It immediately deletes the files as soon as it has read all data during drain mode.
只要在使用排出模式期间读取了所有数据,就会立即删除这些文件。
This is a long time to read all data on a single drive - and writing is even slower.
在单驱动的设备上读取所有的数据需要很长时间,写入就更慢了。
In a read transaction, there are no changes to commit, but the transaction prevents the data being read from changing until all of the reads are complete.
在读事务中,没有变更需要提交,但是事务会防止对正在被读取的数据的修改,直到所有的读操作全部结束。
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