公开(公告)号：US12197441B1

公开(公告)日：2025-01-14

申请号：US17491103

申请日：2021-09-30

Applicant: Amazon Technologies, Inc.

Inventor： Kanishka Chaturvedi ,  Sudipto Das ,  Dhruv Goel ,  Tiratat Patana-anake

IPC: G06F16/2453

Abstract: A system to manage database queries including storage devices to implement a data store to store database data and computing devices to implement a query engine. The query engine is configured to receive, from a client, a database query and initiate performance of the query at the data store. The query engine is configured to compare a performance time of the query with a performance time threshold. Based on the performance time exceeding the performance time threshold: send a query identifier for the query and a token indicating that the query has not been completed; and receive, from the client, an additional query comprising the token and the query identifier. Based on a determination that the performance time does not exceed the performance time threshold, send a response to the query to the client, the response comprising data requested by the query.

公开(公告)号：US11941014B1

公开(公告)日：2024-03-26

申请号：US17349786

申请日：2021-06-16

Applicant: Amazon Technologies, Inc.

Inventor： Sudipto Das ,  Kanishka Chaturvedi ,  Timothy A Rath ,  Avinash Goutham Reddy Aluguvelly

IPC: G06F16/2458 ,  G06F11/14 ,  G06F16/22 ,  G06F16/27

CPC classification number: G06F16/2477 ,  G06F11/1469 ,  G06F16/2246 ,  G06F16/2282 ,  G06F16/27 ,  G06F2201/84

Abstract: Methods, systems, and computer-readable media for versioned metadata management for a time-series database are disclosed. A metadata service of a distributed time-series database stores, to one or more metadata storage resources, first metadata descriptive of a table. The first metadata is associated with a version number in a logical sequence for the table. The metadata service stores, in a log, data indicative of one or more metadata updates for the table. The metadata update(s) are associated with an additional version number higher than the version number in the logical sequence. Responsive to a read request, the metadata service determines a most recent version number that has been applied from the log to the metadata storage resource(s). Responsive to the read request and based (at least in part) on the most recent version number, the metadata service returns either the first metadata or second metadata comprising the update(s).

公开(公告)号：US11461347B1

公开(公告)日：2022-10-04

申请号：US17349790

申请日：2021-06-16

Applicant: Amazon Technologies, Inc.

Inventor： Sudipto Das ,  Rajesh Iyer ,  Lokendra Singh Panwar ,  Harish Tummalacherla ,  Lonnie J Princehouse

IPC: G06F16/2458 ,  G06F16/22 ,  G06F16/242 ,  G06F16/28 ,  G06F16/2453 ,  G06F16/25

Abstract: Methods, systems, and computer-readable media for adaptive querying of time-series data over tiered storage are disclosed. A distributed time-series database receives a query indicating spatial and temporal boundaries of requested time-series data in a table. The time-series database stores time-series data using a plurality of storage resources, wherein a first storage tier is accessible using a first access interface and a second storage tier is accessible using a second access interface. The time-series database determines, in the plurality of storage resources, one or more storage locations corresponding to the spatial and temporal boundaries of the query. Using the first access interface, the time-series database reads one or more elements of the requested time-series data from storage locations in the first storage tier. Using the second access interface, the time-series database reads one or more additional elements of the requested time-series data from storage locations in the second storage tier.