MULTI-MASTER DATA REPLICATION IN A DISTRIBUTED MULTI-TENANT SYSTEM

    公开(公告)号:US20220121642A1

    公开(公告)日:2022-04-21

    申请号:US17644417

    申请日:2021-12-15

    Abstract: A multi-master replication system is disclosed. The multi-master replication system allows a large set of peer instances to collaboratively replicate data to each other. According to an example, a change detection thread running on a first server associated with a first instance of multiple instances of a replicated database monitors for changes to any of multiple records within one or more shared tables of the replicated database. Responsive to detection of a change to a record, an item is stored by the change detection thread onto a queue containing information regarding the change. Groups of changes are packaged into multiple chunks, in which each chunk (i) corresponds to a discrete unit of progress for both change detection and transport; (ii) is associated with multiple changed records; (iii) contains metadata about the multiple changed records; and (iv) does not contain data from the one or more shared tables.

    RELATIONAL DATABASE INSTRUCTION VALIDATION
    4.
    发明申请

    公开(公告)号:US20180210909A1

    公开(公告)日:2018-07-26

    申请号:US15415186

    申请日:2017-01-25

    CPC classification number: G06F16/2456 G06F16/24522 G06F16/284

    Abstract: In an example, a database system may be configured to validate relational database instructions using a plurality of validators. In some examples, validation may be pre-production for relational database instructions based on simulated user inputs and/or file, such as plan files (e.g., PL/SQL (procedural language/structured query language) files). In some examples, validation may be in production for relational database instructions based on system views of a database engine.

    MECHANISM FOR FACILITATING SPIN MODE-BASED DYNAMIC UPDATING OF APPLICATION SERVERS IN AN ON-DEMAND SERVICES ENVIRONMENT
    5.
    发明申请
    MECHANISM FOR FACILITATING SPIN MODE-BASED DYNAMIC UPDATING OF APPLICATION SERVERS IN AN ON-DEMAND SERVICES ENVIRONMENT 审中-公开
    促进基于旋转模式的动态更新应用程序服务器在一个需求服务环境中的机制

    公开(公告)号:US20160173583A1

    公开(公告)日:2016-06-16

    申请号:US14997354

    申请日:2016-01-15

    Abstract: In accordance with embodiments, there are provided mechanisms and methods for facilitating spin mode-based dynamic updating of application servers in an on-demand services environment. In one embodiment and by way of example, a method includes upgrading a first set of application servers of a plurality of application servers at one or more computing devices, holding a first set of requests received at the first set of application servers from being processed while the first set of application servers is being upgraded, and upgrading a second set of application servers of the plurality of application servers upon completion of the first set of application servers. The method may further include holding a second set of requests received at the second set of application servers from being processed while the second set of application servers is being upgraded, and resuming processing of the first set of requests at the upgraded first set of application servers.

    Abstract translation: 根据实施例,提供了用于在按需服务环境中促进应用服务器的基于旋转模式的动态更新的机制和方法。 在一个实施例中,作为示例,一种方法包括在一个或多个计算设备处升级多个应用服务器的第一组应用服务器,保持在第一组应用服务器处接收的第一组请求被处理, 正在升级第一组应用服务器,并且在第一组应用服务器完成时升级多个应用服务器的第二组应用服务器。 该方法还可以包括在第二组应用服务器被升级时保持在第二组应用服务器处接收到的第二组请求被处理,并且恢复在升级的第一组应用服务器处的第一组请求的处理 。

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