Hot data management method based on hit counter
AssigneeElectronics and Telecommunications Research Institute
InventorsSang Min Lee, Hong Yeon Kim, Young Kyun Kim, Han Namgoong
Life of this patent
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Abstract
Provided is a hot data management method based on hit counter, which prevents loads from being concentrated on a specific data server due to hot data by efficiently managing the hot data in the asymmetric storage system. Each of data servers of an asymmetric storage system checks hit counter for data stored in the corresponding data server to maintain hit counter information on the data in a latest state. The data server transmits the hit counter information to a metadata server at predetermined intervals. The data server makes or deletes a copy of the data according to the determination of the metadata server whether the data is hot data.
Claims20
A hot data management method based on hit counter, comprising:
- checking, by data servers of an asymmetric storage system, hit counter for data stored in the data servers to maintain hit counter information on the data in a latest state;
- transmitting, by the data servers, the hit counter information to a metadata server at predetermined intervals;
- and
- performing, by the data server, making or deletion of a copy of data according to a determination of the metadata server.
A hot data management method based on hit counter, comprising:
- configuring a hot data management table comprising a hit counter field for each data;
- collecting hit counter information on data, which is stored in data servers, from at least one of the data servers;
- updating the hot data management table on the basis of the hit counter information;
- checking the hot data management table at predetermined intervals to determine whether a data file is hot data;
- making a copy of the data file, which is determined as the hot data, in a new data server;
- and
- deleting a copy of the data file which is no longer the hot data according to a result of the determination.
A hot data management method, comprising:
- maintaining, by a plurality of data servers, data hit counter for data stored and managed by the data servers for a certain duration;
- transmitting, by the data servers, the data hit counter of the stored data to a management server at certain intervals;
- collecting and storing, by the management server, the transmitted data hit counter;
- and
- recognizing, by the management server, data where hit counter for each of the data servers is more than a predetermined threshold value within each interval, as a corresponding hot data, and additionally copying data of a hot file in at least one of the data servers, at certain intervals.
Dependencies are inferred from the claim text.