STORAGE SYSTEM, STORAGE CONTROL DEVICE, AND STORAGE MEDIUM STORING CONTROL PROGRAM

When a master name node has created a file, the master name node performs meta-information synchronization with only a slave name node, and does not perform the meta-information synchronization with a dummy name node. The master name node performs the meta-information synchronization with the dummy...

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Bibliographic Details
Main Authors OSADA NOBORU, TAKETA SUIJIN, ONDA YASUHIRO, SASAKAWA NORIKATSU, YASUFUKU YOICHI
Format Patent
LanguageEnglish
Published 12.02.2015
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:When a master name node has created a file, the master name node performs meta-information synchronization with only a slave name node, and does not perform the meta-information synchronization with a dummy name node. The master name node performs the meta-information synchronization with the dummy name node asynchronously with file creation. Furthermore, the slave name node stores the same meta-information as that stored in the master name node, and the file is stored in a data node placed in the same node as the slave name node and a data node placed in the same node as the master name node.
Bibliography:Application Number: US201414319461