retroactively repair

System-wide undo mechanism provides operators a relaxed fault-tolerant environment and ability to retroactively repair, significantly reducing the difficulty and cost of failures recovery during the daily system management and maintenance, decreasing the MTTR, ultimately improving the dependability of service system.
系统级的悔改机制为操作者提供了宽松的容错环境和回溯修复的能力,大大降低了系统日常管理维护期间故障恢复的难度和代价,减小了MTTR,并最终提高了服务系统的可靠性。