Skydiver Felix Baumgartner breaks sound barrier

"Let me tell you - when I was standing there on top of the world, you become so humble. You don't think about breaking records anymore, you don't think about gaining scientific data - the only thing that you want is to come back alive" .

    -- Felix Baumgartner

Skydiver Felix Baumgartner breaks sound barrier

By Jonathan Amos Science correspondent

Highlights from Felix Baumgartner's leap into the record books

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Austrian Felix Baumgartner has become the first skydiver to go faster than the speed of sound, reaching a maximum velocity of 833.9mph (1,342km/h).

In jumping out of a balloon 128,100ft (24 miles; 39km) above New Mexico, the 43-year-old also smashed the record for the highest ever freefall.
He said he almost aborted the dive because his helmet visor fogged up.

Footage from a camera on Baumgartner's chest shows out-of-control spin

It took just under 10 minutes for him to descend. Only the last few thousand feet were negotiated by parachute.
Once down, he fell to his knees and raised his fists in triumph. Helicopter recovery teams were on hand moments later.
"Let me tell you - when I was standing there on top of the world, you become so humble. You don't think about breaking records anymore, you don't think about gaining scientific data - the only thing that you want is to come back alive," he said afterwards at a media conference.
None of the new marks set by Baumgartner can be classed as "official" until endorsed by the Federation Aeronautique Internationale (FAI).

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The jump in numbers

• Exit altitude: 128,100ft; 39,045m
• Total jump duration: 9'03"
• Freefall time: 4'20"
• Freefall distance 119,846ft; 36,529m
• Max velocity: 833.9mph; 1,342.8km/h; Mach 1.24

Its representative was the first to greet the skydiver on the ground. GPS data recorded on to a microcard in the Austrian's chest pack will form the basis for the height and speed claims that are made.

These will be submitted formally through the Aerosport Club of Austria for certification.
There was concern early in the dive that Baumgartner was in trouble. He was supposed to get himself into a delta position - head down, arms swept back - as soon as possible after leaving his capsule. But the video showed him tumbling over and over.
Eventually, however, he was able to use his great experience, from more than 2,500 career dives, to correct his fall and get into a stable configuration.

Even before this drama, it was thought the mission might have to be called off. As he went through last-minute checks inside the capsule, it was found that a heater for his visor was not working. This meant the visor fogged up as he exhaled.
"This is very serious, Joe," he told retired US Air Force Col Joe Kittinger, whose records he was attempting to break, and who was acting as his radio link in mission control at Roswell airport.
The team took a calculated risk to proceed after understanding why the problem existed.
Baumgartner's efforts have finally toppled records that have stood for more than 50 years.
Kittinger set his marks for the highest, farthest, and longest freefall when he leapt from a helium envelope in 1960. His altitude was 102,800ft (31km). (His record for the longest freefall remains intact - he fell for more than four and a half minutes before deploying his chute; Baumgartner was in freefall for four minutes and 20 seconds).
Kittinger, now an octogenarian, has been an integral part of Baumgartner's team, and has provided the Austrian with advice and encouragement whenever the younger man has doubted his ability to complete such a daring venture.
"Felix did a great job and it was a great honour to work with this brave guy," the elder man said.
The 43-year-old adventurer - best known for leaping off skyscrapers - first discussed seriously the possibility of beating Kittinger's records in 2005.
Since then, he has had to battle technical and budgetary challenges to make it happen.
What he was proposing was extremely dangerous, even for a man used to those skyscraper stunts.

The Austrian first began to discuss seriously the idea of a record breaking jump in 2005

At Sunday's jump altitude, the air pressure is less than 2% of what it is at sea level, and it is impossible to breathe without an oxygen supply.
Others who have tried to break the records have lost their lives in the process.
Baumgartner's team built him a special pressurised capsule to protect him on the way up, and for his descent he wore a next generation, full pressure suit made by the same company that prepares the flight suits of astronauts.
Although the jump had the appearance of another Baumgartner stunt, his team stressed its high scientific relevance.
The researchers on the Red Bull Stratos project say it has already provided invaluable data for the development of high-performance, high-altitude parachute systems, and that the lessons learned will inform the development of new ideas for emergency evacuation from vehicles, such as spacecraft, passing through the stratosphere.
Nasa and its spacecraft manufacturers have asked to be kept informed.

