公开(公告)号：US11544162B2

公开(公告)日：2023-01-03

申请号：US17547874

申请日：2021-12-10

Applicant: Oracle International Corporation

Inventor： Andrey Gusev ,  Tak Wang

IPC: G06F11/00 ,  G06F11/20 ,  G06F11/14

Abstract: The fail-over computer cluster enables multiple computing devices to operate using adaptive quorum rules to dictate which nodes are in the fail-over cluster at any given time. The adaptive quorum rules provide requirements for communications between nodes and connections with voting file systems. The adaptive quorum rules include particular recovery rules for unplanned changes in node configuration, such as due to a disruptive event. Such recovery quorum rules enable the fail-over cluster to continuing to operate with various changed configurations of its node members as a result of the disruptive event. In the changed configuration, access to voting file systems may not be required for a majority-group subset of nodes. If no majority-group subset remains, nodes may need direct or indirect access to voting file systems.

公开(公告)号：US11210187B1

公开(公告)日：2021-12-28

申请号：US16917360

申请日：2020-06-30

Applicant: Oracle International Corporation

Inventor： Andrey Gusev ,  Tak Wang

IPC: G06F11/00 ,  G06F11/20 ,  G06F11/14

Abstract: The fail-over computer cluster enables multiple computing devices to operate using adaptive quorum rules to dictate which nodes are in the fail-over cluster at any given time. The adaptive quorum rules provide requirements for communications between nodes and connections with voting file systems. The adaptive quorum rules include particular recovery rules for unplanned changes in node configuration, such as due to a disruptive event. Such recovery quorum rules enable the fail-over cluster to continuing to operate with various changed configurations of its node members as a result of the disruptive event. In the changed configuration, access to voting file systems may not be required for a majority-group subset of nodes. If no majority-group subset remains, nodes may need direct or indirect access to voting file systems.

公开(公告)号：US20200084088A1

公开(公告)日：2020-03-12

申请号：US16125992

申请日：2018-09-10

Applicant: Oracle International Corporation

Inventor： Ming Zhu ,  Andrey Gusev

IPC: H04L12/24 ,  H04L12/26

Abstract: The embodiments disclosed herein relate to using SNMP functionality for fast and accurate detection of node failure in a computer cluster. When cluster nodes are connected via a switch that provides SNMP capability, a trap mechanism can be used to immediately and proactively notify cluster nodes that a particular cluster node is disconnected from the network, potentially even before the remaining cluster nodes have noticed a lack of response. In addition, when a cluster node notices a lack of response from a particular cluster node, the switch can be queried for link status and traffic information that can be used for fast determination of node status.

公开(公告)号：US20220100619A1

公开(公告)日：2022-03-31

申请号：US17547874

申请日：2021-12-10

Applicant: Oracle International Corporation

Inventor： Andrey Gusev ,  Tak Wang

IPC: G06F11/20 ,  G06F11/14

Abstract: The fail-over computer cluster enables multiple computing devices to operate using adaptive quorum rules to dictate which nodes are in the fail-over cluster at any given time. The adaptive quorum rules provide requirements for communications between nodes and connections with voting file systems. The adaptive quorum rules include particular recovery rules for unplanned changes in node configuration, such as due to a disruptive event. Such recovery quorum rules enable the fail-over cluster to continuing to operate with various changed configurations of its node members as a result of the disruptive event. In the changed configuration, access to voting file systems may not be required for a majority-group subset of nodes. If no majority-group subset remains, nodes may need direct or indirect access to voting file systems.

公开(公告)号：US20210406141A1

公开(公告)日：2021-12-30

申请号：US16917360

申请日：2020-06-30

Applicant: Oracle International Corporation

Inventor： Andrey Gusev ,  Tak Wang

IPC: G06F11/20

Abstract: The fail-over computer cluster enables multiple computing devices to operate using adaptive quorum rules to dictate which nodes are in the fail-over cluster at any given time. The adaptive quorum rules provide requirements for communications between nodes and connections with voting file systems. The adaptive quorum rules include particular recovery rules for unplanned changes in node configuration, such as due to a disruptive event. Such recovery quorum rules enable the fail-over cluster to continuing to operate with various changed configurations of its node members as a result of the disruptive event. In the changed configuration, access to voting file systems may not be required for a majority-group subset of nodes. If no majority-group subset remains, nodes may need direct or indirect access to voting file systems.

