服务器出了问题，导致整个cm server界面呈现出不可用的状态，也就是获取不到各个大数据组件以及主机相关的状态的信息，整个cm server的前端界面处于瘫痪的状态，不可用，刚开始怀疑是存放元数据的mysql有问题，但是经过验证，一点问题也没有，后面发现登陆服务器很卡顿，但是发现cpu和内存都没怎么使用，查看/var/log/messages日志，发现很多MCE错误，网上都说只有硬件有问题才会出现这样的错误，后来重启机器，看看这样还会不会继续报错，重启电脑也不能解决问题，暂时判定服务器硬件有问题：这样的话影响到了很多的服务，主要有CM server，datanode，nodemanager，JournalNode等，由于CM server和JournalNode很重要，所以考虑迁移到其他的机器。
/var/log/messages报错信息如下：
Jan 31 17:13:13 lgh kernel: sbridge: HANDLING MCE MEMORY ERROR
Jan 31 17:13:13 lgh kernel: CPU 36: Machine Check Exception: 0 Bank 10: cc002003000800c1
Jan 31 17:13:13 lgh kernel: TSC 0 ADDR 1200417000 MISC 90000b00374068c PROCESSOR 0:406f1 TIME 1612084393 SOCKET 0 APIC 13
Jan 31 17:13:13 lgh kernel: [Hardware Error]: Machine check events logged
Jan 31 17:13:14 lgh kernel: EDAC MC1: CE row 0, channel 0, label "CPU_SrcID#0_Ha#0_Channel#0_DIMM": 128 Unknown error(s): memory scrubbing on FATAL area OVERFLOW:
cpu=36 Err=0008:00c1 (ch=1), addr = 0x1200417000 => socket=0, ha=0, Channel=0(mask=1), rank=0
Jan 31 17:13:14 lgh kernel:
Jan 31 19:37:31 lgh kernel: sbridge: HANDLING MCE MEMORY ERROR
Jan 31 19:37:31 lgh kernel: CPU 39: Machine Check Exception: 0 Bank 10: cc002003000800c1
Jan 31 19:37:31 lgh kernel: TSC 0 ADDR 1200417000 MISC 90000b00374068c PROCESSOR 0:406f1 TIME 1612093051 SOCKET 0 APIC 19
Jan 31 19:37:31 lgh kernel: [Hardware Error]: Machine check events logged
Jan 31 19:37:32 lgh kernel: EDAC MC1: CE row 0, channel 0, label "CPU_SrcID#0_Ha#0_Channel#0_DIMM": 128 Unknown error(s): memory scrubbing on FATAL area OVERFLOW:
cpu=39 Err=0008:00c1 (ch=1), addr = 0x1200417000 => socket=0, ha=0, Channel=0(mask=1), rank=0
Jan 31 19:37:32 lgh kernel: