CLUSTER DATA MANAGEMENT SYSTEM AND METHOD FOR DATA RESTORATION USING SHARED REDO LOG IN CLUSTER DATA MANAGEMENT SYSTEM
First Claim
1. A method for data restoration using a shared redo log in a cluster data management system, the method comprising:
- collecting service information of a partition served by a failed partition server;
dividing redo log files written by the partition server by columns of a table including the partition;
restoring data of the partition on the basis of the collected service information and log records of the divided redo log files; and
selecting a new partition server that will serve the data-restored partition, and allocating the partition to the selected partition server.
1 Assignment
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Accused Products
Abstract
Provided are a cluster data management system and a method for data restoration using a shared redo log in the cluster data management system. The data restoration method includes collecting service information of a partition served by a failed partition server, dividing redo log files written by the partition server by columns of a table including the partition, restoring data of the partition on the basis of the collected service information and log records of the divided redo log files, and selecting a new partition server that will serve the data-restored partition, and allocating the partition to the selected partition server.
165 Citations
20 Claims
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1. A method for data restoration using a shared redo log in a cluster data management system, the method comprising:
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collecting service information of a partition served by a failed partition server; dividing redo log files written by the partition server by columns of a table including the partition; restoring data of the partition on the basis of the collected service information and log records of the divided redo log files; and selecting a new partition server that will serve the data-restored partition, and allocating the partition to the selected partition server. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A cluster data management system that restores data using a shared redo log, the cluster data management system comprising:
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a partition server managing a service for at least one or more partitions and writing redo log files according to the service for the partition; and a master server collecting service information of the partitions in the event of a partition server failure, dividing the redo log files by columns of a table including the partition, and selecting the partition server that will restore data of the partition on the basis of the collected service information of the partition and the log information of the redo log files. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification