As soon as the Hadoop framework runs across an errant computer, it terminates the job assigned to that machine and replaces it with a new one. Decide on one of the following: Is this statement true or false?

As soon as the Hadoop framework runs across an errant computer, it terminates the job assigned to that machine and replaces it with a new one. Decide on one of the following: Is this statement true or false?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Consider the following scenario: A school wants to automate their attendance taking. Attendance will be taken via a web interface. Each teacher can log in to the system and see a list of classes they are teaching. The teacher can choose one of those classes and be presented with a list of students who are enrolled in that class. The teacher can then set the attendance status of the students (present/absent) and submit the form, which should update the attendance record of the class for that time. Students can log in and check their attendance record on a per class basis. Only the assigned-teacher or the principal can give attendance for a class. In case the assignedteacher is absent, the principal must first assign another teacher for the class for that particular day. The temporary-assigned-teacher can then take attendance for the class, only for that day. The system must record this event for cases of attendance record dispute. A teacher may be the assigned teacher of more than one…