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Interview Question : Avoid Database Failures ?

Ranch Hand
Posts: 162
Android Java
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I was asked question in Interview as follows

How would you avoid/prevent when DB(say ORACLE) is down?

I don't know how to answer this question and what precisely she wanted to listen to an Answer.

I just said using multiple nodes/ distributed database will ensure availability. He seems not so happy with the answer. I cannot think beyond Replication of DB and Redundancy as Solution.

author & internet detective
Posts: 40035
Eclipse IDE VI Editor Java
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Maybe she was looking for retry logic? Or a filter that tells users that the app is unavailable? Or monitoring?

I think the answer to this could be many things.
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