急需

为提高效率，提问时请提供以下信息，问题描述清晰可优先响应。

【GBase版本】:

【操作系统】:

【CPU】:

【问题描述】*:Are you sure you want to create the user[gbase] and create trust for it (yes/no)? yes
Preparing SSH service.
Successfully prepared SSH service.
Installing the tools in the cluster.
Successfully installed the tools in the cluster.
Checking hostname mapping.
[GAUSS-51222] : Failed to check hostname mapping. Command: "source /home/gbase/.bashrc;pssh -s -H 10.225.20.68 hostname". Error: 
bash: pssh: command not found
[root@gbase-primary script]# 这又是为什么