Data management method and information processing apparatus
AssigneeFujitsu Limited
InventorsHiroki Moue, Yuichi Tsuchimoto, Miho Murata
Life of this patent
Estimating the term…
Abstract
A first node is assigned a first data group, and a second node is assigned a second data group. In addition, the second node manages a backup copy of the first data group. The second node receives, from the first node, a log indicating an instruction executed on a data record belonging to the first data group, and stores the received log in a memory of the second node. The second node writes logs for a plurality of instructions accumulated in the memory into a storage device of the second node different from the memory when a predetermined condition is satisfied.
Claims7
A non-transitory computer-readable storage medium storing a computer program, the computer program causing a computer to perform a process, which computer is used as a second node in a system including a first node responsible for a first data group and the second node responsible for a second data group and managing a backup copy of the first data group, the process comprising:
- receiving, from the first node, a log indicating an instruction executed on a data record belonging to the first data group, and storing the received log in a memory of the computer;
- and
- writing logs accumulated in the memory, each of which indicates one of the instruction in plurality, into a storage device of the computer different from the memory when a predetermined condition is satisfied.
A data management method performed by a system including a first node responsible for a first data group and a second node responsible for a second data group and managing a backup copy of the first data group, the data management method comprising:
- transmitting a log indicating an instruction executed on a data record belonging to the first data group from the first node to the second node;
- storing the transmitted log in a memory of the second node;
- and
- writing, by a processor of the second node, logs accumulated in the memory, each of which indicates one of the instruction in plurality, into a storage device of the second node different from the memory when a predetermined condition is satisfied.
An information processing apparatus used as a second node in a system including a first node responsible for a first data group and the second node responsible for a second data group and managing a backup copy of the first data group, the information processing apparatus comprising:
- a memory;
- a storage device different from the memory;
- a receiving unit configured to receive, from the first node, a log indicating an instruction executed on a data record belonging to the first data group;
- and
- a processor configured to store the received log in the memory, and write logs accumulated in the memory, each of which indicates one of the instruction in plurality, into the storage device when a predetermined condition is satisfied.
Dependencies are inferred from the claim text.