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      <title>Redis Cluster 扩缩容与数据迁移实战：从 SETSLOT 到 Atomic Slot Migration</title>
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      <pubDate>Fri, 08 Nov 2024 10:30:00 +0800</pubDate>
      <author>17691281867@163.com (Wenzhuo Huang)</author>
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      <description>很多团队把 Redis Cluster 当成&amp;quot;开箱即用&amp;quot;的分布式 Redis，直到要做扩缩容或数据迁移时才发现：SETSLOT 协议里有十几种状态，迁移过程中客户端重定向要么不生效要么风暴，migrate 卡住没法断，big key 直接把迁移拖垮。这篇文章把我在几套千亿级 Cluster 上做过的扩缩容、迁移、救火全过一遍。</description>
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