主服务器的日志写入和对于备用服务器的发送在主服务器上是并行执行的。
The log write at the primary and the send to the standby are performed in parallel on the primary server.
而备用服务器直到从主服务器收到消息，得知它磁盘上具有相同的日志，才写入该日志。
The standby system does not write the log until it hears from the primary that that the same log is on disk there.
主服务器生成的日志由辅助服务器处理；因此所有服务器都必须处于相同的二进制可执行文件上。
The logs generated by the primary server are processed by the secondary server; hence all servers must be on the same binary executable.
如同在HDR中一样，主服务器不断将其所有的逻辑日志记录发送给RS备用服务器，不过RS使用的异步方式。
As in HDR, the primary server sends all its logical log records to the RS secondary server continuously, except now only in an asynchronous manner.
添加不同的服务器将阻碍主服务器收回恢复日志，且主服务器不能正确启动。
Adding a different server prevents the home server from owning its recovery logs and stops the home server from starting correctly.
该模式下，当日志数据存在于主服务器的磁盘上，且备用服务器已经收到了日志数据时，提交(commit)就成功了。
In this mode, a commit succeeds when the log data is on disk at the primary and it has been received by the standby server.
持久性设为adaptive意味着如果备用服务器也在活动，那么主服务器以宽松的日志记录模式操作。
The adaptive durability setting means that the primary server operates in relaxed logging mode if the secondary server is also active.
复制是通过OpenLDAP 复制进程 slurpd提供的，它会周期性地唤醒，并检查主服务器上的日志文件，从而确定是否有任何更新。
Replication is provided by the OpenLDAP replication daemon, slurpd, which periodically wakes up and checks a log file on the master for any updates.
Synchronous(同步)(零数据丢失)-主服务器进行提交之前，要先将日志数据写入备用服务器中的稳定存储器。
Synchronous (zero data loss) - the log data is flushed to stable storage at the standby before committing on the primary.
Synchronous(同步)(零数据丢失)-主服务器进行提交之前，要先将日志数据写入备用服务器中的稳定存储器。
Synchronous (zero data loss) - the log data is flushed to stable storage at the standby before committing on the primary.
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