033 , G06F11/2035 , G06F11/30 , G06F2201/825 , Y10S707/99939 , Y10S707/99942 , Y10S707/99953
摘要： Techniques are provided for responding to the termination of a node by selecting another node, and assigning to the selected node the affinity relationships that existed between the terminated node and one or more objects. The resources that belong to the objects involved in the affinity relationships are remastered to the selected node. The selected node then performs recovery of the resources that had been opened by the terminated node and/or serves as a failover node to execute the transactions that had been executing on the terminated node.
摘要翻译：提供了通过选择另一个节点来响应终止节点的技术，并且向所选节点分配存在于终止的节点与一个或多个对象之间的亲和度关系。属于与亲和力关系相关的对象的资源将重新分配给所选节点。所选择的节点然后执行已被终止的节点打开的资源的恢复和/或用作故障切换节点来执行在终止的节点上执行的事务。

2. 发明授权

US07454422B2 Optimization for transaction failover in a multi-node system environment where objects' mastership is based on access patterns 有权
标题翻译：在多节点系统环境中优化事务故障切换，其中对象的主管基于访问模式
公开(公告)号：US07454422B2
公开(公告)日：2008-11-18
申请号：US11282327
申请日：2005-11-18
申请人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
发明人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G06F11/2046 , G06F11/203 , G06F11/2033 , G06F11/2035 , G06F11/30 , G06F2201/825 , Y10S707/99939 , Y10S707/99942 , Y10S707/99953
摘要： Techniques are provided for responding to the termination of a node executing one or more transactions by selecting another node to complete the transactions, and assigning to the selected node the affinity relationships that existed between the terminated node and the objects being accessed by said transactions.
摘要翻译：提供了通过选择另一个节点来完成事务来响应执行一个或多个事务的节点的终止的技术，并且向所选择的节点分配存在于被终止的节点和被所述事务访问的对象之间的亲和关系。

3. 发明授权

US07315910B2 Techniques for handling lock-related inconsistencies 有权
标题翻译：处理锁相关不一致的技巧
公开(公告)号：US07315910B2
公开(公告)日：2008-01-01
申请号：US11156318
申请日：2005-06-16
申请人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek , Eugene Ho
发明人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek , Eugene Ho
IPC分类号： G06F12/14 , G06F7/00 , G06F11/00 , G06F9/46
CPC分类号： G06F9/526 , G06F2209/522 , Y10S707/99938
摘要： Techniques are described herein for handling lock-related inconsistencies. As mentioned above, such inconsistencies occur when two or more sets of lock information, relating to the same resource, convey inconsistent information about locks requested and/or granted on that resource. In general, the techniques involve causing the locally-stored lock information about a resource to be sent to the master node of the resource. The master node of the resource compares the lock information thus received against the lock information maintained by the master node. Based on the comparison, the master node determines how to resolve the lock-related inconsistency, and sends messages to those nodes that need to change their local lock information for the resource. Once all of the lock information has been made consistent, the resource made available for access.
摘要翻译：本文描述了处理与锁相关的不一致性的技术。如上所述，当与相同资源相关的两组或多组锁定信息传达关于在该资源上请求和/或授予的锁定的不一致的信息时，会发生这种不一致。一般来说，这些技术涉及将关于资源的本地存储的锁定信息发送到资源的主节点。资源的主节点将由此接收的锁定信息与由主节点维护的锁定信息进行比较。基于比较，主节点确定如何解决与锁相关的不一致，并向需要更改其资源的本地锁信息的那些节点发送消息。一旦所有的锁信息一致，该资源就可用于访问。

4. 发明授权

US07389293B2 Remastering for asymmetric clusters in high-load scenarios 有权
标题翻译：在高负载情况下修复非对称集群
公开(公告)号：US07389293B2
公开(公告)日：2008-06-17
申请号：US11061796
申请日：2005-02-17
申请人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll
发明人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll
IPC分类号： G06F17/30
CPC分类号： G06F17/30575 , Y10S707/99938 , Y10S707/99939 , Y10S707/99942
摘要： Techniques are provided for remastering resources based on node utilization. According to one such technique, resources are remastered in response to the over-utilization of the node that currently masters those resources. The utilization of each node is tracked, and when a particular node's utilization exceeds a specified threshold, selected resources that are currently mastered by that node are remastered so that nodes other than the particular node become the new masters for the selected resources. Each node's utilization is based on that node's capacity, and each node's capacity may differ. According to an aspect of one technique, each node's capacity is based on that node's processing resources and memory resources. Remastering resources in this manner tends to reduce the average amount of time taken for nodes to handle requests for the resources that they master.
摘要翻译：提供了基于节点利用重新编制资源的技术。根据一种这样的技术，响应于当前主控这些资源的节点的过度利用而重新资源化资源。跟踪每个节点的利用率，并且当特定节点的利用率超过指定的阈值时，重新分配由该节点当前掌握的所选择的资源，使得除特定节点之外的节点成为所选资源的新的主节点。每个节点的利用率都是基于该节点的容量，并且每个节点的容量可能不同。根据一种技术的一个方面，每个节点的容量基于该节点的处理资源和存储器资源。以这种方式修复资源往往会减少节点处理其掌握的资源请求所需的平均时间。

