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Distributed File and Database System, to make it more available to the users connected and to allow users to upload/download their files and also replicate it in case if one of the nodes was down to ensure availability
megadistribute's Introduction
the project has two modules
Distributed Database
Distributed File System
we use the structure master slave which we have a main master and other slaves
in the master the users create users and there is a backup database to insert all the users that should be inserted in the slaves
we have implemented backupdatabase program to check periodically all the slaves and insert the user in it
we have to ensure that all databases are consistent as the user try to enter can log in from any slave
if a user tries to log in to database then he selects from slaves and if all slaves are dead then we select from master
a lot of other things
we make a master tracker and data node keeper
master tracker handle the connections between the client and data nodes to upload and download
master tracker has database so can store where client files in which data nodes
we make replications to three data nodes for each file and we make sure they are alive
all and more than in the document requirement we have handle it
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