Patents by Inventor Michael A. Ten-Pow
Michael A. Ten-Pow 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: 11947510Abstract: A distributed storage system may store data object instances in persistent storage and may store keymap information for those data object instances in a distributed hash table on multiple computing nodes. Each data object instance may include a composite key containing a user key. The keymap information for each data object instance may map the user key to a locator and the locator to the data object instance. A request to store or retrieve keymap information for a data object instance may be routed to a particular computing node based on a consistent hashing scheme in which a hash function is applied to a portion of the composite key of the data object instance. Thus, related entries may be clustered on the same computing nodes. The portion of the key to which the hash function is applied may include a pre-determined number of bits or be identified using a delimiter.Type: GrantFiled: March 10, 2023Date of Patent: April 2, 2024Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 11899595Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: GrantFiled: September 2, 2022Date of Patent: February 13, 2024Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20230281181Abstract: A distributed storage system may store data object instances in persistent storage and may store keymap information for those data object instances in a distributed hash table on multiple computing nodes. Each data object instance may include a composite key containing a user key. The keymap information for each data object instance may map the user key to a locator and the locator to the data object instance. A request to store or retrieve keymap information for a data object instance may be routed to a particular computing node based on a consistent hashing scheme in which a hash function is applied to a portion of the composite key of the data object instance. Thus, related entries may be clustered on the same computing nodes. The portion of the key to which the hash function is applied may include a pre-determined number of bits or be identified using a delimiter.Type: ApplicationFiled: March 10, 2023Publication date: September 7, 2023Applicant: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20230092106Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: ApplicationFiled: September 2, 2022Publication date: March 23, 2023Applicant: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 11604781Abstract: A distributed storage system may store data object instances in persistent storage and may store keymap information for those data object instances in a distributed hash table on multiple computing nodes. Each data object instance may include a composite key containing a user key. The keymap information for each data object instance may map the user key to a locator and the locator to the data object instance. A request to store or retrieve keymap information for a data object instance may be routed to a particular computing node based on a consistent hashing scheme in which a hash function is applied to a portion of the composite key of the data object instance. Thus, related entries may be clustered on the same computing nodes. The portion of the key to which the hash function is applied may include a pre-determined number of bits or be identified using a delimiter.Type: GrantFiled: September 17, 2021Date of Patent: March 14, 2023Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 11436163Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: GrantFiled: January 10, 2020Date of Patent: September 6, 2022Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20220075767Abstract: A distributed storage system may store data object instances in persistent storage and may store keymap information for those data object instances in a distributed hash table on multiple computing nodes. Each data object instance may include a composite key containing a user key. The keymap information for each data object instance may map the user key to a locator and the locator to the data object instance. A request to store or retrieve keymap information for a data object instance may be routed to a particular computing node based on a consistent hashing scheme in which a hash function is applied to a portion of the composite key of the data object instance. Thus, related entries may be clustered on the same computing nodes. The portion of the key to which the hash function is applied may include a pre-determined number of bits or be identified using a delimiter.Type: ApplicationFiled: September 17, 2021Publication date: March 10, 2022Applicant: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 11126605Abstract: A distributed storage system may store data object instances in persistent storage and may store keymap information for those data object instances in a distributed hash table on multiple computing nodes. Each data object instance may include a composite key containing a user key. The keymap information for each data object instance may map the user key to a locator and the locator to the data object instance. A request to store or retrieve keymap information for a data object instance may be routed to a particular computing node based on a consistent hashing scheme in which a hash function is applied to a portion of the composite key of the data object instance. Thus, related entries may be clustered on the same computing nodes. The portion of the key to which the hash function is applied may include a pre-determined number of bits or be identified using a delimiter.Type: GrantFiled: March 15, 2019Date of Patent: September 21, 2021Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20200151114Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: ApplicationFiled: January 10, 2020Publication date: May 14, 2020Applicant: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 10534726Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: GrantFiled: May 14, 2018Date of Patent: January 14, 2020Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 10528537Abstract: A distributed storage system may store data object instances in persistent storage and may cache keymap information for those data object instances. The system may cache a latest symbolic key entry for some user keys of the data object instances. When a request is made for the latest version of stored data object instances having a specified user key, the latest version may be determined dependent on whether a latest symbolic key entry exists for the specified user key, and keymap information for the latest version may be returned. When storing keymap information, a flag may be set to indicate that a corresponding latest symbolic key entry should be updated. The system may delete a latest symbolic key entry for a particular user key from the cache in response to determining that no other requests involving the keymap information for data object instances having the particular user key are pending.Type: GrantFiled: January 22, 2018Date of Patent: January 7, 2020Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20190213179Abstract: A distributed storage system may store data object instances in persistent storage and may store keymap information for those data object instances in a distributed hash table on multiple computing nodes. Each data object instance may include a composite key containing a user key. The keymap information for each data object instance may map the user key to a locator and the locator to the data object instance. A request to store or retrieve keymap information for a data object instance may be routed to a particular computing node based on a consistent hashing scheme in which a hash function is applied to a portion of the composite key of the data object instance. Thus, related entries may be clustered on the same computing nodes. The portion of the key to which the hash function is applied may include a pre-determined number of bits or be identified using a delimiter.Type: ApplicationFiled: March 15, 2019Publication date: July 11, 2019Applicant: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 10235405Abstract: A distributed storage system may store data object instances in persistent storage and may store keymap information for those data object instances in a distributed hash table on multiple computing nodes. Each data object instance may include a composite key containing a user key. The keymap information for each data object instance may map the user key to a locator and the locator to the data object instance. A request to store or retrieve keymap information for a data object instance may be routed to a particular computing node based on a consistent hashing scheme in which a hash function is applied to a portion of the composite key of the data object instance. Thus, related entries may be clustered on the same computing nodes. The portion of the key to which the hash function is applied may include a pre-determined number of bits or be identified using a delimiter.Type: GrantFiled: September 29, 2014Date of Patent: March 19, 2019Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20180260341Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: ApplicationFiled: May 14, 2018Publication date: September 13, 2018Applicant: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20180189336Abstract: A distributed storage system may store data object instances in persistent storage and may cache keymap information for those data object instances. The system may cache a latest symbolic key entry for some user keys of the data object instances. When a request is made for the latest version of stored data object instances having a specified user key, the latest version may be determined dependent on whether a latest symbolic key entry exists for the specified user key, and keymap information for the latest version may be returned. When storing keymap information, a flag may be set to indicate that a corresponding latest symbolic key entry should be updated. The system may delete a latest symbolic key entry for a particular user key from the cache in response to determining that no other requests involving the keymap information for data object instances having the particular user key are pending.Type: ApplicationFiled: January 22, 2018Publication date: July 5, 2018Applicant: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 9971706Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: GrantFiled: February 6, 2017Date of Patent: May 15, 2018Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Patent number: 9928247Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects through the use of delete marker objects. In response to a delete operation specifying a key, but not a version identifier, the storage system may create a delete marker object that is stored as the latest object version of the key. In response to performing a subsequent mutating operation, or at pre-determined time intervals, the storage system may perform a local and/or a global analysis of the delete marker objects stored in the system (and/or metadata associated with those delete marker objects) to determine whether any of them are no longer needed to ensure correct operation of the system. The analysis may apply one or more reap conditions to delete marker objects and/or metadata to identify extraneous delete marker objects, removing those that meet one or more reap conditions from storage.Type: GrantFiled: June 1, 2015Date of Patent: March 27, 2018Assignee: Amazon Technologies, Inc.Inventors: Michael A. Ten-Pow, Derek Ernest Denny-Brown, II, Jason G. McHugh, Praveen Kumar Gattu
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Patent number: 9875262Abstract: A distributed storage system may store data object instances in persistent storage and may cache keymap information for those data object instances. The system may cache a latest symbolic key entry for some user keys of the data object instances. When a request is made for the latest version of stored data object instances having a specified user key, the latest version may be determined dependent on whether a latest symbolic key entry exists for the specified user key, and keymap information for the latest version may be returned. When storing keymap information, a flag may be set to indicate that a corresponding latest symbolic key entry should be updated. The system may delete a latest symbolic key entry for a particular user key from the cache in response to determining that no other requests involving the keymap information for data object instances having the particular user key are pending.Type: GrantFiled: June 8, 2015Date of Patent: January 23, 2018Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II
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Publication number: 20170147512Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: ApplicationFiled: February 6, 2017Publication date: May 25, 2017Applicant: Amazon Technologies, Inc.Inventors: JASON G. MCHUGH, PRAVEEN KUMAR GATTU, MICHAEL A. TEN-POW, DEREK ERNEST DENNY-BROWN, II
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Patent number: 9563578Abstract: Systems and methods for providing object versioning in a storage system may support the logical deletion of stored objects. In response to a delete operation specifying both a user key and a version identifier, the storage system may permanently delete the specified version of an object having the specified key. In response to a delete operation specifying a user key, but not a version identifier, the storage system may create a delete marker object that does not contain object data, and may generate a new version identifier for the delete marker. The delete marker may be stored as the latest object version of the user key, and may be addressable in the storage system using a composite key comprising the user key and the new version identifier. Subsequent attempts to retrieve the user key without specifying a version identifier may return an error, although the object was not actually deleted.Type: GrantFiled: January 11, 2016Date of Patent: February 7, 2017Assignee: Amazon Technologies, Inc.Inventors: Jason G. McHugh, Praveen Kumar Gattu, Michael A. Ten-Pow, Derek Ernest Denny-Brown, II