Kittinger (L) was the only person Baumgartner wanted to hear on the radio during the mission

"Part of this programme was to show high-altitude egress, passing through Mach and a successful re-entry back [to subsonic speed], because our belief scientifically is that's going to benefit future private space programmes or high-altitude pilots; and Felix proved that today," said Art Thompson, the team principal.
In getting to 128,100ft, Baumgartner exceeded the altitude for the highest ever manned balloon flight achieved by Victor Prather and Malcolm Ross, who ascended to 113,720ft (35km) in 1961.
However, the FAI rules, state that to claim an official ballooning record, a balloonist must also bring the envelope down and therefore the Austrian's altitude will forever remain just an unofficial mark.
A BBC/National Geographic documentary is being made about the project. This will probably air first in the UK and in the US in November, and in other territories sometime soon after.

The giant helium balloon carrying Baumgartner's capsule was released early morning local time in Roswell

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纸质地图之死：请珍惜迷路的感觉

Why modern maps put everyone at the centre of the world

http://www.bbc.co.uk/news/magazine-19908848

With new GPS technology, it is almost impossible to get lost nowadays. So how will the death of paper maps change the way we live, asks Simon Garfield.

Got truly and outstandingly lost recently? Enjoy the feeling while you can, for it's becoming an increasingly difficult task.
As a curious race we have always liked to know where we are, but it is now almost impossible not to know - our phones, computers and sat navs keep us continually co-ordinated, and through them we are involuntarily tracked ourselves. Once the preserve and privilege of the rich and influential, maps and accurate wayfinding have suddenly come to feel like a birthright, to the point where if things don't meet our expectations (good afternoon Apple Maps), we feel worse than deprived, we feel truly disorientated.

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About the author

Simon Garfield is a journalist and author of On The Map: Why the World Looks The Way It Does

It is now hard for most people aged below 25 to remember a time when we used maps that folded (or at least maps that came folded from a shop, and never folded quite so well again). And it is a sobering thought that our most influential maps are now in the hands of a very new breed of cartographers.

These are not people traditionally charged with representing our landscape with carefully plotted co-ordinates and contours, and with recognisable symbols and important landmarks. The new maps are gridded by technicians and pixel masters, who may be more concerned with screen-loading speeds than the absence on a map of certain parts of, say, Manchester or Chicago.
There is already a visible backlash. Organisations such as OpenStreetMap enable us all to become new wiki-style digital cartographers by adding areas of specific or local knowledge to a global map. And the internet is alive with sign of a renewed and vibrant passion for hand-drawn maps, offering a personal and often humorous view of our lives beyond the corporate uniformity of the big mapping companies.
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Ptolemy's world map dates from about 150. Ptolemy was a Greek-Roman astronomer and geographer, who established the use of longitude and latitude lines. This is a 1513 reproduction of his projections.

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1/5

But these days we are all really at the centre of our maps, which is both a useful and egocentric thing. A thousand years ago Jerusalem stood at the centre of the Christian world view, or if you lived in China it was Youzhou. But now it is us, a throbbing green dot on our handhelds. We no longer travel from A to B but from Me to B, and we spread out maps on the floor or on our laps in a car only with wistful nostalgia.

It is quite possible to walk, phones in our palms, from one end of a city to another without looking up. The loss is historical, social and monumental (as one inspired tweeter observed, I wouldn't change my Apple Maps for all the tea in Cuba). In our cars, GPS may guide us quite merrily from one country to another, and we may arrive at our destination without any idea of how we got there. En route from London to Cornwall, drivers may listen to a radio documentary about Stonehenge without realising that they have passed it on the right, for it is not on the sat nav. We now tend to look just a few yards ahead, which is a shorter distance than our ancestors used to gaze when they lived in caves.

