Patents by Inventor Neal Fachan
Neal Fachan 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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Publication number: 20230092908Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.Type: ApplicationFiled: November 11, 2022Publication date: March 23, 2023Applicant: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Neal Fachan, Samuel James McKelvie, Laurion Darrell Burchall, Christopher Richard Newcombe, Pradeep Jnana Madhavarapu, Benjamin Tobler, James McClellan Corey
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Patent number: 11500852Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.Type: GrantFiled: June 26, 2020Date of Patent: November 15, 2022Assignee: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Neal Fachan, Samuel James McKelvie, Laurion Darrell Burchall, Christopher Richard Newcombe, Pradeep Jnana Madhavarapu, Benjamin Tobler, James McClellan Corey
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Patent number: 11030055Abstract: A distributed database system may implement fast crash recovery. Upon recovery from a database head node failure, a connection with one or more storage nodes of a distributed storage system storing data for a database implemented by the database head node may be established. Upon establishment of the connection with the storage nodes, that database may be made available for access, such as for various access requests. In various embodiments, redo log records may not be replayed in order to provide access to the database. In at least some embodiments, the storage nodes may provide a current state of data stored for the database in response to requests.Type: GrantFiled: March 7, 2014Date of Patent: June 8, 2021Assignee: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Laurion Darrell Burchall, Pradeep Jnana Madhavarapu, Neal Fachan
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Patent number: 10860547Abstract: A transactional block storage system is provided which is capable of supporting a single-phase commit for data writes specifying a protected storage unit. The storage system includes a data storage map that logically links the protected data storage unit to two or more block storage units associated with a layer of the protected data storage unit. The storage system also includes an address abstraction layer which translates write requests to the block storage units and resolves whether those write requests are atomically committed to the storage system in a single phase transaction. The address abstraction layer is further configured to detected when a block storage unit becomes unavailable during a transaction and create a cleaning kit for that block in order to prevent data loss. Additionally, the address abstraction layer facilitates moving, copying, and merging of block storage units without global locking in the storage system.Type: GrantFiled: October 4, 2018Date of Patent: December 8, 2020Assignee: Qumulo, Inc.Inventors: Aaron Passey, Neal Fachan, Peter Godman
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Publication number: 20200327114Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Neal Fachan, Samuel James McKelvie, Laurion Darrell Burchall, Christopher Richard Newcombe, Pradeep Jnana Madhavarapu, Benjamin Tobler, James McClellan Corey
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Patent number: 10698881Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.Type: GrantFiled: December 5, 2016Date of Patent: June 30, 2020Assignee: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Neal Fachan, Samuel James McKelvie, Laurion Darrell Burchall, Christopher Richard Newcombe, Pradeep Jnana Madhavarapu, Benjamin Tobler, James McClellan Corey
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Publication number: 20190251065Abstract: A transactional block storage system is provided which is capable of supporting a single-phase commit for data writes specifying a protected storage unit. The storage system includes a data storage map that logically links the protected data storage unit to two or more block storage units associated with a layer of the protected data storage unit. The storage system also includes an address abstraction layer which translates write requests to the block storage units and resolves whether those write requests are atomically committed to the storage system in a single phase transaction. The address abstraction layer is further configured to detected when a block storage unit becomes unavailable during a transaction and create a cleaning kit for that block in order to prevent data loss. Additionally, the address abstraction layer facilitates moving, copying, and merging of block storage units without global locking in the storage system.Type: ApplicationFiled: October 4, 2018Publication date: August 15, 2019Inventors: Aaron Passey, Neal Fachan, Peter Godman
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Patent number: 10331655Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. Upon detection of a coalesce event for a particular data page, log records linked to the particular data page may be applied to generate the particular data page in its current state. Detecting the coalesce event may be a determination that the number of log records linked to the particular data page exceeds a threshold.Type: GrantFiled: June 5, 2017Date of Patent: June 25, 2019Assignee: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Pradeep Jnana Madhavarapu, Laurion Darrell Burchall, Neal Fachan
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Patent number: 10180951Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. A snapshot may be generated that is usable to read the data as of a state corresponding to the snapshot. Generating the snapshot may include generating metadata that is indicative of a particular log identifier of a particular one of the log records. Generating the snapshot may be performed without additional reading, copying, or writing of the data.Type: GrantFiled: March 7, 2014Date of Patent: January 15, 2019Assignee: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Pradeep Jnana Madhavarapu, Samuel James McKelvie, Neal Fachan
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Patent number: 10095708Abstract: A transactional block storage system is provided which is capable of supporting a single-phase commit for data writes specifying a protected storage unit. The storage system includes a data storage map that logically links the protected data storage unit to two or more block storage units associated with a layer of the protected data storage unit. The storage system also includes an address abstraction layer which translates write requests to the block storage units and resolves whether those write requests are atomically committed to the storage system in a single phase transaction. The address abstraction layer is further configured to detected when a block storage unit becomes unavailable during a transaction and create a cleaning kit for that block in order to prevent data loss. Additionally, the address abstraction layer facilitates moving, copying, and merging of block storage units without global locking in the storage system.Type: GrantFiled: March 13, 2015Date of Patent: October 9, 2018Assignee: Qumulo, Inc.Inventors: Aaron Passey, Neal Fachan, Peter Godman
