在决定要使用哪一个选项时，最重要的考虑事项是在传播每个记录时，文件中的多少数据应该通过消息流发送。

When deciding which option to use, the most important consideration is how much data from the file should be sent through the message flow with the propagation of each record.

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例如如果重做日志缓冲满了，或者有其它的事务提交了。LGWR进程会把所有在重做日志缓冲中的重做日志事项写入重做文件，即使是一些重做记录可能还没有提交。

If the redo log buffer fills, or another transaction commits, LGWR flushes all of the redo log entries in the redo log buffer to a redo log file, even though some redo records may not be committed.

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例如如果重做日志缓冲满了，或者有其它的事务提交了。LGWR进程会把所有在重做日志缓冲中的重做日志事项写入重做文件，即使是一些重做记录可能还没有提交。

If the redo log buffer fills, or another transaction commits, LGWR flushes all of the redo log entries in the redo log buffer to a redo log file, even though some redo records may not be committed.

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