来源:DEFAULT_PERMISSION_CLASSES will only work for the views or objects that don't haveYou don't necessarily need to use built-in classes here.问题:set permissions explicitly是什么意思?
elasticsearch日志示例格式:[2017-08-30T06:27:19,158][WARN ][o.e.m.j.JvmGcMonitorService] [Glsuj_2] [gc][296816] overhead, spent [1.2s] collecting in the last [1.3s]o.e.m.j.JvmGcMonitorService是什么意思?什么是gc?
什么是296816?