公开(公告)号：US08433760B2

公开(公告)日：2013-04-30

申请号：US12959581

申请日：2010-12-03

Applicant: Arunachalam Ganapathy ,  Rajeev Mishra ,  Lance W. Russell ,  Murali Vaddagiri

Inventor： Arunachalam Ganapathy ,  Rajeev Mishra ,  Lance W. Russell ,  Murali Vaddagiri

IPC: G06F15/16

CPC classification number: H04L43/10 ,  H04L43/0817

Abstract: A gossiping scheme for sharing node status in a cluster of nodes provides a robust mechanism for determining node status within the cluster. Nodes transmit gossip messages to each other nodes, the gossip messages listing other nodes in the cluster that are operational. When a node does not receive a gossip message from a particular node within a predetermined time period, then the node transmits messages to the other nodes indicating that the particular node is down. However, if another node has received a packet from the particular node within the predetermined time period and receives the node down message, then the other node responds with a node alive message.

Abstract translation: 用于在节点集群中共享节点状态的八卦方案为确定集群内的节点状态提供了一种可靠的机制。 节点向每个其他节点发送八卦消息，八卦消息列出了群集中其他可操作的节点。 当节点在预定时间段内没有从特定节点接收到八卦消息时，节点向其他节点发送指示特定节点关闭的消息。 然而，如果另一节点在预定时间段内已经从特定节点接收到分组并且接收到节点向下消息，则另一个节点用节点存活消息进行响应。

公开(公告)号：US20130080572A1

公开(公告)日：2013-03-28

申请号：US13245281

申请日：2011-09-26

Applicant: Rajeev Mishra ,  Lance W. Russell ,  Sivakumar Krishnasamy ,  Krishnan Uma

Inventor： Rajeev Mishra ,  Lance W. Russell ,  Sivakumar Krishnasamy ,  Krishnan Uma

IPC: G06F15/16

CPC classification number: H04L69/08 ,  H04L69/32

Abstract: Provided are techniques related generally to computer communication and, more specifically, to techniques that provide legacy applications with access to a cluster infrastructure. A pseudo interface layer provides applications with internet protocol (IP) family sockets access to cluster awareness protocols in a manner that may be transparent to both the application and the cluster awareness layer of a kernel.

公开(公告)号：US20120254391A1

公开(公告)日：2012-10-04

申请号：US13452477

申请日：2012-04-20

Applicant: Arunachalam Ganapathy ,  Rajeev Mishra ,  Lance W. Russell ,  Murali Vaddagiri

Inventor： Arunachalam Ganapathy ,  Rajeev Mishra ,  Lance W. Russell ,  Murali Vaddagiri

IPC: G06F15/173

CPC classification number: H04L61/103 ,  H04L61/6022

Abstract: Communication between clusters of processing nodes is initiated by designating a link layer address and a target node name in a remote cluster. The link layer address is transmitted to the target node via a regular network transmission. The link layer address is stored locally in each cluster and the nodes in each cluster are signaled that a configuration change has been made, so that gateway nodes in the clusters can obtain the link layer address to use for subsequent communications with the other cluster, such as event notifications of node status changes.

公开(公告)号：US20120198477A1

公开(公告)日：2012-08-02

申请号：US13427159

申请日：2012-03-22

Applicant: Cheryl L. Jennings ,  Rajeev Mishra ,  Trishali Nayar ,  Lance W. Russell

Inventor： Cheryl L. Jennings ,  Rajeev Mishra ,  Trishali Nayar ,  Lance W. Russell

IPC: G06F9/54

CPC classification number: G06F9/542 ,  G06F2209/546

Abstract: An event notification method for distributed processing systems provides reduction of queue space and event processing bandwidth associated with duplicate events such as a particular event that is duplicated and results in multiple event notifications propagated for multiple consumers. When a duplicate event notification is received at an input to an event notification queue, rather than queuing the duplicate event notification, a sequence number of the event notification already in the queue is updated to indicate to the event consumer, exactly how many duplicate events have been received. The timestamp of the updated event notification may also be set to the timestamp of the most recently received duplicate event notification.

