What are the limitations of the two-phase commit protocol?
The two-phase commit protocol ensures all or nothing transactions, but it has limitations like blocking, single point of failure, and performance issues.
Can you explain the blocking issue in more detail?
Sure! In a blocking scenario, if the coordinator fails after the first phase, the participants cannot proceed, leading to potential deadlocks.
What alternatives exist to avoid these limitations?
Alternatives include the three-phase commit protocol, which reduces blocking, and eventual consistency models that allow for more flexibility.
How does the three-phase commit improve upon the two-phase commit?
The three-phase commit adds an additional phase to reduce the chances of blocking and provides a way to recover from failures more gracefully.
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