Invention Application
- Patent Title: DYNAMICALLY ADJUSTING THE NUMBER OF REPLICAS OF A FILE ACCORDING THE PROBABILITY THAT THE FILE WILL BE ACCESSED WITHIN A DISTRIBUTED FILE SYSTEM
- Patent Title (中): 根据文件在分布式文件系统中访问的概率动态调整文件的复制次数
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Application No.: US14723797Application Date: 2015-05-28
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Publication No.: US20150261627A1Publication Date: 2015-09-17
- Inventor: SUJATHA KASHYAP , LISA B. MAURICE , JOSEPH H. ROBICHAUX
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G06F17/30
Abstract:
In a distributed file system with a number of replicas of a file set to two or more replicas, a computer sets a timer to track a time since a last access to the file, wherein the replicas of the file are distributed across two or more nodes within the distributed file system. Responsive to an access to the file prior to the timer reaching a first timer window threshold, the computer resets the timer. Responsive to the timer matching a first timer window threshold, the computer automatically reduces a number of replicas of the file within the distributed file system, wherein the probability that the file will be accessed prior to the first timer window threshold is greater than the probability that the file will be accessed after the first timer window threshold.
Public/Granted literature
Information query
