MongoDB Replication (Day 15)

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  Pankaj Kumar Choudhary11y agoPosted Aug 31, 2015, 12:40 AM

  Thanks Hashim Shafiq Sir............
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  Pankaj Kumar Choudhary11y agoPosted Aug 31, 2015, 12:39 AM

  Thanks Sibeesh Venu Sir.......
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  Hashim Shafiq11y agoPosted Aug 30, 2015, 9:49 PM

  nice
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  Sibeesh Venu11y agoPosted Aug 30, 2015, 1:15 AM

  Nice Share
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  Pankaj Kumar Choudhary11y agoPosted Aug 29, 2015, 6:01 AM

  Thanks Santhakumar Munuswamy Sir............
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  Pankaj Kumar Choudhary11y agoPosted Aug 29, 2015, 6:00 AM

  Thanks Mohammed Ibrahim Sir........
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  Pankaj Kumar Choudhary11y agoPosted Aug 29, 2015, 6:00 AM

  Thanks Gopi Chand Sir.......
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  Pankaj Kumar Choudhary11y agoPosted Aug 29, 2015, 6:00 AM

  Thanks Karthikeyan K Sir..........
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  Pankaj Kumar Choudhary11y agoPosted Aug 29, 2015, 5:59 AM

  Thanks Gowtham K Sir.........
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  Santhakumar Munuswamy11y agoPosted Aug 29, 2015, 4:29 AM

  Great article. Thanks for very good series...
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  Mohammed Ibrahim11y agoPosted Aug 29, 2015, 1:52 AM

  Nice work
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  Gopi Chand11y agoPosted Aug 28, 2015, 11:44 PM

  Excellent Pankaj :)
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  Gowtham K11y agoPosted Aug 28, 2015, 8:54 PM

  Good one, Thanks for sharing
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    Karthikeyan K11y agoPosted Aug 28, 2015, 9:23 PM

    Good one Pankaj nice explain,Awesome series Thanks for share
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  Sam Hobbs11y agoPosted Aug 28, 2015, 5:42 PM

  What is the difference between distributed databases and replication of databases? IBM was doing distributed databases before they invented relational databases. IBM's database systems (such as DB2) are definitely designed with distributed data as a possibility. Is the purpose of the replication of databases to make a backup of the data? I assume not. Is it to support data in multiple locations? That is what distributed databases are. Please help us understand what the difference is between distributed databases and replication of databases.
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    Pankaj Kumar Choudhary11y agoPosted Aug 28, 2015, 8:01 PM

    Yes! Sir you are right that distributed database and replication of database are two different terms. In distributed system storage devices are not stored in a single machine, it may be stored in multiple machine and these machine may be in same physical location or may be in different location but interconnected to each other. The data on several computers can be simultaneously accessed and modified using a network.But Replication is a process or method to synchronize the same data across multiple servers. Replica sets provide redundancy and high availability with multiple copies of data on different distributed database servers. The term replication refers to the operation of copying and maintaining database objects in multiple databases belonging to a distributed system. Replication removes dependencies from a single server by providing same copy of data on several machine .so replication protects a database from the loss of a single server. The terms distributed database system and database replication are related but distinct .In pure distributed database system , system contain a single copy of all data. But using replication we can maintain same copy of data on several machine such that application may normally access local database rather than a remote server to minimize the network traffic and achieve maximum performance. In a single line we can say that distributed system is used to store the data on several machine and replication of database is used to make the same copy of data on each machine.