如出现类似错误

[error] 15887#15887: *48251 upstream sent too big header while reading response header from upstream, client: 127.0.0.1, server: test.io, ……

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需要安装ceph-deploy，如果未安装执行以下命令安装：

sudo yum install ceph-deploy python-pushy

版本号查看：https://docs.ceph.com/en/latest/releases/#ceph-releases-index

运行升级命令：

ceph-deploy install --release {release-name} ceph-node1[ ceph-node2]
例如：
ceph-deploy install --release nautilus ceph-node-1 ceph-node-2 ceph-node-3  ceph-node-4

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