Database Reference
In-Depth Information
◦ Each data center should be self-sufficient to satisfy the requests
◦ Failover or crash situations
If we have
2 replicas of datum in a data center
, then we have four copies of data and each
data center has a tolerance for one node failure for the consistency
ONE
. If we get into the
node of
3 replicas of datum in a data center
, then we have six copies of data and each
data center has a tolerance for multiple node failures for the consistency of
ONE
. This
strategy also permits asymmetrical replication.
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