设计Mint.com #37
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设计Mint.com #37
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linhe0x0
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Jul 19, 2017
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| *Note: This document links directly to relevant areas found in the [system design topics](https://github.com/donnemartin/system-design-primer#index-of-system-design-topics) to avoid duplication. Refer to the linked content for general talking points, tradeoffs, and alternatives.* | ||
| *注意：这个文档中的链接会直接指向[系统设计主题索引](https://github.com/donnemartin/system-design-primer/blob/master/README-zh-Hans.md#系统设计主题索引)中的有关部分，以避免重复的内容。您可以参考链接的相关内容，来了解其总的要点、方案的权衡取舍以及可选的替代方案。* |
| * `seller` - 32 字节 | ||
| * `amount` - 5 字节 | ||
| * Total: ~50 字节 | ||
| * 每月产生 250 GB 新的交易内容 | ||
| * 50 bytes per transaction * 5 billion transactions per month |
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| ## Step 2: Create a high level design | ||
| ## 第二步：高层设计 |
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『high level design』可译『概要设计』，详情请参考：donnemartin#70
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| For the **Category Service**, we can seed a seller-to-category dictionary with the most popular sellers. If we estimate 50,000 sellers and estimate each entry to take less than 255 bytes, the dictionary would only take about 12 MB of memory. | ||
| 对于 **分类服务**, 我们可以生成一个带有最受欢迎卖家的卖家-类别字典。如果我们估计50000个卖家，并估计每个条目占用不少于255个字节，该字典只需要大约12MB内存。 |
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- 数字前后添加一个空格。
- 『分类服务』后面的逗号改为全角符号。
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@sqrthree 多谢指正，已做调整。 |
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@whatbeg 好的哈，积分最晚下周一加上，感谢支持。 |
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@sqrthree Mint #14 翻译完成