CONSISTENCY CHECKING FOR DISTRIBUTED ANALYTICAL DATABASE SYSTEMS

    公开(公告)号:EP4446906A1

    公开(公告)日:2024-10-16

    申请号:EP24196571.4

    申请日:2022-01-27

    摘要: Embodiments described herein are directed to detecting data inconsistencies within a distributed database and identifying the cause thereof. For example, lineage events are emitted from different components of the distributed system that operate on various data files. A consistency checking engine analyzes these events and detects inconsistencies with respect to the data files. The embodiments described herein checks the integrity of the database and assists in understanding the root cause in case of a corruption. Moreover, it provides the timeline for the corruption and whether it is repairable or not. These properties enable determining the right time to restore the customer's database or the right set of actions to repair the corruption. In case of repairable corruption, the correct compensating repair actions may be applied.

    DATA SHARDING SYSTEM, DATA SHARDING METHOD, AND PROGRAM STORED IN RECORDING MEDIUM

    公开(公告)号:EP4258129A1

    公开(公告)日:2023-10-11

    申请号:EP21901016.2

    申请日:2021-12-02

    申请人: Kim, Geun Seok

    发明人: Kim, Geun Seok

    摘要: A data sharding system according to an embodiment of the present invention comprises: a server that receives and processes a request from a client terminal, and detects country information and region information related to the request; a database unit that is connected to the server via a network, receives a query for the request from the server, and transmits a response to the query to the server, wherein the query may include a shard key being determined on the basis of the country information and region information related to the request, and the database unit may include a plurality of data nodes in which the query is distributed and processed on the basis of the shard key.