直到HD r次要服务器完成从暂存日志读取数据的操作(在排出模式下)之后，才能在HD r次要服务器上执行onmode - d标准(等待HD r次要服务器变为常规模式)。

Execution of onmode -d standard on HDR secondary completes until HDR secondary completes reading (drain) from logs staged (waits till HDR secondary comes to normal mode).

youdao

使用一个dispatcherqueue来并行的执行调用者和被调用的代码，然后一个操作系统事件会阻塞一个等待结果的公共方法假定一个同步未来模式assuming a synchronous future pattern，看不懂，再汗一个-_- ！

Using a dispatcher queue to execute the code in parallel with the caller and then an OS event to block a public method that waits for the result (assuming a synchronous future pattern).

youdao

使用一个dispatcherqueue来并行的执行调用者和被调用的代码，然后一个操作系统事件会阻塞一个等待结果的公共方法假定一个同步未来模式assuming a synchronous future pattern，看不懂，再汗一个-_- ！

Using a dispatcher queue to execute the code in parallel with the caller and then an OS event to block a public method that waits for the result (assuming a synchronous future pattern).

youdao