6 1 21113 cs480 principles of data management spring

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2559 3071 3583 4095 … 2 Colorado State University, Sangmi Pallickara •  Vastly simplifies design •  Easy to use global knowledge to reason about –  Chunk placements –  ReplicaIon decisions L22.5 2/8/13 Colorado State University, Sangmi Pallickara L22.6 1 2/11/13 CS480 Principles of Data Management Spring 2013 ALL system metadata is managed by the Master and stored in Main Memory ①  File and chunk namespaces ②  Mapping from files to chunks CS480 Principles of Data Management use Data = array( 0 => ‘use’, 1 => ‘0d’, 2 => ‘0ful’, 3 => ‘0fully’, 4 => ‘0fullness’, 5 => ‘0less’, 6 => ‘0lessly’, 7 => ‘0lessness’, ); used useful Logs mutations into a permanent log usefully usefulness ③  LocaIon of chunks useless uselessly uselessness L22.7 Colorado State University, Sangmi Pallickara 2/8/13 CS480 Principles of Data Management Spring 2013 Why keep the entire metadata in memory? CS480 Principles of Data Management •  MAXIMUM SIZE of the file system = Number of entries x Chunk size = (240 /26 ) x 26...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern