Patents by Inventor Semen Ustimenko
Semen Ustimenko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11775527Abstract: Region summaries of database data are stored in persistent memory of a storage cell. Because the region summaries are stored in persistent memory, when a storage cell is powered off and data in volatile memory is not retained, region summaries are nevertheless preserved in persistent memory. When the storage cell comes online, the region summaries already exist and may be used without the delay attendant to regenerating the region summaries stored in volatile memory.Type: GrantFiled: June 24, 2021Date of Patent: October 3, 2023Assignee: Oracle International CorporationInventors: Krishnan Meiyyappan, Semen Ustimenko, Adrian Tsz Him Ng, Kothanda Umamageswaran
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Publication number: 20210326343Abstract: Region summaries of database data are stored in persistent memory of a storage cell. Because the region summaries are stored in persistent memory, when a storage cell is powered off and data in volatile memory is not retained, region summaries are nevertheless preserved in persistent memory. When the storage cell comes online, the region summaries already exist and may be used without the delay attendant to regenerating the region summaries stored in volatile memory.Type: ApplicationFiled: June 24, 2021Publication date: October 21, 2021Inventors: Krishnan Meiyyappan, Semen Ustimenko, Adrian Tsz Him Ng, Kothanda Umamageswaran
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Patent number: 11086876Abstract: Region summaries of database data are stored in persistent memory of a storage cell. Because the region summaries are stored in persistent memory, when a storage cell is powered off and data in volatile memory is not retained, region summaries are nevertheless preserved in persistent memory. When the storage cell comes online, the region summaries already exist and may be used without the delay attendant to regenerating the region summaries stored in volatile memory.Type: GrantFiled: September 29, 2017Date of Patent: August 10, 2021Assignee: Oracle International CorporationInventors: Krishnan Meiyyappan, Semen Ustimenko, Adrian Tsz Him Ng, Kothanda Umamageswaran
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Patent number: 10936616Abstract: A storage system communicatively coupled to a database management system (DBMS performs storage-side scanning of data sources that are not stored in native database storage format of the DBMS. Data sources for external tables are accessible in a storage system referred to as a distributed data access system (DDAS), e.g. a Hadoop Distributed File System. To execute a query that references an external table, a DBMS first generates an execution plan. The DDAS supplies the DBMS with information that specifies each portion of the data source, and specifies which data node to use to access the portion. The DBMS sends a request for each portion to the respective data node, requesting that the data node generate rows from data in the portion. The request may specify scanning criteria, specifying one or more columns to project and/or filter on, and code modules for the data node to execute to generate records.Type: GrantFiled: June 8, 2015Date of Patent: March 2, 2021Assignee: Oracle International CorporationInventors: Dmitry Mikhailovich Potapov, Krishnan Meiyyappan, Alexander Tsukerman, Kothanda Umamageswaran, Semen Ustimenko, Wei Zhang, Adrian Tsz Him Ng, Daniel McClary, Allen Brumm, James Stenoish, Robert K. Abbott
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Patent number: 10802766Abstract: A shared storage architecture persistently stores database files in non-volatile random access memories (NVRAMs) of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS not only collectively store database data on NVRAMs of the computing nodes, but also host database server instances that process queries in parallel, host database sessions and database processes, and together manage access to a database stored on the NVRAMs of the computing nodes. To perform a data block read operation from persistent storage, a data block may be transferred directly over a network between NVRAM of a computing node that persistently stores the data block to a database buffer in non-volatile RAM of another computing node that requests the data block. The transfer is accomplished using remote direct memory access (“RDMA).Type: GrantFiled: September 29, 2017Date of Patent: October 13, 2020Assignee: Oracle International CorporationInventors: Nilesh Choudhury, Kothanda Umamageswaran, Krishnan Meiyyappan, Jia Shi, Vijay Sridharan, Zuoyu Tao, Kai Zhang, Semen Ustimenko, Salini Selvaraj Kowsalya, Somayeh Sardashti
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Publication number: 20190102433Abstract: Region summaries of database data are stored in persistent memory of a storage cell. Because the region summaries are stored in persistent memory, when a storage cell is powered off and data in volatile memory is not retained, region summaries are nevertheless preserved in persistent memory. When the storage cell comes online, the region summaries already exist and may be used without the delay attendant to regenerating the region summaries stored in volatile memory.Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Inventors: Krishnan Meiyyappan, Semen Ustimenko, Adrian Tsz Him Ng, Kothanda Umamageswaran
