下文给大家带来SCAN_IP是否负载均衡问题的解答，希望能够给大家在实际运用中带来一定的帮助，负载均衡涉及的东西比较多，理论也不多，网上有很多书籍，今天我们就用创新互联在行业内累计的经验来做一个解答。
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最近遇到一个测试项目，对SCAN_IP是否负载均衡有一个疑问？理论上说是可以负载均衡，自己做了一个测试验证一下。
事实证明，并不是轮训机制的负载均衡。
一个小小的脚本如下：
#!/bin/bash
for i in {1..100}
do
echo $i
sqlplus -S system/oracle@orcl <
select instance_name from v\$instance;
select count(*) from t1;
EOF
sleep 1
done
exit 0
1
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
2
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
3
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
4
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
5
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
6
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
7
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
8
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
9
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
10
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
11
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
12
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
13
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
14
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
15
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
16
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
17
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
18
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
19
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
20
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
21
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
22
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
23
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
24
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
25
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
26
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
27
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
28
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
29
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
30
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
31
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
32
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
33
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
34
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
35
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
36
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
37
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
38
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
39
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
40
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
41
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
42
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
43
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
44
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
45
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
46
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
47
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
48
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
49
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
50
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
51
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
52
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
53
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
54
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
55
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
56
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
57
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
58
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
59
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
60
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
61
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
62
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
63
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
64
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
65
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
66
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
67
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
68
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
69
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
70
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
71
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
72
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
73
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
74
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
75
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
76
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
77
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
78
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
79
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
80
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
81
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
82
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
83
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
84
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
85
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
86
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
87
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
88
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
89
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
90
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
91
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
92
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
93
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
94
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
95
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
96
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
97
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
98
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
99
INSTANCE_NAME
----------------
orcl2
COUNT(*)
----------
2910624
100
INSTANCE_NAME
----------------
orcl1
COUNT(*)
----------
2910624
看了以上关于SCAN_IP是否负载均衡问题的解答，如果大家还有什么地方需要了解的可以在创新互联行业资讯里查找自己感兴趣的或者找我们的专业技术工程师解答的，创新互联技术工程师在行业内拥有十几年的经验了。
