在部署时，中控机和数据库节点上真的需要sshpass么？
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Description
File: /release-8.5/hardware-and-software-requirements.md
在部署时，中控机和数据库节点上真的需要sshpass么？翻看整个安装过程的文档，没看到使用它。我实际验证了没有安装sshpass的linux环境（RHEL8，CentOS7），能成功部署、启动、连接数据库。因此实际上并不需要sshpass？
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Research direction
Start with release-8.5/hardware-and-software-requirements.md and search the deployment documentation for sshpass references and installation requirements. Compare those statements with the documented deployment process and the reported RHEL 8 and CentOS 7 results; done means the prerequisites accurately state whether sshpass is required.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- linux
- Domain
- devops, documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 68/100