公开(公告)号：US09760617B2

公开(公告)日：2017-09-12

申请号：US14290421

申请日：2014-05-29

申请人： Heping Shang ,  Guo Gang Ye ,  Zheng-wei Wang

发明人： Heping Shang ,  Guo Gang Ye ,  Zheng-wei Wang

IPC分类号： G06F17/30

CPC分类号： G06F17/30578

摘要： System, method, computer program product embodiments and combinations and sub-combinations thereof for data replication in a database system environment are described. In an aspect, the data replication includes grouping, in-memory, a plurality of transactions to be replicated as a single transaction from a source database system to a target database system. A plurality of net row changes is compiled for the plurality of transactions, and data inconsistency detection and resolution within a command application order are performed. The plurality of net row changes are organized in segments and the segments can be applied simultaneously in bulk to the target database system.

公开(公告)号：US20150347551A1

公开(公告)日：2015-12-03

申请号：US14290421

申请日：2014-05-29

申请人： Heping SHANG ,  Guo Gang YE ,  Zheng-wei WANG

发明人： Heping SHANG ,  Guo Gang YE ,  Zheng-wei WANG

IPC分类号： G06F17/30

CPC分类号： G06F17/30578

摘要： System, method, computer program product embodiments and combinations and sub-combinations thereof for data replication in a database system environment are described. In an aspect, the data replication includes grouping, in-memory, a plurality of transactions to be replicated as a single transaction from a source database system to a target database system. A plurality of net row changes is compiled for the plurality of transactions, and data inconsistency detection and resolution within a command application order are performed. The plurality of net row changes are organized in segments and the segments can be applied simultaneously in bulk to the target database system.

摘要翻译： 描述了用于数据库系统环境中的数据复制的系统，方法，计算机程序产品实施例及其组合和子组合。 在一方面，数据复制包括将要从源数据库系统复制为单个事务的多个事务分组到目标数据库系统。 针对多个事务编辑多个净行更改，并且执行命令应用顺序内的数据不一致性检测和解析。 多个网行更改以段为单位组织，并且段可以批量同时应用于目标数据库系统。

公开(公告)号：US09424145B2

公开(公告)日：2016-08-23

申请号：US14315138

申请日：2014-06-25

申请人： Heping Shang ,  Ming-Chen Lo ,  Fei Zhou ,  Tom Campbell ,  Frank de Lange ,  Guo Gang Ye ,  Xia-ge Dai

发明人： Heping Shang ,  Ming-Chen Lo ,  Fei Zhou ,  Tom Campbell ,  Frank de Lange ,  Guo Gang Ye ,  Xia-ge Dai

IPC分类号： G06F11/00 ,  G06F11/16 ,  G06F11/14 ,  G06F11/20

CPC分类号： G06F17/30351 ,  G06F11/1448 ,  G06F11/1474 ,  G06F11/1658 ,  G06F11/2094 ,  G06F17/30368 ,  G06F17/30371 ,  G06F17/30595 ,  G06F2201/80 ,  G06F2201/805 ,  G06F2201/82

摘要： Disclosed in some examples is a method, the method including detecting that an RDMS is recovering from a failure; sending a request for a last committed transaction on a replication component to the replication component; receiving, from the replication component, the last committed transaction which identifies a transaction that was the last committed transaction at a replication component at a time of RDMS failure; determining that a transaction log on the RDMS includes a transaction that had not yet been replicated at the time of RDMS failure which was committed on the transaction log subsequent to the last committed transaction received from the replication component; and based on that determination rolling back the transaction that had not yet been replicated at the time of RDMS failure.

摘要翻译： 在一些示例中公开了一种方法，该方法包括检测RDMS正在从故障中恢复; 向复制组件发送对复制组件上的最后提交的事务的请求; 从复制组件接收在RDMS故障时识别在复制组件处最后提交的事务的事务的最后提交的事务; 确定RDMS上的事务日志包括在从复制组件接收的最后一个提交的事务之后的事务日志上提交的RDMS故障时尚未复制的事务; 并且基于该确定将在RDMS失败时尚未被复制的事务回滚。

公开(公告)号：US20150378840A1

公开(公告)日：2015-12-31

申请号：US14315138

申请日：2014-06-25

申请人： Heping Shang ,  Ming-Chen Lo ,  Fei Zhou ,  Tom Campbell ,  Frank de Lange ,  Guo Gang Ye ,  Xia-ge Dai

发明人： Heping Shang ,  Ming-Chen Lo ,  Fei Zhou ,  Tom Campbell ,  Frank de Lange ,  Guo Gang Ye ,  Xia-ge Dai

IPC分类号： G06F11/14

CPC分类号： G06F17/30351 ,  G06F11/1448 ,  G06F11/1474 ,  G06F11/1658 ,  G06F11/2094 ,  G06F17/30368 ,  G06F17/30371 ,  G06F17/30595 ,  G06F2201/80 ,  G06F2201/805 ,  G06F2201/82

摘要： Disclosed in some examples is a method, the method including detecting that an RDMS is recovering from a failure; sending a request for a last committed transaction on a replication component to the replication component; receiving, from the replication component, the last committed transaction which identifies a transaction that was the last committed transaction at a replication component at a time of RDMS failure; determining that a transaction log on the RDMS includes a transaction that had not yet been replicated at the time of RDMS failure which was committed on the transaction log subsequent to the last committed transaction received from the replication component; and based on that determination rolling back the transaction that had not yet been replicated at the time of RDMS failure.

摘要翻译： 在一些示例中公开了一种方法，该方法包括检测RDMS正在从故障中恢复; 向复制组件发送对复制组件上的最后提交的事务的请求; 从复制组件接收在RDMS故障时识别在复制组件处最后提交的事务的事务的最后提交的事务; 确定RDMS上的事务日志包括在从复制组件接收的最后一个提交的事务之后的事务日志上提交的RDMS故障时尚未复制的事务; 并且基于该确定将在RDMS失败时尚未被复制的事务回滚。