公开(公告)号：US09934326B1

公开(公告)日：2018-04-03

申请号：US14674087

申请日：2015-03-31

申请人： EMC CORPORATION

发明人： David Ohsie ,  Cheuk Lam

IPC分类号： G06F17/30 ,  H04L29/08 ,  H04L12/26

CPC分类号： G06F17/30958 ,  G06F17/30091 ,  H04L41/12 ,  H04L43/045 ,  H04L43/0888 ,  H04L67/10

摘要： Methods and apparatus for distributed evaluation of expressions defined by a domain model including classes with attributes and relationships among the classes. Messages containing attribute updates are sent and processed using vertex-centric graph processing technique to evaluate expressions and determine a state of the system.

公开(公告)号：US09652310B1

公开(公告)日：2017-05-16

申请号：US14041229

申请日：2013-09-30

申请人： EMC Corporation

发明人： Stephen G. Graham ,  Cheuk Lam

IPC分类号： G06F3/00 ,  G06F9/44 ,  G06F9/46 ,  G06F13/00 ,  G06F9/54

CPC分类号： G06F9/546

摘要： Example embodiments of the present invention provide a method and a system for using consistent-hashing to ensure proper sequencing of message processing in a scale-out environment. The method includes receiving a stream of a plurality of messages and performing a consistent-hash on each message of the plurality of messages. Each message then may be distributed toward a respective downstream worker of a plurality of downstream workers for processing according to results of the hash.

公开(公告)号：US09053000B1

公开(公告)日：2015-06-09

申请号：US13628706

申请日：2012-09-27

申请人： EMC CORPORATION

发明人： Cheuk Lam ,  Sathyanarayana Singh ,  Prasanna S. Patil ,  Chao-Wei Ou ,  David W. Moran ,  Steve J. Song

IPC分类号： G06F11/00

CPC分类号： G06F11/079 ,  G06F11/0709

摘要： Methods and apparatus to provide event correlation based on causality equivalence. In one embodiment, a raw notification and a causality notification are generated for a raw event. The causality notification corresponds to a causality equivalence class in a plurality of causality equivalence classes.

摘要翻译： 基于因果等价提供事件相关的方法和装置。 在一个实施例中，为原始事件生成原始通知和因果通知。 因果通知对应于多个因果等价类中的因果等价类。

公开(公告)号：US10176071B1

公开(公告)日：2019-01-08

申请号：US14674134

申请日：2015-03-31

申请人： EMC CORPORATION

发明人： David Ohsie ,  Cheuk Lam

IPC分类号： G06F11/30 ,  G06F11/34

摘要： Methods and apparatus for performing event correlation using codebook processing including determining a most probable set of problems for observed symptoms in a system. In embodiments, a correlation matrix is received which has managed objects. Hypotheses are defined as a subset of problems having observed symptoms based on the correlation matrix and evaluated.

公开(公告)号：US09811588B1

公开(公告)日：2017-11-07

申请号：US14674128

申请日：2015-03-31

申请人： EMC CORPORATION

发明人： David Ohsie ,  Cheuk Lam

IPC分类号： G06F17/30 ,  G06F17/27

CPC分类号： G06F17/2785 ,  G06F11/30 ,  G06F17/3051 ,  G06F17/30864 ,  G06F17/30917

摘要： Methods and apparatus for generating a causality matrix using vertex-centric processing framework to be used by a codebook correlation engine to determine a set of problems to explain active symptoms in a system. Methods and apparatus for calculating impacts of problems using vertex-centric processing framework.

公开(公告)号：US09372775B1

公开(公告)日：2016-06-21

申请号：US14483249

申请日：2014-09-11

申请人： EMC Corporation

发明人： Cheuk Lam

IPC分类号： G06F11/00 ,  G06F11/34 ,  G06F11/16

CPC分类号： G06F11/3409 ,  G06F11/008 ,  G06F11/1076 ,  G06F11/1666

摘要： Methods and apparatus for generating at risk probabilities for a pre-integrated cloud computing system. In one embodiment, a system determines a revised overall risk index after at least two component failures in at least two of the compute domain, storage domain, and storage paths to assist a user in selecting a first one of the at least two component failures to fix first.

摘要翻译： 用于生成预集成云计算系统的风险概率的方法和装置。 在一个实施例中，系统在至少两个计算域，存储域和存储路径中的至少两个组件故障之后确定经修改的整体风险指数，以帮助用户选择至少两个组件故障中的第一个组件故障 先修好