档案库 · 开发与企业工具 · 产品决策 · 2011
MemSQL融资210万美元，押注内存SQL可取代磁盘数据库
YC 2011冬季班学员MemSQL从SV Angel、First Round和Ashton Kutcher处获得210万美元种子投资，赌的是兼容MySQL的内存SQL比磁盘数据库更快。
MemSQL
做的是什么生意
MemSQL builds an in-memory relational database: it keeps data in RAM for faster reads, writes and realtime analytics while speaking the MySQL protocol, so applications already talking to MySQL can switch without code changes.
启动资金：$2.1 million seed round announced on 12 July 2011.
起因
MemSQL was a Y Combinator Winter 2011 company founded by Eric Frenkiel (formerly Facebook) and Nikita Shamgunov (six years as a senior database engineer at Microsoft), surrounded by engineers from Facebook, Oracle and SQL Server backgrounds. Frenkiel's thesis was that datasets at major web companies were doubling every 18 months, cloud I/O was sluggish, and memory had become cheap and abundant enough for large data sets to live in RAM — Google, Facebook, Twitter and Zynga already kept their datasets in memory backed up on disk. He sized the online transaction processing software market as growing from $20 billion to $60 billion over five years.
经过
MemSQL raised $2.1 million in seed funding, announced on 12 July 2011, from First Round Capital, New Enterprise Associates, Start Fund, SV Angel and Y Combinator, joined by Ashton Kutcher, Paul Buchheit, Sam Altman, Guy Oseary and others. The six-person team planned to use the money to complete a move into new offices in downtown San Francisco and to hire. MemSQL's first customer was fellow YC Winter 2011 startup LikeALittle, which had hit 20 million pageviews within six weeks of launch and, per TechCrunch, relied on MemSQL's technology to keep performing through the influx of traffic.
结果
By 12 July 2011 the seed round was closed, MemSQL was running a private beta with LikeALittle as a live reference customer, and the six-person company was hiring as it moved offices — the in-memory-SQL bet had passed its first commercial test.
背景
MemSQL是一家内存数据库初创公司，出自Y Combinator 2011冬季班。联合创始人Eric Frenkiel和Nikita Shamgunov分别来自Facebook和微软SQL Server工程团队，他们的核心论点很简单：网络规模的数据集每18个月翻一番，而磁盘和云I/O依然缓慢，因此数据库应放在内存中。
产品押注谨慎地侧重于兼容性。MemSQL没有强迫用户转向NoSQL或缓存层，而是从头构建，直接支持MySQL协议，同时保留SQL和ACID语义，声称比磁盘关系数据库快最多30倍——且对已使用MySQL的应用无需改动代码。
2011年7月12日，这家六人公司宣布获得210万美元种子轮融资，投资方包括First Round Capital、NEA、Start Fund、SV Angel和Y Combinator，参与投资的还有Ashton Kutcher、Paul Buchheit、Sam Altman和Guy Oseary。资金计划用于旧金山市中心的新办公室和招聘。
MemSQL的首个客户是同为YC 2011冬季班的LikeALittle，该公司上线六周内页面浏览量达到2000万次，据报道估值达3500万美元。TechCrunch认为MemSQL技术帮助其扩展以应对流量。快速增长的同侪付费使用该引擎，为销售故事播下了种子。
这件事要成立，得有什么
- Frenkiel和Shamgunov在现有玩家的协议上直接进攻：保持MySQL兼容意味着应用无需重写，消除了大多数基础设施产品被拒绝的切换成本。
- 内存成本的趋势提供了明确的时间窗口——RAM足够便宜以容纳实时数据集，网络巨头们早已将数据保存在内存中并以磁盘备份。
- 团队的数据库背景使从零构建引擎对投资者具备可信度：微软SQL Server工程师（拥有博士学位和专利）加上前Facebook和Oracle工程师。
- 实际参考客户LikeALittle六周内获得2000万页面浏览量，展示了性能声明在实际流量下而非基准测试下的可靠性。
可借鉴之处
性能产品靠兼容性取胜，而非仅靠速度：MemSQL以零代码修改吸引MySQL应用，从而消除了基础设施切换时的迁移成本。
后续进展
截至2011年7月12日，MemSQL是一个六人初创公司，处于私人测试阶段，计划用210万美元种子资金完成旧金山市中心办公室的搬迁和人才招聘。公司邀请用户在其主页获取测试版，其公开证明点是LikeALittle在MemSQL技术上处理高流量。关于内存SQL更广泛前景的结论仍在未来。
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