Computer Science, asked by Yashwardhan9731, 1 year ago

Explain singhal's heuristic algorithm.

Answers

Answered by namanarora2001

https://m.youtube.com/watch?v=jFULOEHPqgo
singhal heuristic algorithm - YouTube

Answered by stalwartajk

Answer:

Singhal's Heuristic Algorithm is a fault-tolerant algorithm used in distributed computing systems. It uses vector clocks to track the order of events and allows nodes to reach a consistent state.

Explanation:

Singhal's Heuristic Algorithm is used in to ensure the consistency of data. The algorithm is named after its inventor, Alok Singhal.

The goal of the algorithm is to allow distributed nodes to reach a consistent state in the presence of node failures and network delays. The algorithm assumes that the system operates in a partially synchronous environment, which means that the system behaves synchronously during normal operation, but may experience delays or failures.

The algorithm works as follows:

Each node maintains a vector clock that tracks the order of events in the system.
When a node receives a message, it updates its vector clock and processes the message if the message is the next expected message based on the vector clock.
If a node receives a message that is not the next expected message, it buffers the message until the missing message arrives.
If a node fails, the other nodes continue to operate and update their vector clocks.
When the failed node recovers, it sends a message to the other nodes with its updated vector clock. The other nodes then update their vector clocks and replay any buffered messages from the failed node.
If two nodes have conflicting updates, the algorithm resolves the conflict by choosing the update with the higher vector clock timestamp.