公开(公告)号：US09898414B2

公开(公告)日：2018-02-20

申请号：US14530354

申请日：2014-10-31

Applicant: Oracle International Corporation

Inventor： Zoran Radovic ,  Paul Loewenstein ,  John G. Johnson

IPC: G06F3/00 ,  G06F12/0891 ,  G06F12/02 ,  G06F11/07 ,  G06F3/06

CPC classification number: G06F12/0891 ,  G06F3/0653 ,  G06F3/0668 ,  G06F11/0724 ,  G06F11/073 ,  G06F11/0763 ,  G06F12/023 ,  G06F2212/1044 ,  G06F2212/621

Abstract: Nodes in a distributed node system are configured to support memory corruption detection when memory is shared between the nodes. Nodes in the distributed node system share data in units of memory referred to herein as “shared cache lines.” A node associates a version value with data in a shared cache line. The version value and data may be stored in a shared cache line in the node's main memory. When the node performs a memory operation, it can use the version value to determine whether memory corruption has occurred. For example, a pointer may be associated with a version value. When the pointer is used to access memory, the version value of the pointer may indicate the expected version value at the memory location. If the version values do not match, then memory corruption has occurred.

公开(公告)号：US20140096145A1

公开(公告)日：2014-04-03

申请号：US13778307

申请日：2013-02-27

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Kathirgamar Aingaran ,  William H. Bridge, JR. ,  Garret F. Swart ,  Sumti Jairath ,  John G. Johnson

IPC: G06F9/54

CPC classification number: G06F9/30065 ,  G06F9/381 ,  G06F9/3851 ,  G06F9/3867 ,  G06F9/546 ,  G06F12/0804 ,  G06F12/082 ,  G06F12/12 ,  G06F12/1408 ,  G06F12/1475 ,  G06F13/102 ,  G06F13/362 ,  G06F13/4068 ,  G06F15/17331 ,  G06F15/7889 ,  G06F17/30324 ,  G06F17/30442 ,  G06F17/30483 ,  G06F17/30495 ,  G06F17/30498 ,  G06F17/30501 ,  G06F17/30519 ,  G06F17/30578 ,  G06F17/30595 ,  G06F17/30867 ,  G06F21/6209 ,  H04L69/14 ,  Y02D10/14 ,  Y02D10/151 ,  Y02D10/45

Abstract: A method and apparatus for sending and receiving messages between nodes on a compute cluster is provided. Communication between nodes on a compute cluster, which do not share physical memory, is performed by passing messages over an I/O subsystem. Typically, each node includes a synchronization mechanism, a thread ready to receive connections, and other threads to process and reassemble messages. Frequently, a separate queue is maintained in memory for each node on the I/O subsystem sending messages to the receiving node. Such overhead increases latency and limits message throughput. Due to a specialized coprocessor running on each node, messages on an I/O subsystem are sent, received, authenticated, synchronized, and reassembled at a faster rate and with lower latency. Additionally, the memory structure used may reduce memory consumption by storing messages from multiple sources in the same memory structure, eliminating the need for per-source queues.

Abstract translation: 提供了一种用于在计算集群上的节点之间发送和接收消息的方法和装置。 通过在I / O子系统上传递消息来执行不共享物理内存的计算集群上的节点之间的通信。 通常，每个节点包括同步机制，准备好接收连接的线程以及处理和重新组合消息的其他线程。 通常，I / O子系统中的每个节点向存储器中维护单独的队列，向接收节点发送消息。 这种开销增加了延迟并限制了消息吞吐量。 由于在每个节点上运行的专用协处理器，I / O子系统上的消息以更快的速率和更低的延迟被发送，接收，认证，同步和重新组装。 此外，所使用的存储器结构可以通过在相同存储器结构中存储来自多个源的消息来减少存储器消耗，从而消除对每个源队列的需要。

公开(公告)号：US10223116B2

公开(公告)日：2019-03-05

申请号：US13828555

申请日：2013-03-14

Applicant: Oracle International Corporation

Inventor： Paul N. Loewenstein ,  John G. Johnson ,  Kathirgamar Aingaran ,  Zoran Radovic

IPC: G06F12/08 ,  G06F12/12 ,  G06F9/30 ,  G06F17/30 ,  G06F9/54 ,  G06F9/38 ,  G06F12/0804 ,  G06F15/173 ,  G06F12/0817 ,  G06F12/14 ,  G06F21/62 ,  H04L29/06 ,  G06F15/78 ,  G06F13/10 ,  G06F13/362 ,  G06F13/40

Abstract: A method and apparatus are disclosed for enabling nodes in a distributed system to share one or more memory portions. A home node makes a portion of its main memory available for sharing, and one or more sharer nodes mirrors that shared portion of the home node's main memory in its own main memory. To maintain memory coherency, a memory coherence protocol is implemented. Under this protocol, load and store instructions that target the mirrored memory portion of a sharer node are trapped, and store instructions that target the shared memory portion of a home node are trapped. With this protocol, valid data is obtained from the home node and updates are propagated to the home node. Thus, no “dirty” data is transferred between sharer nodes. As a result, the failure of one node will not cause the failure of another node or the failure of the entire system.

公开(公告)号：US09158810B2

公开(公告)日：2015-10-13

申请号：US13778307

申请日：2013-02-27

Applicant: Oracle International Corporation

Inventor： Kathirgamar Aingaran ,  William H. Bridge, Jr. ,  Garret F. Swart ,  Sumti Jairath ,  John G. Johnson

IPC: G06F3/00 ,  G06F9/44 ,  G06F9/46 ,  G06F13/00 ,  G06F17/30 ,  G06F9/54 ,  G06F9/38 ,  G06F12/08 ,  G06F12/12 ,  G06F15/173 ,  G06F12/14

CPC classification number: G06F9/30065 ,  G06F9/381 ,  G06F9/3851 ,  G06F9/3867 ,  G06F9/546 ,  G06F12/0804 ,  G06F12/082 ,  G06F12/12 ,  G06F12/1408 ,  G06F12/1475 ,  G06F13/102 ,  G06F13/362 ,  G06F13/4068 ,  G06F15/17331 ,  G06F15/7889 ,  G06F17/30324 ,  G06F17/30442 ,  G06F17/30483 ,  G06F17/30495 ,  G06F17/30498 ,  G06F17/30501 ,  G06F17/30519 ,  G06F17/30578 ,  G06F17/30595 ,  G06F17/30867 ,  G06F21/6209 ,  H04L69/14 ,  Y02D10/14 ,  Y02D10/151 ,  Y02D10/45

Abstract: A method and apparatus for sending and receiving messages between nodes on a compute cluster is provided. Communication between nodes on a compute cluster, which do not share physical memory, is performed by passing messages over an I/O subsystem. Typically, each node includes a synchronization mechanism, a thread ready to receive connections, and other threads to process and reassemble messages. Frequently, a separate queue is maintained in memory for each node on the I/O subsystem sending messages to the receiving node. Such overhead increases latency and limits message throughput. Due to a specialized coprocessor running on each node, messages on an I/O subsystem are sent, received, authenticated, synchronized, and reassembled at a faster rate and with lower latency. Additionally, the memory structure used may reduce memory consumption by storing messages from multiple sources in the same memory structure, eliminating the need for per-source queues.

Abstract translation: 提供了一种用于在计算集群上的节点之间发送和接收消息的方法和装置。 通过在I / O子系统上传递消息来执行不共享物理内存的计算集群上的节点之间的通信。 通常，每个节点包括同步机制，准备好接收连接的线程以及处理和重新组合消息的其他线程。 通常，I / O子系统中的每个节点向存储器中维护单独的队列，向接收节点发送消息。 这种开销增加了延迟并限制了消息吞吐量。 由于在每个节点上运行的专用协处理器，I / O子系统上的消息以更快的速率和更低的延迟被发送，接收，认证，同步和重新组装。 此外，所使用的存储器结构可以通过在相同存储器结构中存储来自多个源的消息来减少存储器消耗，从而消除对每个源队列的需要。

公开(公告)号：US20140095810A1

公开(公告)日：2014-04-03

申请号：US13828555

申请日：2013-03-14

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： PAUL N. LOEWENSTEIN ,  John G. Johnson ,  Kathirgamar Aingaran ,  Zoran Radovic

IPC: G06F12/08 ,  G06F12/12

CPC classification number: G06F9/30065 ,  G06F9/381 ,  G06F9/3851 ,  G06F9/3867 ,  G06F9/546 ,  G06F12/0804 ,  G06F12/082 ,  G06F12/12 ,  G06F12/1408 ,  G06F12/1475 ,  G06F13/102 ,  G06F13/362 ,  G06F13/4068 ,  G06F15/17331 ,  G06F15/7889 ,  G06F17/30324 ,  G06F17/30442 ,  G06F17/30483 ,  G06F17/30495 ,  G06F17/30498 ,  G06F17/30501 ,  G06F17/30519 ,  G06F17/30578 ,  G06F17/30595 ,  G06F17/30867 ,  G06F21/6209 ,  H04L69/14 ,  Y02D10/14 ,  Y02D10/151 ,  Y02D10/45

Abstract: A method and apparatus are disclosed for enabling nodes in a distributed system to share one or more memory portions. A home node makes a portion of its main memory available for sharing, and one or more sharer nodes mirrors that shared portion of the home node's main memory in its own main memory. To maintain memory coherency, a memory coherence protocol is implemented. Under this protocol, load and store instructions that target the mirrored memory portion of a sharer node are trapped, and store instructions that target the shared memory portion of a home node are trapped. With this protocol, valid data is obtained from the home node and updates are propagated to the home node. Thus, no “dirty” data is transferred between sharer nodes. As a result, the failure of one node will not cause the failure of another node or the failure of the entire system.

