Practice - Heartbeating and Failure Detection
Practice Questions
Test your understanding with targeted questions
What is heartbeating in Hadoop?
💡 Hint: Think of it as a way to keep tabs on server health.
What happens if a NodeManager misses a heartbeat?
💡 Hint: Consider the implication for ongoing tasks.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does heartbeating refer to in the context of Hadoop?
💡 Hint: Think about how the system monitors its components.
True or False: If a NodeManager fails to send a heartbeat, the ResourceManager will not detect any issues.
💡 Hint: Consider the role of communication in failure detection.
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Challenge Problems
Push your limits with advanced challenges
Design a failure detection system in a NodeManager for a hypothetical Hadoop framework. Discuss how heartbeating can optimize this system.
💡 Hint: Consider how heartbeating can impact both speed and accuracy in identifying failures.
Evaluate the fault tolerance of a Hadoop implementation that relies solely on heartbeating without re-execution of tasks. How could this system fail?
💡 Hint: Think about scenarios where a task fails but the NodeManager still sends heartbeats.
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Reference links
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