Recent questions tagged graph-based-protocol / GATE Overflow for GATE CSE

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Graph based protocol
Is there a chance for Deadlock in Graph based protocol?

Is there a chance for Deadlock in Graph based protocol?

Heena Jain

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Heena Jain asked Aug 5, 2017

1 votes

2 answers

2

Graph based protocol
I have been reading about the tree protocol as an approach in locking management in databases. I read that it is deadlock free but I am not sure how it works. Example: Assume that T1 has locked B, D, E in exclusive mode. According to the rules: T2 can lock ... it has to lock D but D is locked by T1 so it has to wait. Hence deadlock. What am I misunderstanding in the algorithm?

I have been reading about the tree protocol as an approach in locking management in databases. I read that it is deadlock free but I am not sure how it works.Example:Assu...

shashank023

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shashank023 asked Jul 25, 2017

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0 answers

3

graph based protocol
In Graph based Protocol :- Why acquireing second lock on a data item needs to lock their parent data in tree . please explain

In Graph based Protocol :-Why acquireing second lock on a data item needs to lock their parent data in tree .please explain

indrajeet

588 views

indrajeet asked Jun 16, 2016

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