Abstract translation: 用于分布式处理系统的事件通知方法提供与重复事件（例如被复制的特定事件）相关联的队列空间和事件处理带宽的减少，并且导致为多个消费者传播的多个事件通知。 当在事件通知队列的输入处接收到重复的事件通知时，而不是排队重复的事件通知，已经在队列中的事件通知的序列号被更新，以便向事件消费者指出正在有多少重复事件具有 被收到 更新的事件通知的时间戳也可以被设置为最近接收到的重复事件通知的时间戳。

公开(公告)号：US20120143829A1

公开(公告)日：2012-06-07

申请号：US12957853

申请日：2010-12-01

Applicant: SHEVAUN M. FONTENOT ,  Eric P. Fried ,  Rajeev Mishra ,  Lance W. Russell ,  Stephen J. Tovcimak ,  Murali Vaddagiri

Inventor： SHEVAUN M. FONTENOT ,  Eric P. Fried ,  Rajeev Mishra ,  Lance W. Russell ,  Stephen J. Tovcimak ,  Murali Vaddagiri

IPC: G06F17/30

CPC classification number: G06F11/1425 ,  G06F11/1482 ,  G06F11/202 ,  G06F11/2046

Abstract: A second node receives a message from a first node in a cluster environment. The message includes a unique identifier of a shared data storage device including a cluster configuration database that defines membership of nodes in a cluster. In response to receiving the message, the second node attempts to find the shared data storage device. In response to finding the shared data storage device, the second node locates and reads the cluster configuration database on the shared data storage device. The second node then assimilates a cluster configuration update indicated by the cluster configuration database.

Abstract translation: 第二节点从群集环境中的第一节点接收消息。 该消息包括共享数据存储设备的唯一标识符，其包括定义集群中节点的成员资格的集群配置数据库。 响应于接收到该消息，第二节点试图找到共享数据存储设备。 响应于找到共享数据存储设备，第二节点定位并读取共享数据存储设备上的集群配置数据库。 然后，第二节点吸收由集群配置数据库指示的集群配置更新。

公开(公告)号：US08135985B2

公开(公告)日：2012-03-13

申请号：US12486332

申请日：2009-06-17

Applicant: Rajeev Mishra ,  Lance Warren Russell ,  Ravi A. Shankar

Inventor： Rajeev Mishra ,  Lance Warren Russell ,  Ravi A. Shankar

IPC: G06F11/00

CPC classification number: G06F11/1438 ,  G06F11/1484 ,  G06F11/203 ,  G06F11/2035

Abstract: A computer implemented method, a tangible computer storage medium, and a data processing system provide high availability support for virtual machines in a logical partitioned platform. A monitoring system detect a failure in the virtual machine. Partition management firmware then restarts the virtual machine in a consistency failover image node utilizing a consistency failover image. If a subsequent failure of the virtual machine is detected within a predetermined time, partition management firmware restarts the virtual machine in a boot failover image node utilizing a boot failover image.

Abstract translation: 计算机实现的方法，有形计算机存储介质和数据处理系统为逻辑分区平台中的虚拟机提供高可用性支持。 监控系统检测虚拟机故障。 分区管理固件然后使用一致性故障转移映像重新启动一个一致故障转移映像节点中的虚拟机。 如果在预定时间内检测到虚拟机的后续故障，则分区管理固件使用引导故障切换映像重新启动引导故障转移映像节点中的虚拟机。

公开(公告)号：US07792983B2

公开(公告)日：2010-09-07

申请号：US11831678

申请日：2007-07-31

Applicant: Rajeev Mishra ,  Lance Warren Russell

Inventor： Rajeev Mishra ,  Lance Warren Russell

IPC: G06F15/16

CPC classification number: G06F11/1438 ,  G06F9/485 ,  G06F9/5077 ,  G06F9/544 ,  G06F9/545 ,  G06F11/203 ,  G06F11/2046 ,  G06F2201/815

Abstract: A computer implemented method, apparatus, and computer program product for restarting pseudo terminal streams. In one embodiment, a device associated with a file descriptor in a set of file descriptors is opened. The set of file descriptors are identified in checkpoint data for restarting the pseudo terminal streams. In response to identifying the device as a pseudo terminal slave device, an entry for the identified pseudo terminal slave device is added to a list of open pseudo terminal slave devices. The entry for the identified pseudo terminal slave device is marked as an open pseudo terminal slave device. The list of open pseudo terminal slave devices permit pseudo terminal master devices and pseudo terminal slave devices to be restored and restarted in random order during a restart of the pseudo terminal streams.

Abstract translation: 一种用于重新启动伪终端流的计算机实现的方法，装置和计算机程序产品。 在一个实施例中，与一组文件描述符中的文件描述符相关联的设备被打开。 在检查点数据中识别文件描述符集合，以重新启动伪终端流。 响应于将设备识别为伪终端从设备，将所识别的伪终端从设备的条目添加到打开的伪终端从设备的列表中。 用于所识别的伪终端从设备的条目被标记为打开的伪终端从设备。 打开的伪终端从设备的列表允许伪终端主设备和伪终端从设备在伪终端流的重新启动期间以随机顺序被恢复和重新启动。

公开(公告)号：US20100161559A1

公开(公告)日：2010-06-24

申请号：US12338543

申请日：2008-12-18

Applicant: Sandeep Ramesh Patil ,  Ranadip Das ,  Rajeev Mishra

Inventor： Sandeep Ramesh Patil ,  Ranadip Das ,  Rajeev Mishra

IPC: G06F17/30 ,  G06F7/00

CPC classification number: G06F9/4856 ,  G06F9/45558 ,  G06F2009/45575 ,  G06F2009/45595

Abstract: According to one embodiment of the present disclosure, a method and technique is disclosed for maintaining a network connection during transfer of the workload from a global environment of a logical partition to a workload partition of the logical partition and during any subsequent transfer(s).

Abstract translation: 根据本公开的一个实施例，公开了一种用于在将工作负载从逻辑分区的全局环境传输到逻辑分区的工作负载分区以及在任何后续传送期间保持网络连接的方法和技术。

公开(公告)号：US20100083283A1

公开(公告)日：2010-04-01

申请号：US12242156

申请日：2008-09-30

Applicant: Satish Narayan Kharat ,  Rajeev Mishra ,  Lance Warren Russell ,  Suresh Sabarathinam

Inventor： Satish Narayan Kharat ,  Rajeev Mishra ,  Lance Warren Russell ,  Suresh Sabarathinam

IPC: G06F9/54

CPC classification number: G06F9/4856 ,  G06F9/5077

Abstract: Migrating a workload partition (WPAR) is provided. Responsive to receiving a request to checkpoint the WPAR, a list of virtual identifiers used by the WPAR to refer to IPC objects is generated and stored. Each virtual identifier corresponds to an IPC object and to a real identifier used by a kernel that corresponds to the IPC object. IPC object data and control information is collected and stored. Each process in the WPAR stores per process data. Responsive to receiving a request to restart the WPAR, the virtual identifier that the WPAR wants to be used is registered. A new IPC object is created by a kernel. The kernel maps a real identifier used by the kernel for the new IPC object to the registered virtual identifier. The restart process retrieves IPC data and control information and overlays it on the new IPC object. The per process data is restored.

Abstract translation: 提供了迁移工作负载分区（WPAR）。 响应于接收到WPAR检查点的请求，生成并存储WPAR用于引用IPC对象的虚拟标识符列表。 每个虚拟标识符对应于IPC对象和对应于IPC对象的内核使用的真实标识符。 收集并存储IPC对象数据和控制信息。 WPAR中的每个进程都存储每个进程数据。 响应于接收到重新启动WPAR的请求，注册了WPAR想要使用的虚拟标识符。 一个新的IPC对象是由内核创建的。 内核将新的IPC对象的内核使用的实际标识符映射到已注册的虚拟标识符。 重新启动过程检索IPC数据和控制信息，并将其重叠在新的IPC对象上。 每个进程数据恢复。

公开(公告)号：US07623290B2

公开(公告)日：2009-11-24

申请号：US11353928

申请日：2006-02-14

Applicant: Ernie Liang ,  Rajeev Mishra ,  Matt Ford ,  Matt Tivnon ,  Ron Bergold ,  Jonas Brickus ,  Bryan Vollmer

Inventor： Ernie Liang ,  Rajeev Mishra ,  Matt Ford ,  Matt Tivnon ,  Ron Bergold ,  Jonas Brickus ,  Bryan Vollmer

IPC: G03B21/56

CPC classification number: G03B21/56

Abstract: A portable screen assembly includes a first side support and a second sides support, where the first side support and the second side support are connected to a fabric. The portable screen assembly also includes a center support brace connected to the fabric. A first support leg extends downward from the first side support and the a second support leg extends downward from the second side support. A motorized portable screen assembly includes a fabric, a first side support, a second side support, and a center support assembly. The fabric is connected to the first side support and the second side support. An expandable support brace is connected to the first side support, the second side support, and the center support assembly. An automatic deployment mechanism is connected to the expandable support brace, and the automatic deployment mechanism drives the expandable support brace to open in a horizontal direction.

Abstract translation: 便携式屏幕组件包括第一侧支撑件和第二侧支撑件，其中第一侧支撑件和第二侧支撑件连接到织物。 便携式屏幕组件还包括连接到织物的中心支撑支架。 第一支撑腿从第一侧支撑件向下延伸，并且第二支撑腿部从第二侧支撑件向下延伸。 电动便携式屏幕组件包括织物，第一侧支撑件，第二侧支撑件和中心支撑组件。 织物连接到第一侧支撑件和第二侧支撑件。 可扩展支撑支架连接到第一侧支撑件，第二侧支撑件和中心支撑组件。 自动展开机构连接到可扩展支撑支架上，并且自动展开机构驱动可扩展支撑支架沿水平方向打开。