UIS prompts server abnormal when adding a new host node

E0785P03H02

现场部署了CAS集群，原本三节点，版本为E0785P03，但打了热补丁H02，新增第四个节点时，发现加入失败。

查看新节点服务器硬件状态，均正常，无报错。

新加入节点与原集群CVM的网络检查无报错，能正常SSH

查看cas.log，发现下列报错

It has been confirmed that for environments where this patch version has been installed, when expansion is required, the host to be expanded must first be upgraded to this patch version before it is allowed to join the cluster. However, the newly added nodes to the cluster on-site were not deployed with the H02 patch and still use E0785P03, so the joining failed.

The separate host patch upgrade is performed through the background hotpatch-manage.sh script. After completion, add the host to the environment. 

The specific command for the background patch upgrade is: hotpatch-manage.sh install -h localhos + the name of the patch compressed package.