Database Reference
In-Depth Information
1000
us-west-1
us-east-1
eu-west-1
100
10
1
0.1
0.01
1E-3
1E-4
0
600
1200
1800
2400
3000
Timeline per slave (second)
Fig. 7.4
The performance of the replication delay for fixed 3 replica servers with the framework
disabled
1000
us-west-1
us-east-1
eu-west-1
us-west-2
us-east-2
eu-west-2
100
10
1
0.1
0.01
1E-3
1E-4
0
600
1200
1800
2400
3000
Timeline per slave (second)
Fig. 7.5
The performance of the replication delay for fixed 6 replica servers with the framework
disabled
CPUs specifications, the virtualized database server in
us-east-1
is able to handle
the amount of operations that saturated the servers in
us-west-1
and
eu-west-1
.
Moreover, with an identical CPU for
us-west-1
and
eu-west-1
, the former seems
to surge at an earlier point than the latter. This is basically because of the difference
in the geographical location of the two virtualized database servers. As illustrated in
Fig.
7.3
, the MySQL Proxy location is closer to the virtualized database server in
us-
west-1
than the server in
eu-west-1
. Therefore, the forwarded database operations by
the MySQL Proxy take less time to reach the server in
us-west-1
than to the server