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Back in vogue

Antique maps have enjoyed a steady rise in popularity, particularly over past five years, says map dealer Peter Stuchlik, of the Map House.
"People are becoming conscious of importance, rarity, beauty and relative good value in the antiques market," says Stuchlik.
"Demand is going up in the countries with an emerging class of wealthy people who have an interest in their own culture and history - such as Russia and China."

• The Map House

There is another problem - digital maps may be shrinking our brains. Richard Dawkins has suggested that it may have been the drawing of maps, rather than the development of language, that boosted our brains over that critical hurdle that other apes failed to jump. Over the centuries, maps have always provided a key contribution and guide towards what makes us human, and they continue to record and realign our history.

It is still too early to say whether a lessening in our spatial ability and perspective, and our ability to remember landmarks, will decrease that area in our hippocampus that serves as the engine room for such skills, but it is highly likely. An examination of the brains of cab drivers has shown a great expansion in that area due, it is thought, to the retention of many miles of street plans.
Our lives have changed almost beyond recognition in the digital universe, but the most significant change - that of tracking our path through this world and being tracked by others - has come upon us stealthily and irrevocably. And these are extremely early days. My fellow cartographic historian Jerry Brotton recently observed that digital maps were at "the dot-matrix printer stage", which is to say early, buggy and unfocused.

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Hand-drawn maps of London

Londonist, an online magazine, has asked contributors to map the city in creative ways. Submissions include, clockwise from top left:

• A walk, designed by Becky Jones and Clare Lewis, based on 101 Dalmations. Map by Frances Bennett
• David Ryan Robinson's densely packed representation of central London
• Paula Simoes' useful map of London loos
• A hand-cut image of London by Amelia Staines showing specific features of the city

• Maps courtesy of Londonist

There is no doubt that the range, accuracy and personalised nature of digital mapping will increase, and that mapping companies will become even integral to our lives. Maps and location are arguably the most crucial elements of all new digital devices, and the principal driver of this advance will continue to be commerce.

Google Maps headquarters is located in the idyllic-sounding Mountain View, California, but when I visited to discuss the future of mapping I was ushered into a windowless conference room named after a famous explorer. Then I realised that all the rooms were named similarly, and that the company had commissioned a jokey wooden signpost to help employees navigate their way around.
The signpost, just a few years old, was chipped at the edges to make it look as if it was something Davy Crockett may have used, and the names carved upon it encapsulated the heroic human endeavour necessary to chart the world before satellites made this task obsolete. Marco Polo was on there, as was Sir Francis Drake, Vasco da Gama, Magellan, Lewis and Clark and Shackleton. It was a handsome sign, and a neat idea, but above all it was a vindication: Google was in charge now, directing its all-powerful employers to rooms where they would, in turn, direct the rest of us around the rest of the world.

Big Rip / Big Crunch / Big Chill

Supernova

John Hendrix

The letter to God

...I read a great deal in the last days of your book, and thank you very much for sending it to me. What especially struck me about it was this. With regard to the factual attitude to life and to the human community we have a great deal in common.
... The word God is for me nothing more than the expression and product of human weaknesses, the Bible a collection of honorable, but still primitive legends which are nevertheless pretty childish. No interpretation no matter how subtle can (for me) change this. These subtilised interpretations are highly manifold according to their nature and have almost nothing to do with the original text. For me the Jewish religion like all other religions is an incarnation of the most childish superstitions. And the Jewish people to whom I gladly belong and with whose mentality I have a deep affinity have no different quality for me than all other people. As far as my experience goes, they are also no better than other human groups, although they are protected from the worst cancers by a lack of power. Otherwise I cannot see anything 'chosen' about them.
In general I find it painful that you claim a privileged position and try to defend it by two walls of pride, an external one as a man and an internal one as a Jew. As a man you claim, so to speak, a dispensation from causality otherwise accepted, as a Jew the privilege of monotheism. But a limited causality is no longer a causality at all, as our wonderful Spinoza recognized with all incision, probably as the first one. And the animistic interpretations of the religions of nature are in principle not annulled by monopolization. With such walls we can only attain a certain self-deception, but our moral efforts are not furthered by them. On the contrary.
Now that I have quite openly stated our differences in intellectual convictions it is still clear to me that we are quite close to each other in essential things, i.e; in our evaluations of human behavior. What separates us are only intellectual 'props' and 'rationalization' in Freud's language. Therefore I think that we would understand each other quite well if we talked about concrete things.

With friendly thanks and best wishes,
Yours, A. Einstein

Data From NASA's Voyager 1 Point to Interstellar Future

Data From NASA's Voyager 1 Point to Interstellar Future

06.14.12

This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath, the outer shell of the bubble of charged particles around our sun. Image credit: NASA/JPL-Caltech
› Full image and caption

Artist concept of NASA's Voyager spacecraft. Image credit: NASA/JPL-Caltech
› Larger view Data from NASA's Voyager 1 spacecraft indicate that the venerable deep-space explorer has encountered a region in space where the intensity of charged particles from beyond our solar system has markedly increased. Voyager scientists looking at this rapid rise draw closer to an inevitable but historic conclusion – that humanity's first emissary to interstellar space is on the edge of our solar system.
"The laws of physics say that someday Voyager will become the first human-made object to enter interstellar space, but we still do not know exactly when that someday will be," said Ed Stone, Voyager project scientist at the California Institute of Technology in Pasadena. "The latest data indicate that we are clearly in a new region where things are changing more quickly. It is very exciting. We are approaching the solar system's frontier."
The data making the 16-hour-38 minute, 11.1-billion-mile (17.8-billion-kilometer), journey from Voyager 1 to antennas of NASA's Deep Space Network on Earth detail the number of charged particles measured by the two High Energy telescopes aboard the 34-year-old spacecraft. These energetic particles were generated when stars in our cosmic neighborhood went supernova.
"From January 2009 to January 2012, there had been a gradual increase of about 25 percent in the amount of galactic cosmic rays Voyager was encountering," said Stone. "More recently, we have seen very rapid escalation in that part of the energy spectrum. Beginning on May 7, the cosmic ray hits have increased five percent in a week and nine percent in a month."
This marked increase is one of a triad of data sets which need to make significant swings of the needle to indicate a new era in space exploration. The second important measure from the spacecraft's two telescopes is the intensity of energetic particles generated inside the heliosphere, the bubble of charged particles the sun blows around itself. While there has been a slow decline in the measurements of these energetic particles, they have not dropped off precipitously, which could be expected when Voyager breaks through the solar boundary.
The final data set that Voyager scientists believe will reveal a major change is the measurement in the direction of the magnetic field lines surrounding the spacecraft. While Voyager is still within the heliosphere, these field lines run east-west. When it passes into interstellar space, the team expects Voyager will find that the magnetic field lines orient in a more north-south direction. Such analysis will take weeks, and the Voyager team is currently crunching the numbers of its latest data set.
"When the Voyagers launched in 1977, the space age was all of 20 years old," said Stone. "Many of us on the team dreamed of reaching interstellar space, but we really had no way of knowing how long a journey it would be -- or if these two vehicles that we invested so much time and energy in would operate long enough to reach it.”
Launched in 1977, Voyager 1 and 2 are in good health. Voyager 2 is more than 9.1 billion miles (14.7 billion kilometers) away from the sun. Both are operating as part of the Voyager Interstellar Mission, an extended mission to explore the solar system outside the neighborhood of the outer planets and beyond. NASA's Voyagers are the two most distant active representatives of humanity and its desire to explore.
The Voyager spacecraft were built by NASA's Jet Propulsion Laboratory in Pasadena, Calif., which continues to operate both. JPL is a division of the California Institute of Technology. The Voyager missions are a part of the NASA Heliophysics System Observatory, sponsored by the Heliophysics Division of the Science Mission Directorate in Washington.
More information about Voyager is available at: http://www.nasa.gov/voyager and http://voyager.jpl.nasa.gov .