5. 发明授权

US07080075B1 Dynamic remastering for a subset of nodes in a cluster environment 有权
标题翻译：集群环境中节点的一个子集的动态重组
公开(公告)号：US07080075B1
公开(公告)日：2006-07-18
申请号：US11024347
申请日：2004-12-27
申请人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll
发明人： Wilson Wai Shun Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll
IPC分类号： G06F17/30 , G06F17/40 , G06F15/16 , G06F15/173 , G06F15/177
CPC分类号： G06F17/30362 , Y10S707/99938 , Y10S707/99939
摘要： Techniques are provided for mastering resources by assigning resources to mastery-eligible-sets. The resources that are assigned to a mastery-eligible-set may be mastered only at nodes that belong to the mastery-eligible-set. The membership of a mastery-eligible-set for a given set of related resources may be established based on which nodes have the highest affinity for the given set of related resources. Resource usage may be monitored, and the system may be periodically reconfigured, by changing membership of the mastery-eligible-sets, based on the usage information.
摘要翻译：提供了通过将资源分配给符合资格的资源来掌握资源的技术。分配给精通符合资格的资源的资源只能在属于掌握资格的资源集合的节点上掌握。可以基于哪些节点对给定的一组相关资源具有最高的亲和力来建立针对给定的一组相关资源的精通符合资格的成员资格。可以监视资源使用情况，并且可以通过基于使用信息来改变掌握资格的集合的成员资格来周期性地重新配置系统。

6. 发明申请

US20060288144A1 TECHNIQUES FOR HANDLING LOCK-RELATED INCONSISTENCIES 有权
标题翻译：处理与锁定相关的不良情况的技术
公开(公告)号：US20060288144A1
公开(公告)日：2006-12-21
申请号：US11156318
申请日：2005-06-16
申请人： Wilson Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek , Eugene Ho
发明人： Wilson Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek , Eugene Ho
IPC分类号： G06F12/14
CPC分类号： G06F9/526 , G06F2209/522 , Y10S707/99938
摘要： Techniques are described herein for handling lock-related inconsistencies. As mentioned above, such inconsistencies occur when two or more sets of lock information, relating to the same resource, convey inconsistent information about locks requested and/or granted on that resource. In general, the techniques involve causing the locally-stored lock information about a resource to be sent to the master node of the resource. The master node of the resource compares the lock information thus received against the lock information maintained by the master node. Based on the comparison, the master node determines how to resolve the lock-related inconsistency, and sends messages to those nodes that need to change their local lock information for the resource. Once all of the lock information has been made consistent, the resource made available for access. Because the lock-related inconsistency is resolved without restarting nodes, the availability required to correct the inconsistency.
摘要翻译：本文描述了处理与锁相关的不一致性的技术。如上所述，当与相同资源相关的两组或多组锁定信息传达关于在该资源上请求和/或授予的锁定的不一致的信息时，会发生这种不一致。一般来说，这些技术涉及将关于资源的本地存储的锁定信息发送到资源的主节点。资源的主节点将由此接收的锁定信息与由主节点维护的锁定信息进行比较。基于比较，主节点确定如何解决与锁相关的不一致，并向需要更改其资源的本地锁信息的那些节点发送消息。一旦所有的锁信息一致，该资源就可用于访问。由于锁定相关的不一致性在不重新启动节点的情况下得到解决，所以需要更改不一致的可用性。

7. 发明申请

US20070043728A1 Optimization for transaction failover in a multi-node system environment where objects' mastership is based on access patterns 有权
标题翻译：在多节点系统环境中优化事务故障切换，其中对象的主管基于访问模式
公开(公告)号：US20070043728A1
公开(公告)日：2007-02-22
申请号：US11282327
申请日：2005-11-18
申请人： Wilson Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
发明人： Wilson Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G06F11/2046 , G06F11/203 , G06F11/2033 , G06F11/2035 , G06F11/30 , G06F2201/825 , Y10S707/99939 , Y10S707/99942 , Y10S707/99953
摘要： Techniques are provided for responding to the termination of a node executing one or more transactions by selecting another node to complete the transactions, and assigning to the selected node the affinity relationships that existed between the terminated node and the objects being accessed by said transactions.
摘要翻译：提供了通过选择另一个节点来完成事务来响应执行一个或多个事务的节点的终止的技术，并且向所选择的节点分配存在于所终止的节点和被所述事务访问的对象之间的亲和度关系。

