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RAC中l(wèi)snrctl和srvctl的區(qū)別是什么,很多新手對(duì)此不是很清楚,為了幫助大家解決這個(gè)難題,下面小編將為大家詳細(xì)講解,有這方面需求的人可以來學(xué)習(xí)下,希望你能有所收獲。
案例:(環(huán)境:hp小機(jī),10G rac)今天早上一客戶發(fā)現(xiàn)連接不上數(shù)據(jù)庫(kù),反饋。
處理過程:
登錄服務(wù)器發(fā)現(xiàn)有一臺(tái)服務(wù)器集群監(jiān)聽處于關(guān)閉狀態(tài),lsnrctl status發(fā)現(xiàn)監(jiān)聽處于卡死狀態(tài),無法進(jìn)行正常的關(guān)閉,重啟
查看監(jiān)聽日志報(bào)錯(cuò)TNS-12545,另一臺(tái)服務(wù)器監(jiān)聽正常,所以不著急……穩(wěn)住,慢慢看。
$crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora.....XFF.cs application ONLINE ONLINE rac1
ora....db1.srv application ONLINE ONLINE rac2
ora.devdb.db application ONLINE ONLINE rac2
ora....b1.inst application ONLINE ONLINE rac1
ora....b2.inst application ONLINE ONLINE rac2
ora....SM1.asm application ONLINE ONLINE rac1
ora....C1.lsnr application OFFLINE OFFLINE
ora.rac1.gsd application ONLINE ONLINE rac1
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip application ONLINE ONLINE rac1
ora....SM2.asm application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE ONLINE rac2
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac2
既然從集群里面看到監(jiān)聽關(guān)了,那就找到監(jiān)聽進(jìn)程殺掉
$ ps -ef |grep tnslsnr
grid 3232 1 0 10:59 ? 00:00:00 /g01/11ggrid/app/11.2.0/grid/bin/tnslsnr LISTENER_SCAN1 -inherit
kill -15 3232
lsnrctl start啟動(dòng)監(jiān)聽,監(jiān)聽狀態(tài)恢復(fù)正常,但集群中監(jiān)聽狀態(tài)仍然是offline
原因:srvctl操作的監(jiān)聽是listener_rac1,而lsnrctl操作的默認(rèn)監(jiān)聽時(shí)CRS不會(huì)online,或者說lsnrctl操作的監(jiān)聽反饋不到CRS?
srvctl config listener -n rac1
解決辦法:
lsnrctl stop --關(guān)閉監(jiān)聽
srvctl start listener -n rac1 --開啟監(jiān)聽服務(wù)(rac1為主機(jī)名)
不過后來自己在11g庫(kù)上做測(cè)試,沒有發(fā)現(xiàn)這個(gè)問題。
此時(shí)恢復(fù)正常,附上listener.ora
LISTENER_RAC1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip)(PORT = 1521)(IP = FIRST))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.11)(PORT = 1521)(IP = FIRST))
)
)
SID_LIST_LISTENER_RAC1 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
)
)
建議:RAC重啟監(jiān)聽的話建議還是用srvctl
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