English to Chinese Tech/Engineering IT (Information Technology) Google

The outage was caused by a lack of memory in the company's cache servers, according to an internal investigation by the company published today. "The trigger of the incident was a bulk update of group memberships that {expanded to} an unexpectedly high number of modified permissions, which generated a large backlog of queued mutations to be applied in real-time," the investigation said.
组成员增加到了数量高得异常的修改后权限？
好别扭