linux 7安装rac 11gR2时运行root.sh报错找不到ohas服务

jiawang

OS版本：Oracle Linux 7.3

DB版本：11.2.0.4 64bit

数据库运行环境：RAC

运行root.sh脚本的时候报错：

[root@rac01 ~]# /u01/app/11.2.0/grid/root.sh

Performing root user operation for Oracle 11g

The following environment variables are set as:

    ORACLE_OWNER= grid

    ORACLE_HOME=  /u01/app/11.2.0/grid

Enter the full pathname of the local bin directory: [/usr/local/bin]:

   Copying dbhome to /usr/local/bin ...

   Copying oraenv to /usr/local/bin ...

   Copying coraenv to /usr/local/bin ...

Creating /etc/oratab file...

Entries will be added to the /etc/oratab file as needed by

Database Configuration Assistant when a database is created

Finished running generic part of root script.

Now product-specific root actions will be performed.

Using configuration parameter file: /u01/app/11.2.0/grid/crs/install/crsconfig_params

Creating trace directory

User ignored Prerequisites during installation

Installing Trace File Analyzer

OLR initialization - successful

  root wallet

  root wallet cert

  root cert export

  peer wallet

  profile reader wallet

  pa wallet

  peer wallet keys

  pa wallet keys

  peer cert request

  pa cert request

  peer cert

  pa cert

  peer root cert TP

  profile reader root cert TP

  pa root cert TP

  peer pa cert TP

  pa peer cert TP

  profile reader pa cert TP

  profile reader peer cert TP

  peer user cert

  pa user cert

Adding Clusterware entries to inittab

ohasd failed to start

Failed to start the Clusterware. Last 20 lines of the alert log follow:

2018-09-04 16:33:49.623:

[client(68126)]CRS-2101:The OLR was formatted using version 3.

报错原因：

因为RHEL 7使用systemd而不是initd运行进程和重启进程，而root.sh通过传统的initd运行ohasd进程。

解决方法：

步骤如下
1. 创建服务ohas.service的服务文件并赋予权限

touch /usr/lib/systemd/system/ohas.service

chmod 777 /usr/lib/systemd/system/ohas.service

2. 往ohas.service服务文件添加启动ohasd的相关信息

vi /usr/lib/systemd/system/ohas.service

[Unit]
Description=Oracle High Availability Services
After=syslog.target

[Service]
ExecStart=/etc/init.d/init.ohasd run >/dev/null 2>&1 Type=simple
Restart=always

[Install]
WantedBy=multi-user.target

note：把红色部分的内容添加到文件里面

3. 加载，启动服务

重新加载守护进程

systemctl daemon-reload

设置守护进程自动启动

systemctl enable ohas.service

手工启动ohas服务

systemctl start ohas.service

4. 重新运行root.sh脚本

[root@rac02 ~]# /u01/app/11.2.0/grid/root.sh

Performing root user operation for Oracle 11g

The following environment variables are set as:

    ORACLE_OWNER= grid

    ORACLE_HOME=  /u01/app/11.2.0/grid

Enter the full pathname of the local bin directory: [/usr/local/bin]:

   Copying dbhome to /usr/local/bin ...

   Copying oraenv to /usr/local/bin ...

   Copying coraenv to /usr/local/bin ...

Creating /etc/oratab file...

Entries will be added to the /etc/oratab file as needed by

Database Configuration Assistant when a database is created

Finished running generic part of root script.

Now product-specific root actions will be performed.

Using configuration parameter file: /u01/app/11.2.0/grid/crs/install/crsconfig_params

Creating trace directory

User ignored Prerequisites during installation

Installing Trace File Analyzer

OLR initialization - successful

Adding Clusterware entries to inittab

ohasd failed to start

Failed to start the Clusterware. Last 20 lines of the alert log follow:

2018-09-04 16:47:31.342:

[client(71285)]CRS-2101:The OLR was formatted using version 3.

CRS-4402: The CSS daemon was started in exclusive mode but found an active CSS daemon on node rac01, number 1, and is terminating

An active cluster was found during exclusive startup, restarting to join the cluster

Configure Oracle Grid Infrastructure for a Cluster ... succeeded

报错消失

5：查看ohas服务状态

[root@rac01 ~]# systemctl status ohas.service

● ohas.service - Oracle High Availability Services

   Loaded: loaded (/usr/lib/systemd/system/ohas.service; enabled; vendor preset: disabled)

   Active: active (running) since 二 2018-09-04 16:40:00 CST; 19min ago

Main PID: 69080 (init.ohasd)

   CGroup: /system.slice/ohas.service

           └─69080 /bin/sh /etc/init.d/init.ohasd run >/dev/null 2>&1 Type=simple

9月 04 16:40:00 rac01 systemd[1]: Started Oracle High Availability Services.

9月 04 16:40:00 rac01 systemd[1]: Starting Oracle High Availability Services...

[root@rac01 ~]# /u01/app/oraInventory/orainstRoot.sh

Changing permissions of /u01/app/oraInventory.

Adding read,write permissions for group.

Removing read,write,execute permissions for world.

Changing groupname of /u01/app/oraInventory to oinstall.

The execution of the script is complete.