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there are so many ways to do this .
- nishant304 December 03, 2015Centralized mechanism
1.Master keeps a token and slaves nodes request for the token when they enter a critical section and wait for it.
2.If the master has token it reply back otherwise queue the request .
3.When the master receives the token back from the slave it send the token to the first enqued request.
There are other ways to do this as well like Ring mechanism ,where token is circulated in a ring,RA algorithm ,DHT based solution