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redis的AOF 方式 #783

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@cafe3165

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@cafe3165
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为了兼顾数据和写入性能,用户可以考虑 appendfsync everysec 选项 ,让 Redis 每秒同步一次 AOF 文件,Redis 性能几乎没受到任何影响。而且这样即使出现系统崩溃,用户最多只会丢失一秒之内产生的数据。当硬盘忙于执行写入操作的时候,Redis 还会优雅的放慢自己的速度以便适应硬盘的最大写入速度。

该如何理解这句话呢? 当硬盘忙于执行写入操作的时候,Redis 还会优雅的放慢自己的速度以便适应硬盘的最大写入速度

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