1connect_info:
2  DB_W:
3    attrs:
4      AutoCommit: 0
5      PrintError: 0
6      RaiseError: 1
7      Warn: 0
8    dsn: dbi:mysql:dbname=user;host=db_w
9    password: ~
10    user: hoge
11  DB_R1:
12    attrs:
13      AutoCommit: 0
14      PrintError: 0
15      RaiseError: 1
16      Warn: 0
17    dsn: dbi:mysql:dbname=user;host=db_r1
18    password: ~
19    user: hoge
20  DB_R2:
21    attrs:
22      AutoCommit: 0
23      PrintError: 0
24      RaiseError: 1
25      Warn: 0
26    dsn: dbi:mysql:dbname=user;host=db_r2
27    password: ~
28    user: hoge
29clusters:
30  DB_R:
31    - DB_R1
32    - DB_R2
33