1)JDBC連接的配置方式
,既然數(shù)據(jù)庫(kù)本身已經(jīng)支持了RAC,那么只要在JDBC連接字符串中將RAC的配置加上去即可, 根據(jù)資料和目前的業(yè)務(wù)需求,我們的針對(duì)HOST=10.87.25.37這臺(tái)主機(jī)的數(shù)據(jù)庫(kù)實(shí)例的JDBC連接字符串應(yīng)該這樣配置
??
? ?URL="jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
? ?(HOST=10.87.25.37)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)
? ?(HOST=10.87.25.38)(PORT=1521))
? ?(HOST=10.87.25.39)(PORT=1521))
(FAILOVER=on)(LOAD_BALANCE=off))
? ?(CONNECT_DATA= (SERVICE_NAME=bidwb)))"
??
? ?這個(gè)連接配置表示只支持failover,不支持loadbalance.根據(jù)藍(lán)色字符串可以表示.即按照順序,使用該JDBC字符串獲取的連接,將根據(jù)配置的主機(jī)的先后順序,依次進(jìn)行failover
? ?即如果在10.87.25.37數(shù)據(jù)庫(kù)實(shí)例不能被訪問(wèn),那么就轉(zhuǎn)到10.87.25.38執(zhí)行,如果10.87.25.38也數(shù)據(jù)庫(kù)實(shí)例不能被訪問(wèn),那么就轉(zhuǎn)到10.87.25.39執(zhí)行
同理
對(duì)于HOST=10.87.25.38這臺(tái)主機(jī)的數(shù)據(jù)庫(kù)實(shí)例的JDBC連接字符串應(yīng)該這樣配置
URL="jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
? ?(HOST=10.87.25.38)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)
? ?(HOST=10.87.25.39)(PORT=1521))
? ?(HOST=10.87.25.37)(PORT=1521))
(FAILOVER=on)(LOAD_BALANCE=off))
? ?(CONNECT_DATA= (SERVICE_NAME=bidwb)))"
對(duì)于HOST=10.87.25.39這臺(tái)主機(jī)的數(shù)據(jù)庫(kù)實(shí)例的JDBC連接字符串應(yīng)該這樣配置
URL="jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
? ?(HOST=10.87.25.39)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)
? ?(HOST=10.87.25.37)(PORT=1521))
? ?(HOST=10.87.25.38)(PORT=1521))
(FAILOVER=on)(LOAD_BALANCE=off))
? ?(CONNECT_DATA= (SERVICE_NAME=bidwb)))"
即只是各個(gè)Host的順序不同
2)本地服務(wù)名連接的配置方式
對(duì)于HOST=10.87.25.37這臺(tái)主機(jī)的數(shù)據(jù)庫(kù)實(shí)例的本地服務(wù)名應(yīng)該這樣配置


?37bidwb =


?(DESCRIPTION =?


? ? (ADDRESS_LIST=?


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.37)(PORT = 1521))


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.38)(PORT = 1521))


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.39)(PORT = 1521))


? ? ?(FAILOVER = on)


? ? ?(LOAD_BALANCE = off)


? ? ) ??


? ? (CONNECT_DATA= (SERVICE_NAME = bidwb))


?)


?
對(duì)于HOST=10.87.25.38這臺(tái)主機(jī)的數(shù)據(jù)庫(kù)實(shí)例的本地服務(wù)名應(yīng)該這樣配置


?37bidwb =


?(DESCRIPTION =?


? ? (ADDRESS_LIST=?


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.38)(PORT = 1521))


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.39)(PORT = 1521))


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.37)(PORT = 1521))


? ? ?(FAILOVER = on)


? ? ?(LOAD_BALANCE =off)


? ? ) ??


? ? (CONNECT_DATA= (SERVICE_NAME = bidwb))


?)


?
對(duì)于HOST=10.87.25.39這臺(tái)主機(jī)的數(shù)據(jù)庫(kù)實(shí)例的本地服務(wù)名應(yīng)該這樣配置


?37bidwb =


?(DESCRIPTION =?


? ? (ADDRESS_LIST=?


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.39)(PORT = 1521))


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.37)(PORT = 1521))


? ? ?(ADDRESS= (PROTOCOL = TCP)(HOST = 10.87.25.38)(PORT = 1521))


? ? ?(FAILOVER = on)


? ? (LOAD_BALANCE = off)


? ? ) ??


? ? (CONNECT_DATA= (SERVICE_NAME =bidwb))


?)

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