add logseq-java
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logseq-java/pages/redis执行命令有死循环阻塞bug.md
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logseq-java/pages/redis执行命令有死循环阻塞bug.md
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- randomkey
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- 随机返回一个未过期的key
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- 如果存在大量过期未删除的key,会不断查找并清除过期key
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- 如果slave节点上性能更差,master要先清理才会同步到slave,slave不会删除过期的key,会一直在过期的key里面查找
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