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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)
(a)
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)
(b)
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)
(c)
FIGURE 11.9
The performance of the adaptive management of the replication delay for
the cloud-hosted database replicas. (a) Fixed 3 running replicas. (b) Fixed 6 running replicas.
(c)
delay
tolerance
= 1000 ms and
intvl
mon
= 120 sec.
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