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Update redis知识点&面试题总结.md

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guide 2021-11-24 21:07:55 +08:00
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docs/database/redis/redis知识点&面试题总结.md
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@ -583,7 +583,10 @@ appendfsync no #让操作系统决定何时进行同步
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。
**相关 issue** ：[783：Redis 的 AOF 方式](https://github.com/Snailclimb/JavaGuide/issues/783)
**相关 issue** ：
- [Redis 的 AOF 方式 #783](https://github.com/Snailclimb/JavaGuide/issues/783)
- [Redis AOF 重写描述不准确 #1439](https://github.com/Snailclimb/JavaGuide/issues/1439)
**拓展：Redis 4.0 对于持久化机制的优化**