@satz The image is the result of the last check step, which is to connect to localhost:7180 and add the cluster after installing the OS using the commands on the trial install page. In this situation, the status of the cluster shows that namenode is down. After that, no matter how many times you refresh the page or restart through the command in the OS, you will get the access denied (page cannot be opened) message when you connect to the CM. Also, I install it on one OS and proceed, but sometimes, during the process of adding a cluster, only the OS installed at the time of host inspection is installed in the cluster, and the rest of the OSs are removed. (Sometimes I can completely reinstall the OSs afterward, and sometimes I can't, but I don't know the difference. The log is so long that I want to upload the file, but there is no upload function. ... View more