公开(公告)号：US20190199639A1

公开(公告)日：2019-06-27

申请号：US16287521

申请日：2019-02-27

Applicant: Oracle International Corporation

Inventor： VIJAY SRIDHARAN ,  RICHARD FRANK ,  JIA SHI ,  KOTHANDA UMAMAGESWARAN ,  JUAN LOAIZA ,  ALEXANDER TSUKERMAN ,  BANG NGUYEN ,  SUMANTA CHATTERJEE

IPC: H04L12/851 ,  H04L29/08

Abstract: A method and apparatus for intelligent network resource manager for distributed computing systems is provided. A first priority is assigned to a first virtual channel set that includes at least two virtual channels of a plurality of virtual channels associated with a physical communication channel. A second priority is assigned to a second virtual channel set that includes at least one virtual channel of the plurality of virtual channels. The first virtual channel set has more virtual channels than the second virtual channel set. Outbound messages of the first priority are directed to virtual channels of the first virtual channel set. Outbound messages of the second priority are directed to virtual channels of the second virtual channel set. The virtual channels are processed in a round-robin order, where processing includes sending the outbound messages over the physical communication channel.

公开(公告)号：US20200169508A9

公开(公告)日：2020-05-28

申请号：US16287521

申请日：2019-02-27

Applicant: Oracle International Corporation

Inventor： VIJAY SRIDHARAN ,  RICHARD FRANK ,  JIA SHI ,  KOTHANDA UMAMAGESWARAN ,  JUAN LOAIZA ,  ALEXANDER TSUKERMAN ,  BANG NGUYEN ,  SUMANTA CHATTERJEE

IPC: H04L12/851 ,  H04L29/08

Abstract: A method and apparatus for intelligent network resource manager for distributed computing systems is provided. A first priority is assigned to a first virtual channel set that includes at least two virtual channels of a plurality of virtual channels associated with a physical communication channel. A second priority is assigned to a second virtual channel set that includes at least one virtual channel of the plurality of virtual channels. The first virtual channel set has more virtual channels than the second virtual channel set. Outbound messages of the first priority are directed to virtual channels of the first virtual channel set. Outbound messages of the second priority are directed to virtual channels of the second virtual channel set. The virtual channels are processed in a round-robin order, where processing includes sending the outbound messages over the physical communication channel.

公开(公告)号：US20160092507A1

公开(公告)日：2016-03-31

申请号：US14726372

申请日：2015-05-29

Applicant: Oracle International Corporation

Inventor： ADRIAN NG ,  KRISHNAN MEIYYAPPAN ,  ALEXANDER TSUKERMAN ,  DMITRY POTAPOV

IPC: G06F17/30 ,  G06F3/06

Abstract: Techniques for optimizing a query with an extrema function are provided. In main memory, a data summary is maintained for a plurality of extents stored by at least one storage server. The data summary includes an extent minimum value and an extent maximum value for one or more columns. A storage server request is received, from a database server, based on a query with an extrema function applied to a particular column of a particular table. The data summaries for a set of relevant extents are processed by maintaining at least one global extrema value corresponding to the extrema function and, for each relevant extent of the set of relevant extents, determining whether to scan records of the relevant extent based on at least one of the global extrema value and an extent summary value of the data summary of the relevant extent.

Abstract translation: 提供了使用极值函数优化查询的技术。 在主存储器中，维护由至少一个存储服务器存储的多个范围的数据摘要。 数据摘要包括一个或多个列的范围最小值和范围最大值。 基于具有应用于特定表的特定列的极值函数的查询从数据库服务器接收存储服务器请求。 通过维持与极值函数相对应的至少一个全局极值，对相关范围的集合进行数据摘要，并且对于相关范围集合的每个相关范围，决定是否至少基于至少扫描相关范围的记录 全局极值的一个值和相关范围的数据摘要的范围总结值。