https://luanrz.github.io/tags/%E7%BC%93%E5%AD%98/Recent content in 缓存 on luanrz's blogHugozh-cnSun, 19 Feb 2023 22:06:40 +0800https://luanrz.github.io/posts/%E4%B8%AD%E9%97%B4%E4%BB%B6/redis%E7%BC%93%E5%AD%98%E5%88%86%E5%B8%83%E5%BC%8F%E7%BC%93%E5%AD%98%E9%85%8D%E7%BD%AE%E4%B8%8E%E5%A4%9A%E7%BA%A7%E7%BC%93%E5%AD%98%E7%AE%80%E4%BB%8B/Sun, 19 Feb 2023 22:06:40 +0800https://luanrz.github.io/posts/%E4%B8%AD%E9%97%B4%E4%BB%B6/redis%E7%BC%93%E5%AD%98%E5%88%86%E5%B8%83%E5%BC%8F%E7%BC%93%E5%AD%98%E9%85%8D%E7%BD%AE%E4%B8%8E%E5%A4%9A%E7%BA%A7%E7%BC%93%E5%AD%98%E7%AE%80%E4%BB%8B/<p>分布式缓存与多级缓存可以实现服务的高性能和高可用。下面将介绍一下分布式缓存中主从集群与哨兵集群的配置，与多级缓存的基本场景。</p> <h2 id="一分布式缓存配置">一、分布式缓存配置</h2> <h3 id="一主从集群">（一）主从集群</h3> <p>主从集群一般由一个负责写的主节点和多个负责读的从节点组成。下面将演示在本机搭建一个三节点的主从集群，它们的端口号分别为：7001、7002、7003，其中，7001为主节点。</p>https://luanrz.github.io/posts/%E4%B8%AD%E9%97%B4%E4%BB%B6/redis%E7%BC%93%E5%AD%98%E7%BC%93%E5%AD%98%E5%BB%B6%E8%BF%9F%E4%B8%8E%E7%BC%93%E5%AD%98%E5%A4%B1%E6%95%88/Sat, 11 Feb 2023 18:48:13 +0800https://luanrz.github.io/posts/%E4%B8%AD%E9%97%B4%E4%BB%B6/redis%E7%BC%93%E5%AD%98%E7%BC%93%E5%AD%98%E5%BB%B6%E8%BF%9F%E4%B8%8E%E7%BC%93%E5%AD%98%E5%A4%B1%E6%95%88/<p>Redis缓存延迟指的是：Redis与数据库发生同步过程中Redis数据状态滞后的现象。缓存延迟涉及到数据一致性与缓存更新策略的选择。</p> <p>Redis缓存失效指的是：因为缓存穿透、缓存击穿、缓存雪崩等原因导致Redis缓存查询不到的情况。</p>https://luanrz.github.io/posts/%E4%B8%AD%E9%97%B4%E4%BB%B6/redis%E7%BC%93%E5%AD%98%E5%B8%B8%E7%94%A8%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E5%9F%BA%E6%9C%AC%E7%94%A8%E6%B3%95/Wed, 08 Feb 2023 09:03:02 +0800https://luanrz.github.io/posts/%E4%B8%AD%E9%97%B4%E4%BB%B6/redis%E7%BC%93%E5%AD%98%E5%B8%B8%E7%94%A8%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E4%B8%8E%E5%9F%BA%E6%9C%AC%E7%94%A8%E6%B3%95/<p><a href="https://redis.io/">Redis</a>是一种基于内存的高性能NoSQL数据库，它最常见的一种应用场景就是缓存。本文将首先演示Redis的安装过程，随后介绍一些Redis常用的数据结构及其对应的命令，最后将会基于Spring实现Redis的读写。</p> <h2 id="一安装redis">一、安装Redis</h2> <p>下面将简单介绍Linux、Mac与Docker安装Redis的过程，更详细的安装说明可以参见<a href="https://redis.io/docs/getting-started/installation/">Redis安装官方页面</a>。</p> <h3 id="一安装redis-1">（一）安装Redis</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span><span style="color:#75715e"># Linux</span> </span></span><span style="display:flex;"><span>sudo pacman -S redis <span style="color:#75715e"># ArchLinux</span> </span></span><span style="display:flex;"><span>sudo apt install redis <span style="color:#75715e"># Debian / Ubuntu</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># Mac</span> </span></span><span style="display:flex;"><span>brew install redis </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># Docker</span> </span></span><span style="display:flex;"><span>docker run --name redis1 -dp 6379:6379 redis:latest </span></span></code></pre></div><blockquote> <p>Windows系统可以通过<code>wsl</code>安装Linux版本的redis。Docker运行Redis可以参见<a href="https://hub.docker.com/_/redis/">Redos的DockerHub官方页面</a>。</p> </blockquote>