DC Agle 818-393-9011
Jet Propulsion Laboratory, Pasadena, Calif.
agle@jpl.nasa.gov

Dwayne Brown 202-358-1726
NASA Headquarters, Washington
Dwayne.c.brown@nasa.gov

2012-177

阿里巴巴集团去IOE运动的思考与总结

出处:豆瓣 

 

阿里巴巴集团内部所有子公司去IOE运动将继续深化，就淘宝、阿里巴巴和支付宝去IOE事件，以局外人的角度进行利弊分析，希望能达到给明白真相和不明白真相的群众一个合情合理中立的分析。

预计2012年5月7日，阿里巴巴集团将正式公布技术团队合并的事情，涉及的部门：阿里巴巴运维团队、阿里巴巴 DBA团队、阿里巴巴平台技术部、大淘宝运维团队、大淘宝DBA团队、大淘宝核心系统部、阿里云计算运维团队、阿里云计算DBA团队和阿里巴巴集团安全团 队，上述技术团队合并之后，从一些可以猜测到的信息分析，大淘宝的员工成为相关技术团队的掌舵者，以及去IOE政治运动是阿里巴巴集团首席架构师某博士主 导的，阿里巴巴和淘宝的技术团队内部非常有影响力的XX负责执行，那么阿里巴巴集团内部所有子公司去IOE运动将继续深化，就淘宝、阿里巴巴和支付宝去 IOE事件，以局外人的角度进行利弊分析，希望能达到给明白真相和不明白真相的群众一个合情合理中立的分析。

淘宝和阿里巴巴去Oracle化事件引发数据库技术人员大讨论一文，只是把对阿里巴巴、淘宝等子公司内部非常熟悉的 人士观点和建议分别整理出来，以及还有部分外部人士的猜测和分析，本篇文章我们从几个不同的角度综合分析阐述去IOE事件对阿里巴巴、淘宝等公司的内部 DBA团队价值和意义，对阿里巴巴、淘宝等公司的业务和成本影响，对互联网行业的DBA从业者的影响……

(一) 去IOE事件中的IOE名词解释

(1).IOE事件中的I是代表IBM的缩写，也即去IBM的存储设备和小型机，主要是小型机，阿里巴巴、淘宝和支付宝主要是使用了IBM的小型机，IBM存储设备相对较少；

(2).IOE事件中的O是代表Oracle的缩写，也即去处Oracle数据库，采用MySQL和Hadoop替 代的解决方案，Oracle RAC将会被Hadoop集群替代，其阿里巴巴B2B使用的GreenPlum集群也将会在阿里巴巴集团完成运维团队和DBA团队合并之后，采用 Hadoop集群解决方案替代；

(3).IOE事件中的E是代表EMC2,阿里巴巴B2B、淘宝和支付宝都是用大量EMC2的存储设备，也有少量DELL的存储设备，主要是EMC2,的存储设备性价比非常高；

(4).阿里巴巴集团内部最早进行MySQL数据库替代Oracle数据库支持数据服务的子公司，是阿里巴巴B2B 用PC Server替代EMC2,存储设备，替代IBM小型机，替换节凑是被控制的，因多方面的原因内部也没有那么雄壮的决心。后续，淘宝也开始进行MySQL 数据库的应用摸索和推广，并且高调宣传去IOE事件，最后造成网络上满城风雨；

(二) 去IOE对淘宝、阿里巴巴B2B和支付宝等公司的价值

阿里巴巴集团与甲骨文公司购买的Oracle数据库是三年无限制的Licens，总销价是三年X千万人民币（备注： 不能告诉大家具体多少钱，属于商业机密，望理解！），这部分的开销对整个阿里巴巴集团而言并不算什么，花费最大地方是Oracle数据库的座驾，也即主要 是IBM小型机和EMC2,存储设备的购买费用和保修费用。

