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关于分库分表可扩容部分的建议 #276

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602122993 opened this issue Sep 26, 2022 · 3 comments
Open

关于分库分表可扩容部分的建议 #276

602122993 opened this issue Sep 26, 2022 · 3 comments
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enhancement New feature or request

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@602122993
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在如何设计一个可以动态扩容缩容的分库分表方案中,直接简单粗暴的份32*32的方式明显不符合当前面试情况,而且也不太支持所谓的动态扩容所容,建议可以新增一个方案利用hash+range的方式,进行动态扩容缩容。

@yanglbme
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感谢建议,会考虑新增

@doocs doocs deleted a comment Sep 27, 2022
@yanglbme yanglbme added the enhancement New feature or request label Sep 28, 2022
@1725636955
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在如何设计一个可以动态扩容缩容的分库分表方案中,直接简单粗暴的份32*32的方式明显不符合当前面试情况,而且也不太支持所谓的动态扩容所容,建议可以新增一个方案利用hash+range的方式,进行动态扩容缩容。

具体方案,老哥有文档链接吗或者可以简单描述下吗?我想学习下

@doocs doocs deleted a comment from yongroot Dec 18, 2023
@iyuzhang
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在如何设计一个可以动态扩容缩容的分库分表方案中,直接简单粗暴的份32*32的方式明显不符合当前面试情况,而且也不太支持所谓的动态扩容所容,建议可以新增一个方案利用hash+range的方式,进行动态扩容缩容。

具体方案,老哥有文档链接吗或者可以简单描述下吗?我想学习下

我理解其实就是映射分组的思路,原先的id在固定在某个值A以下,id<A的放入原先分库分表内,id>=A的,另起一套分库。唯一需要注意的点是先分组,再hash,若ID本身就是线性增长的,用不用hash都无所谓。

@doocs doocs deleted a comment from yongroot Dec 20, 2024
@doocs doocs deleted a comment from xiaopan1916 Dec 20, 2024
@doocs doocs deleted a comment from lujocom Dec 20, 2024
@doocs doocs deleted a comment from zhFuture Dec 20, 2024
@doocs doocs deleted a comment from kevin0016 Dec 20, 2024
@doocs doocs deleted a comment from onions1111 Dec 20, 2024
@doocs doocs deleted a comment from tigerlee0209 Dec 20, 2024
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@iyuzhang @yanglbme @602122993 @1725636955 and others