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Patent number: 10031813Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. The plurality of log records may be transformed (e.g., cropped, prune, reduce, fused, deleted, merged, added, etc.).Type: GrantFiled: November 21, 2016Date of Patent: July 24, 2018Assignee: Amazon Technologies, Inc.Inventors: Pradeep Jnana Madhavarapu, Neal Fachan, Anurag Windlass Gupta, Samuel James McKelvie
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Publication number: 20170270152Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. Upon detection of a coalesce event for a particular data page, log records linked to the particular data page may be applied to generate the particular data page in its current state. Detecting the coalesce event may be a determination that the number of log records linked to the particular data page exceeds a threshold.Type: ApplicationFiled: June 5, 2017Publication date: September 21, 2017Applicant: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Pradeep Jnana Madhavarapu, Laurion Darrell Burchall, Neal Fachan
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Patent number: 9672237Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. Upon detection of a coalesce event for a particular data page, log records linked to the particular data page may be applied to generate the particular data page in its current state. Detecting the coalesce event may be a determination that the number of log records linked to the particular data page exceeds a threshold.Type: GrantFiled: March 7, 2014Date of Patent: June 6, 2017Assignee: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Pradeep Jnana Madhavarapu, Laurion Darrell Burchall, Neal Fachan
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Publication number: 20170083565Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.Type: ApplicationFiled: December 5, 2016Publication date: March 23, 2017Applicant: Amazon Technologies, Inc.Inventors: ANURAG WINDLASS GUPTA, NEAL FACHAN, SAMUEL JAMES MCKELVIE, LAURION DARRELL BURCHALL, CHRISTOPHER RICHARD NEWCOMBE, PRADEEP JNANA MADHAVARAPU, BENJAMIN TOBLER, JAMES MCCLELLAN COREY
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Publication number: 20170075767Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. The plurality of log records may be transformed (e.g., cropped, prune, reduce, fused, deleted, merged, added, etc.).Type: ApplicationFiled: November 21, 2016Publication date: March 16, 2017Applicant: Amazon Technologies, Inc.Inventors: PRADEEP JNANA MADHAVARAPU, NEAL FACHAN, ANURAG WINDLASS GUPTA, SAMUEL JAMES MCKELVIE
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Patent number: 9514007Abstract: A database system may include a database service and a separate distributed storage service. The database service (or a database engine head node thereof) may be responsible for query parsing, optimization, and execution, transactionality, and consistency, while the storage service may be responsible for generating data pages from redo log records and for durability of those data pages. For example, in response to a write request directed to a particular data page, the database engine head node may generate a redo log record and send it, but not the data page, to a storage service node. The storage service node may store the redo log record and return a write acknowledgement to the database service prior to applying the redo log record. The server node may apply the redo log record and other redo log records to a previously stored version of the data page to create a current version.Type: GrantFiled: March 7, 2014Date of Patent: December 6, 2016Assignee: Amazon Technologies, Inc.Inventors: Anurag Windlass Gupta, Neal Fachan, Samuel James McKelvie, Laurion Darrell Burchall, Christopher Richard Newcombe, Pradeep Jnana Madhavarapu, Benjamin Tobler, James McClellan Corey
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Patent number: 9501501Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. The plurality of log records may be transformed (e.g., cropped, prune, reduce, fused, deleted, merged, added, etc.).Type: GrantFiled: March 7, 2014Date of Patent: November 22, 2016Assignee: Amazon Technologies, Inc.Inventors: Pradeep Jnana Madhavarapu, Neal Fachan, Anurag Windlass Gupta, Samuel James McKelvie
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Publication number: 20150310054Abstract: A transactional block storage system is provided which is capable of supporting a single-phase commit for data writes specifying a protected storage unit. The storage system includes a data storage map that logically links the protected data storage unit to two or more block storage units associated with a layer of the protected data storage unit. The storage system also includes an address abstraction layer which translates write requests to the block storage units and resolves whether those write requests are atomically committed to the storage system in a single phase transaction. The address abstraction layer is further configured to detected when a block storage unit becomes unavailable during a transaction and create a cleaning kit for that block in order to prevent data loss. Additionally, the address abstraction layer facilitates moving, copying, and merging of block storage units without global locking in the storage system.Type: ApplicationFiled: March 13, 2015Publication date: October 29, 2015Inventors: Aaron Passey, Neal Fachan, Peter Godman
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Publication number: 20140279920Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. The plurality of log records may be transformed (e.g., cropped, prune, reduce, fused, deleted, merged, added, etc.).Type: ApplicationFiled: March 7, 2014Publication date: September 18, 2014Applicant: Amazon Technologies, Inc.Inventors: Pradeep Jnana MADHAVARAPU, Neal FACHAN, Anurag Windlass GUPTA, Samuel James MCKELVIE
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Publication number: 20140279931Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. Upon detection of a coalesce event for a particular data page, log records linked to the particular data page may be applied to generate the particular data page in its current state. Detecting the coalesce event may be a determination that the number of log records linked to the particular data page exceeds a threshold.Type: ApplicationFiled: March 7, 2014Publication date: September 18, 2014Applicant: AMAZON TECHNOLOGIES, INC.Inventors: ANURAG WINDLASS GUPTA, PRADEEP JNANA MADHAVARAPU, LAURION DARRELL BURCHALL, NEAL FACHAN