进程启动参数里 cpu_count=2 这个太小了。改为 cpu_count=16 。 可以重新带参数启动节点。不用管实际虚拟机有没有16个cpu。ob不检查这个。
然后再试试。
查一下下面两个SQL结果。

select zone,concat(SVR_IP,':',SVR_PORT) observer, cpu_capacity_max cpu_total,cpu_assigned_max cpu_assigned, cpu_capacity-cpu_assigned_max as cpu_free, round(memory_limit/1024/1024/1024,2) as memory_total, round((memory_limit-mem_capacity)/1024/1024/1024,2) as system_memory, round(mem_assigned/1024/1024/1024,2) as mem_assigned, round((mem_capacity-mem_assigned)/1024/1024/1024,2) as memory_free, round(log_disk_capacity/1024/1024/1024,2) as log_disk_capacity, round(log_disk_assigned/1024/1024/1024,2) as log_disk_assigned, round((log_disk_capacity-log_disk_assigned)/1024/1024/1024,2) as log_disk_free, round((data_disk_capacity/1024/1024/1024),2) as data_disk, round((data_disk_in_use/1024/1024/1024),2) as data_disk_used, round((data_disk_capacity-data_disk_in_use)/1024/1024/1024,2) as data_disk_free from gv$ob_servers;

select t1.name resource_pool_name, t2.`name` unit_config_name, t2.max_cpu, t2.min_cpu, round(t2.memory_size/1024/1024/1024,2) mem_size_gb, round(t2.log_disk_size/1024/1024/1024,2) log_disk_size_gb, t2.max_iops, t2.min_iops, t3.unit_id, t3.zone, concat(t3.svr_ip,':',t3.`svr_port`) observer, t4.tenant_id, t4.tenant_name from __all_resource_pool t1 join __all_unit_config t2 on (t1.unit_config_id=t2.unit_config_id) join __all_unit t3 on (t1.`resource_pool_id` = t3.`resource_pool_id`) left join __all_tenant t4 on (t1.tenant_id=t4.tenant_id) order by t1.`resource_pool_id`, t2.`unit_config_id`, t3.unit_id;