Timothy D Cole

US Patent:

20180260411, Sep 13, 2018

Filed:

May 14, 2018

Appl. No.:

15/979291

Inventors:

- Seattle WA, US
Timothy Daniel Cole - Seattle WA, US
Aaron Gifford Freshwater - Seattle WA, US
Allan Henry Vermeulen - Seattle WA, US

Assignee:

Amazon Technologies, Inc. - Seattle WA

International Classification:

G06F 17/30
G06F 9/46

Abstract:

A transaction request is received at a journal-based state management system. The transaction request includes a register processing section indicating an operation to be performed at a journal register allocated to the transaction submitter to store state information of an application. Based on the results of a conflict detection operation performed with respect to the transaction request and on the result of the operation on the journal register, the transaction request is accepted for commit. The value of the journal register is stored at a node of the state management system and provided to the transaction submitter.

US Patent:

20170091227, Mar 30, 2017

Filed:

Dec 12, 2016

Appl. No.:

15/376410

Inventors:

- Seattle WA, US
TIMOTHY ANDREW RATH - DES MOINES WA, US
TIMOTHY DANIEL COLE - SEATTLE WA, US
KIRAN KUMAR MUNISWAMY REDDY - SAMMAMISH WA, US

Assignee:

Amazon Technologies, Inc. - Seattle WA

International Classification:

G06F 17/30

Abstract:

At a client-side component of a storage group, a read descriptor generated in response to a read request directed to a first data store is received. The read descriptor includes a state transition indicator corresponding to a write that has been applied at the first data store. A write descriptor indicative of a write that depends on a result of the read request is generated at the client-side component. The read descriptor and the write descriptor are included in a commit request for a candidate transaction at the client-side component, and transmitted to a transaction manager.

US Patent:

20160070589, Mar 10, 2016

Filed:

Sep 10, 2014

Appl. No.:

14/482677

Inventors:

- Reno NV, US
PARIKSHIT S. POL - REDMOND WA, US
TIMOTHY ANDREW RATH - DES MOINES WA, US
TIMOTHY DANIEL COLE - SEATTLE WA, US

Assignee:

Amazon Technologies, Inc. - Reno NV

International Classification:

G06F 9/46
G06F 3/06

Abstract:

A first transaction manager of a partitioned storage group stores a first conditional commit record for a first write of a multi-partition transaction based on a first conflict detection operation. A second transaction manager stores a second conditional commit record for a second write of the transaction based on a second conflict detection operation. A client-side component of the storage group determines that both writes have been conditionally committed, and stores an unconditional commit record in a commit decision repository. A write applier examines the first conditional commit record and the unconditional commit record before propagating the first write to the first partition.

US Patent:

20160070740, Mar 10, 2016

Filed:

Sep 10, 2014

Appl. No.:

14/482661

Inventors:

- Reno NV, US
TIMOTHY ANDREW RATH - DES MOINES WA, US
TIMOTHY DANIEL COLE - SEATTLE WA, US
KIRAN-KUMAR MUNISWAMY-REDDY - SEATTLE WA, US

Assignee:

AMAZON TECHNOLOGIES, INC. - Reno NV

International Classification:

G06F 17/30

Abstract:

At a client-side component of a storage group, a read descriptor generated in response to a read request directed to a first data store is received. The read descriptor includes a state transition indicator corresponding to a write that has been applied at the first data store. A write descriptor indicative of a write that depends on a result of the read request is generated at the client-side component. The read descriptor and the write descriptor are included in a commit request for a candidate transaction at the client-side component, and transmitted to a transaction manager.

US Patent:

20160070771, Mar 10, 2016

Filed:

Sep 10, 2014

Appl. No.:

14/482668

Inventors:

- Reno NV, US
KIRAN-KUMAR MUNISWAMY-REDDY - SEATTLE WA, US
TIMOTHY DANIEL COLE - SEATTLE WA, US
TIMOTHY ANDREW RATH - DES MOINES WA, US

Assignee:

AMAZON TECHNOLOGIES, INC. - Reno NV

International Classification:

G06F 17/30
H04L 29/08

Abstract:

In response to a read request directed to a first data store of a storage group, a state transition indicator is identified, corresponding to a modification that has been applied at the data store before a response to the read is prepared. A read descriptor that includes the state transition indicator and read repeatability verification metadata is prepared. The metadata can be used to check whether the read request is a repeatable read. The read descriptor is transmitted to a client-side component of the storage group.