Hangzhou Alicloud Feitian Information Technology Co., Ltd.

Youyou Deng

Xueqiang Wu

Yanfeng Lin

Biao Lu

Embodiments of the present application provide a data processing method, a distributed database system, an electronic device and a computer storage medium, wherein a data processing method is applied to a shard node of a distributed database system. The method comprises: receiving a physical DDL instruction converted from a logic DDL instruction for change of data in the distributed database system; executing the physical DDL instruction and generating a shard node mode snapshot for the shard node after the physical DDL instruction has been successfully executed; and if it is determined that the shard node mode snapshot is inconsistent with a global logic mode snapshot of the distributed database system, adjusting log data of the shard node aggregated into a global log to be consistent with the global logic mode snapshot.

Data processing method, distributed database system, electronic device and storage medium

A data processing method and system for a distributed database, and a device and a storage medium. The method comprises: sorting transactions in a transQueue by using a global timestamp TSO, creating a local transaction list by means of an XA Event and a waitTrans in the transQueue, and generating first-level sorting queues according to the local transaction list (); for the first-level sorting queue of each DN, performing multi-path merging and sorting, so as to generate a global sorting queue (); and for the global sorting queue, merging local transactions that have the same global timestamp TSO, and generating a global binary log Binlog ().

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Hangzhou, China

Youyou Deng