Question

Cassandra's Gossip Protocol can take care of the heartbeat lost due to _______ in a widely distributed system.

Options:
1)Node Failure
2)Network Issue
3)Both node failure and network issue

Answer 1

Cassandra's Gossip Protocol can take care of the heartbeat lost due to _node failure_in a widely distributed system.

Within a distributed structure, failure detection is done by detecting a node’s failure.

When one node is down, it cannot respond to another node, it can be safely assumed that one node is down hence the heartbeat is not properly transmitted.

Answer 2

Cassandra's Gossip Protocol can take care of the heartbeat lost due to Node Failure in a widely distributed system.

Option (1)

Explanation:

• Gossip protocols maintain the relaxed consistency requirements of a very large faction of nodes. Each node sends out few data to a set of other nodes. Data spread through the system node by node.
• Finally data spread to 'every node in the system'. It's a method for nodes to create a global map with limited local interactions.
• 'Cassandra', uses an 'anti-entropy' variant of the 'gossip protocol' to fix unread data using 'Merkle Trees'. 'Riak' uses a 'gossip protocol' to exchange and 'connect ring state' and 'bucket properties' around the cluster.  

To know more

Which of the following is/are distributed system

(a) Internet

(b) Workgroups

(c) Both a and b

(d) None of these​

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