群集文件系统日志记录 UFS
为什么不使用更复杂的日志记录机制来跟踪哪些文件已经上传，以及何时上传?
Why not use a more sophisticated logging mechanism to keep track of which files have been uploaded and when?
与循环日志记录相比，当最后一个日志文件写满时，归档日志记录过程会创建一个新的日志文件，这样将来的事务就不会覆盖现有的日志文件。
In contrast to circular logging, the archival logging process creates a new log file when the last log file is filled so that future transactions will not overwrite existing log files.
与传统的文件日志记录机制相比，循环缓冲区提供了下列优势。
A ring buffer provides the following advantages over the traditional file logging mechanism.
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