公开(公告)号：US09870412B2

公开(公告)日：2018-01-16

申请号：US13627370

申请日：2012-09-26

Applicant: Oracle International Corporation

Inventor： Sourav Ghosh ,  Ashish Motivala ,  Charles Hoch ,  Rohan Aranha ,  Ben Fulton ,  Andrey Gusev ,  Tirthankar Lahiri ,  Juan Tellez

IPC: G06F11/20 ,  G06F17/30

CPC classification number: G06F17/30575 ,  G06F11/2025 ,  G06F11/2028 ,  G06F11/2038 ,  G06F11/2097 ,  G06F2201/80

Abstract: A cluster manager manages copies of a mid-tier database as a mid-tier database cluster. The cluster manager may concurrently manage a backend database system. The cluster manager is configured to monitor for and react to failures of mid-tier database nodes. The cluster manager may react to a mid-tier database failure by, for example, assigning a new active node, creating a new standby node, creating new copies of the mid-tier databases, implementing new replication or backup schemes, reassigning the node's virtual address to another node, or relocating applications that were directly linked to the mid-tier database to another host. Each node or an associated agent may configure the cluster manager during initialization, based on common cluster configuration information. Each copy of the mid-tier database may be, for example, a memory resident database. Thus, a node must reload the entire database into memory to recover a copy of the database.

公开(公告)号：US20210067404A1

公开(公告)日：2021-03-04

申请号：US17095917

申请日：2020-11-12

Applicant: Oracle International Corporation

Inventor： Ming Zhu ,  Andrey Gusev

IPC: H04L12/24 ,  H04L12/26

Abstract: The embodiments disclosed herein relate to using SNMP functionality for fast and accurate detection of node failure in a computer cluster. When cluster nodes are connected via a switch that provides SNMP capability, a trap mechanism can be used to immediately and proactively notify cluster nodes that a particular cluster node is disconnected from the network, potentially even before the remaining cluster nodes have noticed a lack of response. In addition, when a cluster node notices a lack of response from a particular cluster node, the switch can be queried for link status and traffic information that can be used for fast determination of node status.

公开(公告)号：US20240126531A1

公开(公告)日：2024-04-18

申请号：US18379627

申请日：2023-10-12

Applicant: Oracle International Corporation

Inventor： Ying Zhang ,  Andrey Gusev ,  Jonathan Creighton ,  Siu Tam ,  Balaji Pagadala

IPC: G06F8/65

CPC classification number: G06F8/65

Abstract: Described are improved systems, computer program products, and methods for a new local rolling online patching solution to a database server with minimized disruption to other instances during patching. For a one-node database server, it achieves single rolling online patching by starting a new instance of the same database from the newly patched home before shutting down the collocated instance running out of the old home.

公开(公告)号：US11463303B2

公开(公告)日：2022-10-04

申请号：US17095917

申请日：2020-11-12

Applicant: Oracle International Corporation

Inventor： Ming Zhu ,  Andrey Gusev

IPC: H04L41/0668 ,  H04L43/08 ,  H04L41/0677 ,  H04L41/0213

Abstract: The embodiments disclosed herein relate to using SNMP functionality for fast and accurate detection of node failure in a computer cluster. When cluster nodes are connected via a switch that provides SNMP capability, a trap mechanism can be used to immediately and proactively notify cluster nodes that a particular cluster node is disconnected from the network, potentially even before the remaining cluster nodes have noticed a lack of response. In addition, when a cluster node notices a lack of response from a particular cluster node, the switch can be queried for link status and traffic information that can be used for fast determination of node status.

公开(公告)号：US20130046731A1

公开(公告)日：2013-02-21

申请号：US13627370

申请日：2012-09-26

Applicant: Oracle International Corporation

Inventor： Sourav Ghosh ,  Ashish Motivala ,  Charles Hoch ,  Rohan Aranha ,  Ben Fulton ,  Andrey Gusev ,  Tirthankar Lahiri ,  Juan Tellez

IPC: G06F17/30

CPC classification number: G06F17/30575 ,  G06F11/2025 ,  G06F11/2028 ,  G06F11/2038 ,  G06F11/2097 ,  G06F2201/80

Abstract: A cluster manager manages copies of a mid-tier database as a mid-tier database cluster. The cluster manager may concurrently manage a backend database system. The cluster manager is configured to monitor for and react to failures of mid-tier database nodes. The cluster manager may react to a mid-tier database failure by, for example, assigning a new active node, creating a new standby node, creating new copies of the mid-tier databases, implementing new replication or backup schemes, reassigning the node's virtual address to another node, or relocating applications that were directly linked to the mid-tier database to another host. Each node or an associated agent may configure the cluster manager during initialization, based on common cluster configuration information. Each copy of the mid-tier database may be, for example, a memory resident database. Thus, a node must reload the entire database into memory to recover a copy of the database.

Abstract translation: 集群管理器将中间层数据库的副本作为中间层数据库集群管理。 集群管理器可以同时管理后端数据库系统。 集群管理器配置为监视中层数据库节点的故障并对其做出反应。 集群管理器可以通过例如分配新的活动节点，创建新的备用节点，创建中间层数据库的新副本，实现新的复制或备份方案来对中间层数据库故障作出反应，重新分配节点的虚拟 地址到另一个节点，或将直接链接到中间层数据库的应用程序重新定位到另一个主机。 每个节点或相关联的代理可以基于常见的集群配置信息在初始化期间配置集群管理器。 中间层数据库的每个副本可以是例如内存驻留数据库。 因此，节点必须将整个数据库重新加载到内存中以恢复数据库的副本。