8. 发明申请

US20070043726A1 Affinity-based recovery/failover in a cluster environment 有权
标题翻译：集群环境中基于关联度的恢复/故障转移
公开(公告)号：US20070043726A1
公开(公告)日：2007-02-22
申请号：US11205529
申请日：2005-08-16
申请人： Wilson Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
发明人： Wilson Chan , Angelo Pruscino , Stefan Roesch , Michael Zoll , Tolga Yurek
IPC分类号： G06F17/30
CPC分类号： G06F11/2046 , G06F11/203 , G06F11/2033 , G06F11/2035 , G06F11/30 , G06F2201/825 , Y10S707/99939 , Y10S707/99942 , Y10S707/99953
摘要： Techniques are provided for responding to the termination of a node by selecting another node, and assigning to the selected node the affinity relationships that existed between the terminated node and one or more objects. The resources that belong to the objects involved in the affinity relationships are remastered to the selected node. The selected node then performs recovery of the resources that had been opened by the terminated node and/or serves as a failover node to execute the transactions that had been executing on the terminated node.
摘要翻译：提供了通过选择另一个节点来响应终止节点的技术，并且向所选节点分配存在于终止的节点与一个或多个对象之间的亲和度关系。属于与亲和力关系相关的对象的资源将重新分配给所选节点。所选择的节点然后执行已被终止的节点打开的资源的恢复和/或用作故障切换节点来执行在终止的节点上执行的事务。

9. 发明申请

US20080082533A1 Persistent locks/resources for concurrency control 审中-公开
标题翻译：用于并发控制的持久锁/资源
公开(公告)号：US20080082533A1
公开(公告)日：2008-04-03
申请号：US11540038
申请日：2006-09-28
申请人： Tak Fung Wang , Angelo Pruscino , Wilson Wai Shun Chan , Tolga Yurek
发明人： Tak Fung Wang , Angelo Pruscino , Wilson Wai Shun Chan , Tolga Yurek
IPC分类号： G06F17/30
CPC分类号： G06F9/52 , G06F16/2343
摘要： The state of locks maintained in volatile memory by the master for the resources are preserved after termination of the master. The locks are preserved by storing persistent copies of the locks. The persistently stored copies of the locks are accessible to other nodes in a multi-node system of the master. Locks for which persistent copies are stored in this way are referred to as persistent locks. A persistent copy of data is a copy that is stored in a form of memory that is able to store the copy after the volatile memory storing the data is unable to do so.
摘要翻译：由主机为资源维护的锁的状态在主机终止后被保留。通过存储锁的永久副本来保留锁。持久存储的锁的副本可由主机的多节点系统中的其他节点访问。以这种方式存储持久副本的锁称为持久锁。持久的数据副本是以能够存储数据的易失性存储器不能这样做的能够存储副本的存储器形式存储的副本。

10. 发明授权

US08103642B2 Adaptive region locking 有权
标题翻译：自适应区域锁定
公开(公告)号：US08103642B2
公开(公告)日：2012-01-24
申请号：US11346822
申请日：2006-02-03
申请人： Eugene Ho , Wilson Wai Shun Chan , Tak Fung Wang , Angelo Pruscino , Tolga Yurek
发明人： Eugene Ho , Wilson Wai Shun Chan , Tak Fung Wang , Angelo Pruscino , Tolga Yurek
IPC分类号： G06F7/00 , G06F17/00 , G06F15/173
CPC分类号： G06F9/526 , G06F2209/522 , G06F2209/523
摘要： A method and apparatus for managing locks in a database system is provided. A master node grants a lock on a first resource and a group of resources that includes the first resource to a first requester node. The requester node receives a mapping corresponding to the group of resources that may indicate that a lock already exists for a second resource in the group. If the requester node desires a lock on a resource located in the group, the requester node grants itself the lock without notifying the master node. A second requester node requests a lock for a particular resource in the group of resources. The first requester node grants the lock on the particular resource and updates the mapping to indicate that a different node holds a lock for the particular resource.
摘要翻译：提供了一种用于管理数据库系统中的锁的方法和装置。主节点向包括第一资源的第一资源和一组资源授予对第一请求者节点的锁定。请求者节点接收对应于可以指示组中的第二资源的锁已经存在的资源组的映射。如果请求者节点希望对位于组中的资源进行锁定，则请求者节点自己给予锁定而不通知主节点。第二个请求者节点向资源组中的特定资源请求锁。第一个请求者节点授予对特定资源的锁定，并更新映射以指示不同的节点持有特定资源的锁。

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