Synchronization Mechanism for Serialized Data Log Replay in Database Systems

    公开(公告)号:US20180150540A1

    公开(公告)日:2018-05-31

    申请号:US15409234

    申请日:2017-01-18

    Applicant: SAP SE

    Abstract: A computer implemented method for updating a secondary database includes receiving transaction log information from a primary database system at a secondary database system. The transaction log information comprises a first marker identifying a beginning of an operation comprising a plurality of sub-operations and a second marker identifying an end of the operation. The transaction log information is sequentially parsed, a first marker is identified, and a lock state is created after replaying the first marker to ensure proper serialization of the plurality of sub-operations. The lock state is terminated after replaying the second marker. Related apparatus, systems, techniques and articles are also described.

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