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Publication number: 20190102113Abstract: A shared storage architecture persistently stores database files in non-volatile random access memories (NVRAMs) of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS not only collectively store database data on NVRAMs of the computing nodes, but also host database server instances that process queries in parallel, host database sessions and database processes, and together manage access to a database stored on the NVRAMs of the computing nodes. To perform a data block read operation from persistent storage, a data block may be transferred directly over a network between NVRAM of a computing node that persistently stores the data block to a database buffer in non-volatile RAM of another computing node that requests the data block. The transfer is accomplished using remote direct memory access (“RDMA).Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Inventors: Nilesh Choudhury, Kothanda Umamageswaran, Krishnan Meiyyappan, Jia Shi, Vijay Sridharan, Zuoyu Tao, Kai Zhang, Semen Ustimenko, Salini Selvaraj Kowsalya, Somayeh Sardashti
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Patent number: 9898490Abstract: Techniques are described herein for supporting multiple versions of a database server within a database machine comprising a separate database layer and storage layer. In an embodiment, the database layer includes compute nodes each hosting one or more instances of a database server. The storage layer includes storage nodes each hosting one or more instances of a storage server, also referred to herein as a “cell server.” In general, the database servers may receive data requests, such as SQL queries, from client applications and service the requests in coordination with the cell servers of the storage layer.Type: GrantFiled: June 24, 2014Date of Patent: February 20, 2018Assignee: Oracle International CorporationInventors: Umesh Panchaksharaiah, Krishnan Meiyyappan, Kothanda Umamageswaran, Alex Tsukerman, Semen Ustimenko, Adrian Ng, Devang Mundhra, Yinian Qi
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Patent number: 9715517Abstract: Techniques are described herein for supporting multiple versions of a database server within a database machine comprising a separate database layer and storage layer. In an embodiment, the database layer includes compute nodes each hosting one or more instances of a database server. The storage layer includes storage nodes each hosting one or more instances of a storage server, also referred to herein as a “cell server.” In general, the database servers may receive data requests, such as SQL queries, from client applications and service the requests in coordination with the cell servers of the storage layer.Type: GrantFiled: June 24, 2014Date of Patent: July 25, 2017Assignee: Oracle International CorporationInventors: Umesh Panchaksharaiah, Krishnan Meiyyappan, Kothanda Umamageswaran, Alex Tsukerman, Semen Ustimenko, Adrian Ng, Devang Mundhra, Yinian Qi
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Publication number: 20150356158Abstract: A storage system communicatively coupled to a DBMS performs storage-side scanning of data sources that are not stored in the native database storage format of the DBMS. Data sources for external tables are accessible in a storage system referred to herein as a distributed data access system, e.g. a Hadoop Distributed File System. To execute a query that references an external table, a DBMS first generates an execution plan. The distributed data access system supplies the DBMS with information that specifies each portion of the data source, and specifies which data node to use to access the portion. The DBMS sends a request for each portion to the respective data node, the request requesting that the data node generate rows from data in the portion. The request may specify scanning criteria, specifying one or more columns to project and/or filter on. The request may also specify code modules for the data node to execute to generate rows or records and columns.Type: ApplicationFiled: June 8, 2015Publication date: December 10, 2015Inventors: Dmitry Mikhailovich Potapov, Krishnan Meiyyappan, Alexander Tsukerman, Kothanda Umamageswaran, Semen Ustimenko, Wei Zhang, Adrian Tsz Him Ng, Daniel McClary, Allen Brumm, James Stenoish, Robert K. Abbott
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Publication number: 20150088880Abstract: Techniques are described herein for supporting multiple versions of a database server within a database machine comprising a separate database layer and storage layer. In an embodiment, the database layer includes compute nodes each hosting one or more instances of a database server. The storage layer includes storage nodes each hosting one or more instances of a storage server, also referred to herein as a “cell server.” In general, the database servers may receive data requests, such as SQL queries, from client applications and service the requests in coordination with the cell servers of the storage layer.Type: ApplicationFiled: June 24, 2014Publication date: March 26, 2015Inventors: Umesh Panchaksharaiah, Krishnan Meiyyappan, Kothanda Umamageswaran, Alex Tsukerman, Semen Ustimenko, Adrian Ng, Devang Mundhra, Yinian Qi