[omm@gsmaster ~]$ gs_install  -X /opt/opengauss/clusterconfig.xml 
Parsing the configuration file.
Check preinstall on every node.
Successfully checked preinstall on every node.
Creating the backup directory.
Successfully created the backup directory.
begin deploy..
Installing the cluster.
begin prepare Install Cluster..
Checking the installation environment on all nodes.
[FAILURE] gsmaster:
Checking old installation.
[GAUSS-51806] : The cluster has been installed.
[FAILURE] gsslave:
Checking old installation.
[GAUSS-51806] : The cluster has been installed.

[omm@gsmaster ~]$ more .bashrc 
# .bashrc

# Source global definitions
if [ -f /etc/bashrc ]; then
	. /etc/bashrc
fi

# Uncomment the following line if you don't like systemctl's auto-paging feature:
# export SYSTEMD_PAGER=

# User specific aliases and functions
export GAUSS_ENV=2
export GS_CLUSTER_NAME=myCluster
export GAUSSHOME=/opt/huawei/install/app
export PATH=$GAUSSHOME/bin:$PATH
export LD_LIBRARY_PATH=$GAUSSHOME/lib:$LD_LIBRARY_PATH
export S3_CLIENT_CRT_FILE=$GAUSSHOME/lib/client.crt
export GAUSS_VERSION=1.1.0
export PGHOST=/opt/huawei/tmp
export GAUSSLOG=/var/log/omm/omm
umask 077