左右RAC CRS 自己主动启动

时间:2022-03-31 10:20:54

左右CRS自己主动重新启动实验





一.检验ASM

[root@rac1 ~]# /etc/init.d/oracleasm status

Checking if ASM is loaded: yes

Checking if /dev/oracleasm is mounted: yes

[root@rac1 ~]# /etc/init.d/oracleasm listdisks

ASM01

ASM02

ASM03





二.RAC自己主动启动的时候后台CRS进程

[root@rac1 ~]# ls -l /etc/init.d/init.*

-r-xr-xr-x 1 root root  1951 Aug 20 11:57 /etc/init.d/init.crs

-r-xr-xr-x 1 root root  4722 Aug 20 11:57 /etc/init.d/init.crsd

-r-xr-xr-x 1 root root 35402 Aug 20 11:57 /etc/init.d/init.cssd

-r-xr-xr-x 1 root root  3198 Aug 20 11:57 /etc/init.d/init.evmd









三.我查看一下CRS状态

节点1

[oracle@rac1 ~]# crs_stat -t

Name           Type           Target    State     Host        

------------------------------------------------------------

ora....B1.inst application    ONLINE    ONLINE    rac1        

ora....B2.inst application    ONLINE    ONLINE    rac2        

ora.RACDB.db   application    ONLINE    ONLINE    rac1        

ora....SM1.asm application    ONLINE    ONLINE    rac1        

ora....C1.lsnr application    ONLINE    ONLINE    rac1        

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  



节点2

[oracle@rac2 ~]# crs_stat -t

Name           Type           Target    State     Host        

------------------------------------------------------------

ora....B1.inst application    ONLINE    ONLINE    rac1        

ora....B2.inst application    ONLINE    ONLINE    rac2        

ora.RACDB.db   application    ONLINE    ONLINE    rac1        

ora....SM1.asm application    ONLINE    ONLINE    rac1        

ora....C1.lsnr application    ONLINE    ONLINE    rac1        

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   





方法:也能够用crs_stat 查看所有进程信息

[root@rac1 bin]# ./crs_stat

NAME=ora.RACDB.RACDB1.inst

TYPE=application

TARGET=ONLINE

STATE=ONLINE on rac1





NAME=ora.RACDB.RACDB2.inst

TYPE=application

TARGET=ONLINE

STATE=ONLINE on rac2





NAME=ora.RACDB.db

TYPE=application

TARGET=ONLINE

STATE=ONLINE on rac1





NAME=ora.rac1.ASM1.asm

TYPE=application

TARGET=ONLINE

STATE=ONLINE on rac1









NAME=ora.rac2.gsd

TYPE=application

TARGET=ONLINE

STATE=OFFLINE on rac2





NAME=ora.rac2.ons

TYPE=application

TARGET=ONLINE

STATE=UNKNOWN on rac2

。。。





1.对于OFFLINE的进程能够手动启动

[root@rac1 bin]# ./crs_start ora.rac2.gsd

Attempting to start `ora.rac2.gsd` on member `rac2`

Start of `ora.rac2.gsd` on member `rac2` succeeded.

2.对于UNKNOWN的进程  能够先./crs_stop .... 后再 ./crs_start 



3.假设crs_stop不能结束,crs_start不能启动的进程,解决方案:

3.1 使用crs_stop -f 參数把crs中状态是UNKNOWN的服务关掉,然后再用crs_start -f(加一个-f的參数)启动全部的服务就能够。

分别在两个节点上运行。

3.2 转换到root用户下用/etc/init.d/init.crs stop先禁用crs,然后在用/etc/init.d/init.crs start去启用crs,启用crs后会自启动crs的一系列服务。注意:此种方法最好在两节点都运行。

(但我自己做实验仅仅在节点1上也能够)

[root@rac1 ~]# /etc/init.d/init.crs stop

Shutting down Oracle Cluster Ready Services (CRS):

Stopping resources.

Successfully stopped CRS resources 

Stopping CSSD.

Shutting down CSS daemon.

Shutdown request successfully issued.

Shutdown has begun. The daemons should exit soon.

