公开(公告)号：US20170316026A1

公开(公告)日：2017-11-02

申请号：US15144353

申请日：2016-05-02

Applicant: Google Inc.

Inventor： Sebastian Kanthak ,  Clifford Arthur Frey

IPC: G06F17/30

CPC classification number: G06F17/30138 ,  G06F17/30194 ,  G06F17/30575 ,  G06F17/30584

Abstract: Methods and systems for a distributed transaction in a distributed database system are described. One example includes identifying a request to insert a split point in a source group comprising one or more tablet replicas, each tablet including at least a portion of data from a table in the distributed database system, and the split point splitting data in the source group into a first range and a second range different than the first range; in response to the request: sending a list of filenames in the first range of the source group to a first target group comprising one or more tablet replicas; and creating, at the first target group, a virtual copy of files represented by the list of filenames in the first range, the virtual copy making data of the files available, each using a new name, without duplicating the data of the files.