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oracel RAC 心跳线对集群的影响

作者:互联网

测试,oracle集群心跳线断开测试集群状态,和实例状态

测试环境 Oracle VM VirtualBox  + centos7.6 + oracle 11.2.0.4 

 

首先登陆系统 ,切换grid用户 查看集群状态

 

[grid@ora01 ~]$ 
[grid@ora01 ~]$ crsctl check cluster -all
**************************************************************
ora01:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
ora02:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
[grid@ora01 ~]$ crsctl status resource  -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATA.dg
               ONLINE  ONLINE       ora01                                        
               ONLINE  ONLINE       ora02                                        
ora.LISTENER.lsnr
               ONLINE  ONLINE       ora01                                        
               ONLINE  ONLINE       ora02                                        
ora.asm
               ONLINE  ONLINE       ora01                    Started             
               ONLINE  ONLINE       ora02                    Started             
ora.gsd
               OFFLINE OFFLINE      ora01                                        
               OFFLINE OFFLINE      ora02                                        
ora.net1.network
               ONLINE  ONLINE       ora01                                        
               ONLINE  ONLINE       ora02                                        
ora.ons
               ONLINE  ONLINE       ora01                                        
               ONLINE  ONLINE       ora02                                        
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       ora01                                        
ora.cvu
      1        ONLINE  ONLINE       ora01                                        
ora.oc4j
      1        ONLINE  ONLINE       ora01                                        
ora.ora01.vip
      1        ONLINE  ONLINE       ora01                                        
ora.ora02.vip
      1        ONLINE  ONLINE       ora02                                        
ora.racdb.db
      1        ONLINE  ONLINE       ora02                    Open                
      2        ONLINE  ONLINE       ora01                    Open                
ora.scan1.vip
      1        ONLINE  ONLINE       ora01                                        
[grid@ora01 ~]$ 

 然后执行将心跳网卡进行断开

[root@ora01 ~]# ifconfig -a
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.101  netmask 255.255.255.0  broadcast 192.168.10.255
        inet6 fe80::bd5b:e413:3edd:c01f  prefixlen 64  scopeid 0x20<link>
        ether 08:00:27:00:9c:5a  txqueuelen 1000  (Ethernet)
        RX packets 3572  bytes 400791 (391.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2350  bytes 564088 (550.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s3:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.103  netmask 255.255.255.0  broadcast 192.168.10.255
        ether 08:00:27:00:9c:5a  txqueuelen 1000  (Ethernet)

enp0s3:2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.105  netmask 255.255.255.0  broadcast 192.168.10.255
        ether 08:00:27:00:9c:5a  txqueuelen 1000  (Ethernet)

enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.10.10.11  netmask 255.255.255.0  broadcast 10.10.10.255
        ether 08:00:27:11:ea:cc  txqueuelen 1000  (Ethernet)
        RX packets 79827  bytes 50003883 (47.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 122597  bytes 111817875 (106.6 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s8:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 169.254.3.181  netmask 255.255.0.0  broadcast 169.254.255.255
        ether 08:00:27:11:ea:cc  txqueuelen 1000  (Ethernet)

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 41231  bytes 27932232 (26.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 41231  bytes 27932232 (26.6 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@ora01 ~]# ifconfig enp0s8 down 
[root@ora01 ~]# ethtool enp0s8
Settings for enp0s8:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Speed: 1000Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: Unknown (auto)
        Supports Wake-on: umbg
        Wake-on: d
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: no
[root@ora01 ~]# 

  可看到enp0s8 卡执行断开处于未连接状态。

节点一上ping 心跳地址

[root@ora01 ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.10.101 ora01
192.168.10.102 ora02
192.168.10.103 ora01-vip
192.168.10.104 ora02-vip
192.168.10.105 rac-scan 
10.10.10.11 ora01-priv
10.10.10.12 ora02-priv

[root@ora01 ~]# ping 10.10.10.11
PING 10.10.10.11 (10.10.10.11) 56(84) bytes of data.
64 bytes from 10.10.10.11: icmp_seq=1 ttl=64 time=0.018 ms
64 bytes from 10.10.10.11: icmp_seq=2 ttl=64 time=0.021 ms
^C
--- 10.10.10.11 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.018/0.019/0.021/0.004 ms
[root@ora01 ~]# ping 10.10.10.12
connect: Network is unreachable
[root@ora01 ~]# ping 10.10.10.12
connect: Network is unreachable
[root@ora01 ~]# 

  

节点二上发起ping 

[root@ora02 ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.10.101 ora01
192.168.10.102 ora02
192.168.10.103 ora01-vip
192.168.10.104 ora02-vip
192.168.10.105 rac-scan 
10.10.10.11 ora01-priv
10.10.10.12 ora02-priv

[root@ora02 ~]# ping 10.10.10.11
PING 10.10.10.11 (10.10.10.11) 56(84) bytes of data.
From 10.10.10.12 icmp_seq=1 Destination Host Unreachable
From 10.10.10.12 icmp_seq=2 Destination Host Unreachable
From 10.10.10.12 icmp_seq=3 Destination Host Unreachable
From 10.10.10.12 icmp_seq=4 Destination Host Unreachable
From 10.10.10.12 icmp_seq=5 Destination Host Unreachable
From 10.10.10.12 icmp_seq=6 Destination Host Unreachable
From 10.10.10.12 icmp_seq=7 Destination Host Unreachable
^C
--- 10.10.10.11 ping statistics ---
8 packets transmitted, 0 received, +7 errors, 100% packet loss, time 7003ms
pipe 4
[root@ora02 ~]# ping 10.10.10.12
PING 10.10.10.12 (10.10.10.12) 56(84) bytes of data.
64 bytes from 10.10.10.12: icmp_seq=1 ttl=64 time=0.012 ms
64 bytes from 10.10.10.12: icmp_seq=2 ttl=64 time=0.047 ms
64 bytes from 10.10.10.12: icmp_seq=3 ttl=64 time=0.038 ms
64 bytes from 10.10.10.12: icmp_seq=4 ttl=64 time=0.024 ms
64 bytes from 10.10.10.12: icmp_seq=5 ttl=64 time=0.025 ms
^C
--- 10.10.10.12 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3999ms
rtt min/avg/max/mdev = 0.012/0.029/0.047/0.012 ms
[root@ora02 ~]# 

