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).