随着淘宝、支付宝和阿里巴巴B2B的注册用户数激增，用户产生的数据也越来越多，即使采用冷热隔离的方式也解决不了 大容量数据且大并发的难题，淘宝启用了全亚洲最大的Oracle RAC集群，阿里巴巴B2B中文站的数据量也因数据量大和业务要求，每年早上08:00—09:30之间CPU保持98%的使用率，LOAD也超高，即使 更换存储设备不久也会再次出现这样的状况。互联网行业公司迅速发展非常快，集中式数据库系统会逐渐成为业务的瓶颈，不得不面临又喜又忧的事情花费重金升级 硬件，这在企业高速崛起的时候，可能不太会在意成本，若是企业占有市场份额足够大、步入平稳发展阶段或企业资金出现问题的时候，就不得不考虑企业的成本， 那么就不得不考虑采用满足企业业务发展需求，企业只需要合理地投入资金，就不得不考虑更加省钱的数据库软硬件解决方案。

大淘宝、阿里巴巴B2B和支付宝等公司，98%以上的软件系统和业务都是采用Oracle数据库提供数据服务，电子 商务领域阿里巴巴集团旗下公司拥有的总数据量和用户量是其他任何公司无法比喻的，DBA团队面临的压力盒挑战也是其他公司无法比喻的，肯定要比联网其他公 司更早关注此方面的资金需求和业务双重压力。

阿里巴巴集团使用License最多的子公司是大淘宝，2010年及之前，还高调地要部署更多的Oracle RAC数据库集群，但是在阿里巴巴B2B将中文站压力和数据容量最大的Offer数据库，成功从Oracle数据库+IBM小型机+EMC2,存储设备, 迁移到MySQL数据库+PC Server的模式，以及大淘宝核心系统部门招聘到@淘宝褚霸、@淘宝丁奇等能修改MySQL源码和Hbase源码，其他产品线使用MySQL数据库提供 服务，也使大淘宝的MySQL DBA的经验和技术大幅提高，大淘宝也就有能力把产品线的Oracle数据库迁移到MySQL数据库提供服务，采用Oracle数据库支持的数据分析业务 则采用Hadoop集群替代，这是给核心系统部和DBA团队建功立业的大好时机，同时能解决大淘宝业务系统的压力和瓶颈，也能帮助大淘宝降低资金投入。搭 配开发完善的自动化系统，可以大大简化数据库的管理成本，也能减小DBA团队的工作量。

阿里巴巴、淘宝和支付宝都曾尝试，将Oracle数据库的座驾AIX系统+ IBM小型机+EMC2，迁移到Linux系统+PC Server的模式。若是对Oracle数据库不拆分的话，PC Server根本无法承受这样的负载；若是对Oracle数据库拆分，将需要增加购买大量的License；故不得不考虑将业务系统的Oracle数据库 迁移到开源MySQL数据库和Hadoop平台上（注释：这2种开源产品能满足业务需求，以及相对其他开源产品更稳定和成熟）。

非常遗憾的是，阿里巴巴集团首席架构师王坚推行的是全面去商业数据库产品计划，也即整个阿里巴巴集团，可能除支付宝 少数业务的数据库继续采用Oracle数据库之外，其他的一切都将转换成MySQL数据库，为此可能导致阿里巴巴DBA团队、大淘宝DBA团队、支付宝 DBA团队等，在Oracle数据库领域积攒十年的架构设计和运维维护经验，将瞬间付之东流，同时这些DBA团队的Oracle DBA也将会有不少人员选择离开，否则只能转行为MySQL DBA。

大淘宝DBA团队、阿里巴巴DBA团队、支付宝DBA团队和阿里云计算DBA团队总共拥有的MySQL DBA人数，不会超过15人，而Oracle DBA有80人以上，其中MySQL DBA团队真正能干活的DBA不会超过X个人，MySQL数据库在阿里巴巴真正支持业务发展的时间不超过3年（注释：淘宝成立初期采用MySQL数据库， 能力的问题而不得不迁移到Oracle数据库平台；阿里巴巴B2B在2009年之前，也是少数边缘业务从Oracle数据库迁移到MySQL数据库平 台）。多数是Oracle DBA转行为MySQL DBA的兄弟，他们在Oracle数据库方面确实经验丰富和能力超强，但是MySQL数据库方面就不多加评论…