Abstract translation: 公开了一种用于使分布式系统中的节点共享一个或多个存储器部分的方法和装置。 家庭节点使其主存储器的一部分可用于共享，并且一个或多个共享节点在其自己的主存储器中镜像家庭节点的主存储器的共享部分。 为了保持内存一致性，实现了内存一致性协议。 在该协议下，加载和存储指向共享者节点的镜像存储器部分的指令被捕获，并且存储针对家庭节点的共享存储器部分的存储指令被捕获。 使用该协议，从家庭节点获得有效数据，并将更新传播到家庭节点。 因此，在共享器节点之间不传输“脏”数据。 结果，一个节点的故障不会导致另一个节点的故障或整个系统的故障。

公开(公告)号：US09372813B2

公开(公告)日：2016-06-21

申请号：US13839525

申请日：2013-03-15

Applicant: Oracle International Corporation

Inventor： Sanjiv Kapil ,  Garret F. Swart ,  Aings Aingaran ,  William H. Bridge, Jr. ,  Sumti Jairath ,  John G. Johnson

IPC: G06F12/00 ,  G06F13/10 ,  G06F17/30 ,  G06F9/54 ,  G06F9/38 ,  G06F12/08 ,  G06F12/12 ,  G06F15/173 ,  G06F12/14 ,  G06F21/62 ,  H04L29/06 ,  G06F15/78 ,  G06F13/362 ,  G06F13/40

CPC classification number: G06F9/30065 ,  G06F9/381 ,  G06F9/3851 ,  G06F9/3867 ,  G06F9/546 ,  G06F12/0804 ,  G06F12/082 ,  G06F12/12 ,  G06F12/1408 ,  G06F12/1475 ,  G06F13/102 ,  G06F13/362 ,  G06F13/4068 ,  G06F15/17331 ,  G06F15/7889 ,  G06F17/30324 ,  G06F17/30442 ,  G06F17/30483 ,  G06F17/30495 ,  G06F17/30498 ,  G06F17/30501 ,  G06F17/30519 ,  G06F17/30578 ,  G06F17/30595 ,  G06F17/30867 ,  G06F21/6209 ,  H04L69/14 ,  Y02D10/14 ,  Y02D10/151 ,  Y02D10/45

Abstract: A system and method implementing revocable secure remote keys is disclosed. A plurality of indexed base secrets is stored in a register of a coprocessor of a local node coupled with a local memory. When it is determined that a selected base secret expired, the base secret stored in the register based on the base secret index is changed, thereby invalidating remote keys generated based on the expired base secret. A remote key with validation data and a base secret index is received from a node requesting access to the local memory. A validation base secret is obtained from the register based on the base secret index. The coprocessor performs hardware validation on the validation data based on the validation base secret. Hardware validation fails if the base secret associated with the base secret index has been changed in the register of the selected coprocessor.

Abstract translation: 公开了一种实现可撤销的安全远程键的系统和方法。 多个索引的基本秘密被存储在与本地存储器耦合的本地节点的协处理器的寄存器中。 当确定所选择的基本秘密到期时，基于所述基本秘密索引存储在所述寄存器中的所述基本秘密被改变，从而使基于所述过期的基本秘密生成的远程密钥无效。 从请求访问本地存储器的节点接收具有验证数据和基本秘密索引的远程密钥。 基于基本秘密索引从寄存器获得验证基本密码。 协处理器基于验证基础密码对验证数据执行硬件验证。 如果在所选协处理器的寄存器中改变与基本秘密索引相关联的基本秘密，则硬件验证失败。

公开(公告)号：US20150278103A1

公开(公告)日：2015-10-01

申请号：US14530354

申请日：2014-10-31

Applicant: Oracle International Corporation

Inventor： Zoran Radovic ,  Paul Loewenstein ,  John G. Johnson

IPC: G06F12/08 ,  G06F12/02

CPC classification number: G06F12/0891 ,  G06F3/0653 ,  G06F3/0668 ,  G06F11/0724 ,  G06F11/073 ,  G06F11/0763 ,  G06F12/023 ,  G06F2212/1044 ,  G06F2212/621

Abstract: Nodes in a distributed node system are configured to support memory corruption detection when memory is shared between the nodes. Nodes in the distributed node system share data in units of memory referred to herein as “shared cache lines.” A node associates a version value with data in a shared cache line. The version value and data may be stored in a shared cache line in the node's main memory. When the node performs a memory operation, it can use the version value to determine whether memory corruption has occurred. For example, a pointer may be associated with a version value. When the pointer is used to access memory, the version value of the pointer may indicate the expected version value at the memory location. If the version values do not match, then memory corruption has occurred.

Abstract translation: 分布式节点系统中的节点被配置为在节点之间共享存储器时支持内存损坏检测。 分布式节点系统中的节点以这里称为“共享高速缓存行”的存储器单元共享数据。节点将版本值与共享高速缓存行中的数据相关联。 版本值和数据可以存储在节点的主存储器中的共享高速缓存行中。 当节点执行内存操作时，它可以使用版本值来确定是否发生内存损坏。 例如，指针可能与版本值相关联。 当指针用于访问存储器时，指针的版本值可以指示存储器位置处的期望版本值。 如果版本值不匹配，则会发生内存损坏。