  

 查看集群状态 ,(crsctl check cluster -all 此处的命令运行会很慢,)

[grid@ora01 ~]$ crsctl check cluster -all 
**************************************************************
ora01:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
CRS-4404: The following nodes did not reply within the allotted time:
ora02
[grid@ora01 ~]$ crsctl status resource  -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATA.dg
               ONLINE  ONLINE       ora01                                        
ora.LISTENER.lsnr
               ONLINE  ONLINE       ora01                                        
ora.asm
               ONLINE  ONLINE       ora01                    Started             
ora.gsd
               OFFLINE OFFLINE      ora01                                        
ora.net1.network
               ONLINE  ONLINE       ora01                                        
ora.ons
               ONLINE  ONLINE       ora01                                        
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       ora01                                        
ora.cvu
      1        ONLINE  ONLINE       ora01                                        
ora.oc4j
      1        ONLINE  ONLINE       ora01                                        
ora.ora01.vip
      1        ONLINE  ONLINE       ora01                                        
ora.ora02.vip
      1        ONLINE  INTERMEDIATE ora01                    FAILED OVER         
ora.racdb.db
      1        ONLINE  OFFLINE                                                   
      2        ONLINE  ONLINE       ora01                    Open                
ora.scan1.vip
      1        ONLINE  ONLINE       ora01                                        
[grid@ora01 ~]$ 

  节点二上执行

[grid@ora02 ~]$ crsctl status resource  -t
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4000: Command Status failed, or completed with errors.
[grid@ora02 ~]$ 

  验证scan ip

[root@ora01 ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.10.101 ora01
192.168.10.102 ora02
192.168.10.103 ora01-vip
192.168.10.104 ora02-vip
192.168.10.105 rac-scan 
10.10.10.11 ora01-priv
10.10.10.12 ora02-priv

[root@ora01 ~]# ifconfig -a   
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.101  netmask 255.255.255.0  broadcast 192.168.10.255
        inet6 fe80::bd5b:e413:3edd:c01f  prefixlen 64  scopeid 0x20<link>
        ether 08:00:27:00:9c:5a  txqueuelen 1000  (Ethernet)
        RX packets 4098  bytes 450704 (440.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2705  bytes 624291 (609.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s3:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.103  netmask 255.255.255.0  broadcast 192.168.10.255
        ether 08:00:27:00:9c:5a  txqueuelen 1000  (Ethernet)

enp0s3:2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.105  netmask 255.255.255.0  broadcast 192.168.10.255
        ether 08:00:27:00:9c:5a  txqueuelen 1000  (Ethernet)

enp0s3:3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.104  netmask 255.255.255.0  broadcast 192.168.10.255
        ether 08:00:27:00:9c:5a  txqueuelen 1000  (Ethernet)

enp0s8: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        inet 10.10.10.11  netmask 255.255.255.0  broadcast 10.10.10.255
        ether 08:00:27:11:ea:cc  txqueuelen 1000  (Ethernet)
        RX packets 80248  bytes 50249772 (47.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 122987  bytes 112043888 (106.8 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s8:1: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        inet 169.254.3.181  netmask 255.255.0.0  broadcast 169.254.255.255
        ether 08:00:27:11:ea:cc  txqueuelen 1000  (Ethernet)

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 47186  bytes 34097104 (32.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 47186  bytes 34097104 (32.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@ora01 ~]# 

  

验证数据库连接是否正常:

 

 

[oracle@ora01 ~]$ sqlplus system/oracle@192.168.10.105:1521/racdb 

SQL*Plus: Release 11.2.0.4.0 Production on Wed Jun 29 08:09:29 2022

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL> select username from t_user where rownum<10
  2  /
select username from t_user where rownum<10
                     *
ERROR at line 1:
ORA-00942: table or view does not exist


SQL> c/t_user/dba_users
  1* select username from dba_users where rownum<10
SQL> /

USERNAME
------------------------------
SYS
SYSTEM
WENXIAO
OUTLN
MGMT_VIEW
FLOWS_FILES
MDSYS
ORDSYS
EXFSYS

9 rows selected.

SQL> select instance_name ,status from gv$instances  
  2  /
select instance_name ,status from gvnstances
                                    *
ERROR at line 1:
ORA-00911: invalid character


SQL> select instance_name ,status from gv$instance;

INSTANCE_NAME    STATUS
---------------- ------------
racdb1           OPEN

SQL> select open_mode from gv$database; 

OPEN_MODE
--------------------
READ WRITE

SQL> 

  

节点一上的心跳网卡down掉,主节点实例不受影响,racdb1正常,racdb2被提出集群,实例受到影响。

 

将心跳网卡启用后,集群自动恢复,

 

标签:RAC,oracel,192.168,集群,ONLINE,ora01,10.10,ora02,ora
来源: https://www.cnblogs.com/wenxiao1-2-3-4/p/16422856.html