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        <title>两阶段原生恢复</title>
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        <description>解释原生恢复为何在整个 tier 下载期间持有对象锁，#281 的第一版修复为何还会让失败的普通上传卡住，以及在锁外暂存、再做一次短暂且经过核验的提交，如何取代私有 upload。</description>
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        <title>大型单池集群的锁域</title>
        <link>https://silo.pgsty.com/zh/blog/design/single-pool-lock-domains/</link>
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        <description>解释在纠删集不共享相同主机的分布式单池部署中，DELETE 与 CopyObject 为何可能无法与同一键上的 PUT 互斥；哪些布局受影响；竞争对 xl.meta 造成什么后果；以及关闭它的最小路由改动。</description>
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