If you travel with your laptop, get a lock.
如果您带着您的笔记型电脑旅行,买把锁。
Application 1 will execute the export operation and Application 2 will get a lock snapshot while Application 1 is running.
Application 1将执行导出操作,Application 2将在Application 1运行的同时获得一个锁快照。
The app slaves will monitor the health of the app master and if the master fails, the slaves will use a quorum vote in order for one of them to get a lock.
从应用会监控主应用的健康情况,一旦主应用挂掉,从应用会通过法定人数投票来选出其中一个来,去获取一个锁。
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