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    <title>Serializable-Read on Inkwell Corner</title>
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      <title>Leader 不参与读请求？etcd 线性读实现揭秘</title>
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      <pubDate>Mon, 22 Jun 2026 15:57:38 +0800</pubDate>
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      <description>&lt;p&gt;在很多分布式系统中，读请求通常都会转发给 Leader。&lt;/p&gt;
&lt;p&gt;原因很简单：只有 Leader 才知道哪些日志已经提交（committed），哪些数据是最新的。&lt;/p&gt;
&lt;p&gt;但 etcd 允许 Follower 节点直接处理线性一致读（Linearizable Read）。&lt;/p&gt;</description>
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