CRS-4544: Unable to connect to OHAS has启动失败

环境：rhel7.5 onenode 11.2.0.3

问题：has启动失败或者执行root.sh时失败，报错如下

has启动失败
[root@xxx crs]# /oracle/app/11.2.0/grid/bin/crsctl stop has -f
CRS-4544: Unable to connect to OHAS
CRS-4000: Command Stop failed, or completed with errors.

在执行root.sh时失败

[root@xxx ~]# /oracle/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= /oracle/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: /oracle/app/11.2.0/grid/crs/install/crsconfig_params

Creating trace directory

LOCAL ADD MODE

Creating OCR keys for user 'grid', privgrp 'oinstall'..

Operation successful.

LOCAL ONLY MODE

Successfully accumulated necessary OCR keys.

Creating OCR keys for user 'root', privgrp 'root'..

Operation successful.

CRS-4664: Node credadg01 successfully pinned.

Adding Clusterware entries to inittab

ohasd failed to start

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

2019-03-12 14:33:15.293

[client(56861)]CRS-2101:The OLR was formatted using version 3.

2019-03-12 14:33:15.617

[client(56959)]CRS-1001:The OCR was formatted using version 3.

ohasd failed to start at /oracle/app/11.2.0/grid/crs/install/roothas.pl line 358, <ALERTLOG> line 4.

/oracle/app/11.2.0/grid/perl/bin/perl -I/oracle/app/11.2.0/grid/perl/lib -I/oracle/app/11.2.0/grid/crs/install /oracle/app/11.2.0/grid/crs/install/roothas.pl execution failed

解决办法1：临时解决办法，dd

1.1 如果是has启动失败，需要杀掉gi的所有进程，然后dd npohasd，启动has

在另一个窗口执行
[root@xxx ~]# dd if=/var/tmp/.oracle/npohasd of=/dev/null bs=1024 count=1
然后重新启动has
[root@xxx crs]# /oracle/app/11.2.0/grid/bin/crsctl start has
CRS-4123: Oracle High Availability Services has been started.

1.2 如果是root.sh执行失败，需要deconfig，然后dd npohasd，重跑root.sh

step1. deconfig

[root@xxx ~]/oracle/app/11.2.0/grid/crs/install/roothas.pl -deconfig -verbose -force

如果deconfig有报错，可能需要执行下面的命令（注意路径更改）
[root@xxx ~] cp -p /oracle/app/11.2.0/grid/perl/lib/5.10.0/Env.pm /usr/lib64/perl5/vendor_perl/

(12.2: cp -p /oracle/app/12.2.0/grid/perl/lib/5.10.0/Env.pm /usr/lib64/perl5/vendor_perl/)

step2 在另一个窗口执行dd
[root@xxx ~]# dd if=/var/tmp/.oracle/npohasd of=/dev/null bs=1024 count=1

step 3 root.sh

/oracle/app/11.2.0/grid/root.sh

(总之，在启动has时，dd）

解决办法2：一劳永逸

添加服务

step1.

vi /etc/systemd/system/ohasd.service
[Unit]
Description=OracleHigh 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

step2.
systemctl daemon-reload
systemctl enable ohasd.service
systemctl start ohasd.service

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