今天在公司测试Linux bridge搭建,为了使内部docker容器的网络能够不经过2层封装转发对外公布,顾试用一下bridge功能,结果碰到报错:"Bringing up interface eno16777736: Error: Connection activation failed: Master connection not found or invalid" 具体错误是: Mar 16 10:56:04 cloud01 systemd[1]: Starting LSB:…
转自:http://www.iteblog.com/archives/831 如果你想查询某个表的某一列,Hive默认是会启用MapReduce Job来完成这个任务,如下: hive> SELECT ; Total MapReduce jobs = Launching Job out of Number of reduce tasks is set to since there's no reduce operator Cannot run job locally: Input Size (=…
第一次启用VTX技术支持启动android的虚拟机,启动时提示如下错误: Starting emulator for AVD 'AVD_for_Android_TV_1080p_by_Google'emulator: WARNING: Requested RAM size of 2048MB is too large for your environment, and is reduced to 1536MB.emulator: device fd:516HAX is working and e…