[root@rac1 bin]# ./crs_stat -t

CRS-0184: Cannot communicate with the CRS daemon.

[root@rac1 bin]# ./crs_stat -t

Name           Type           Target    State     Host        

------------------------------------------------------------

ora....B1.inst application    ONLINE    ONLINE    rac1        

ora....B2.inst application    ONLINE    ONLINE    rac2        

ora.RACDB.db   application    ONLINE    ONLINE    rac2        

ora....SM1.asm application    ONLINE    ONLINE    rac1        

ora....C1.lsnr application    ONLINE    ONLINE    rac1        

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    





2.查看当前关于crs的进程

[root@rac1 ~]$ ps -ef |grep crs

root     23206     1  0 03:05 ?        00:00:00 /u01/app/oracle/product/10.2.0/db_1/bin/crsd.bin restart

oracle   30815 29217  0 03:10 pts/4    00:00:00 grep crs





3.kill 掉crs进程

[root@rac1 ~]# kill -9 23206

[root@rac1 ~]# crs_stat -t

CRS-0184: Cannot communicate with the CRS daemon.





4.此时crs进程秒级的进入boot状态,还有服务init.crsd 执行

[root@rac1 ~]# ps -ef|grep crs

root       430     1  0 03:12 ?        00:00:00 /bin/sh /etc/init.d/init.crsd run

root       507   474  0 03:12 ?

00:00:00 /bin/su -l oracle -c /u01/app/oracle/product/10.2.0/db_1/bin/crsctl check boot > /tmp/crsctl.474

oracle     508   507  0 03:12 ?        00:00:00 -bash -c /u01/app/oracle/product/10.2.0/db_1/bin/crsctl check boot > /tmp/crsctl.474

oracle     539   508  0 03:12 ?        00:00:00 /u01/app/oracle/product/10.2.0/db_1/bin/crsctl.bin check boot

root       570  2971  0 03:12 pts/4    00:00:00 grep crs





节点2 

[oracle@rac2 ~]$ ps -ef|grep crs

root      4348     1  0 13:56 ?        00:00:01 /u01/app/oracle/product/10.2.0/db_1/bin/crsd.bin reboot

oracle   25981 16487  0 15:16 pts/3    00:00:00 grep crs

[oracle@rac2 ~]$ crs_stat -t

Name           Type           Target    State     Host        

------------------------------------------------------------

ora....B1.inst application    ONLINE    ONLINE    rac1        

ora....B2.inst application    ONLINE    ONLINE    rac2        

ora.RACDB.db   application    ONLINE    ONLINE    rac1        

ora....SM1.asm application    ONLINE    ONLINE    rac1        

ora....C1.lsnr application    ONLINE    ONLINE    rac1        

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      





5.再次查看进程 仅仅有init.crsd进程执行

[root@rac1 ~]# ps -ef|grep crs

root       430     1  0 03:12 ?        00:00:00 /bin/sh /etc/init.d/init.crsd run

root       730  2971  0 03:12 pts/4    00:00:00 grep crs

[root@rac1 ~]# ps -ef|grep crs

root       430     1  0 03:12 ?

00:00:00 /bin/sh /etc/init.d/init.crsd run

root       833  2971  0 03:12 pts/4    00:00:00 grep crs





6.一分钟左右查看

[root@rac1 ~]# ps -ef|grep crs

root       430     1  0 03:12 ?        00:00:00 /u01/app/oracle/product/10.2.0/db_1/bin/crsd.bin restart

root      4813  2971  0 03:14 pts/4    00:00:00 grep crs





此时的crs 服务已经是启动了

[root@rac1 ~]# crs_stat -t

Name           Type           Target    State     Host        

------------------------------------------------------------

ora....B1.inst application    ONLINE    ONLINE    rac1        

ora....B2.inst application    ONLINE    ONLINE    rac2        

ora.RACDB.db   application    ONLINE    ONLINE    rac1        

ora....SM1.asm application    ONLINE    ONLINE    rac1        

ora....C1.lsnr application    ONLINE    ONLINE    rac1        

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

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