小结：

一直为MySQL社区的发展与壮大而努力，作为技术人员要说真话和大实话，不能因个人感情而做事情。个人认为阿里巴 巴集团去IOE是不得不要做的事情，但不是把所有的Oracle数据库都迁移到MySQL数据库或Hadoop平台，而应该是对业务系统有选择地进行，以 及迁移的步调要合理地控制，不宜过快过急，需要等待MySQL数据库DBA团队的壮大，技术与经验的积累。否则，可能出现迁移过去之后不久，发现对业务发 展和支持出现严重的问题，大淘宝内部的信息分析，他们已经基本度过危险的阶段，也有很多遇难杂症，但是支付宝的业务具有特殊性，要比淘宝的业务系统要求更 高，恐怕是一个非常大的障碍。

阿里巴巴集团高调向外界传递去Oracle数据库信息之后，新的Oracle数据库License谈判将会很艰难， 甲骨文公司本来是把阿里巴巴、淘宝和支付宝等公司作为中国标杆用户，现在公开大规模地去Oracle数据库，可能会得到甲骨文公司的报复，为此可能要偿付 更加昂贵的License费用。对于阿里巴巴价值观“拥抱变化”，是无处不体现，但是要合理地使用，不要被某些人利用搞政治运动，而影响企业的稳定与发 展。

(三) 去IOE对淘宝、阿里巴巴B2B和支付宝等公司的DBA团队影响

大淘宝是去IOE最迅速最彻底的公司，相关技术人员也将会得到更多的晋升和加薪机会，阿里巴巴B2B DBA团队很早进行的部分业务系统去IOE，使得相关人员受益（注释：也包过我个人，阿里巴巴B2B对MySQL DBA的渴望而有机会加盟，机缘巧合是MySQL数据库成功使用之后离开了），而支付宝是去IOE进展最慢的公司，为此高层不得不选择派遣相关人员，加速 支付宝公司去IOE。

阿里巴巴集团最后可能保留少数业务产品线，继续使用Oracle数据库平台提供数据服务，以及MySQL数据库的自 动化完成之后，将导致阿里巴巴集团DBA团队出现资源严重富余，Oracle数据库迁移MySQL数据库过程与完成之后，将会出现DBA人员的流失，这对 阿里巴巴集权的DBA团队而言是一种损失，往往选择离开的Oracle DBA，越是优秀和有成长潜力的，可能早就更多DBA人员处于混日子的状态。

去IOE事件对MySQL团队和核心系统部门的发展，是非常有利和促进作用。越来越多的业务系统和核心系统，采用 MySQL数据库提供数据服务，MySQL DBA面临的挑战与压力将会越来越大，DBA团队的自动化水平能力也将会迅速得到提高，否则无法管理规模庞大的MySQL数据库集群和Hadoop集群。
整个阿里巴巴集团能读懂、编写和优化MySQL源码的DBA或开发人员，总数不会超过X个人，这对阿里巴巴集团去IOE也是一项挑战，毕竟开源数据库产品 没有商业数据库产品那样经过严格的测试流程而稳定，购买甲骨文官方提供的MySQL服务，绝对不是淘宝、阿里巴巴和支付宝DBA团队的行事风格，一定会想 办法自己修改和优化MySQL源码，相信阿里巴巴集团会投入更多的资源引进相关的技术人才，这对MySQL团队的技术提高也非常有帮助。

小结：

(1).Oracle团队的经验和技术积累将大量丢弃；

(2).Oracle团队的DBA流失不可避免；

(3).MySQL团队的DBA经验、技术和能力，将被迫加鞭快马提高；

(四) 去IOE对数据库行业的影响

淘宝去IOE事件网络曝光之后，引起更多Oracle数据库DBA从业人员的恐慌，使他们最担忧的是互联网行业的其他公司效仿淘宝和阿里巴巴去Oracle数据库的壮举，而出现蝴蝶效应。

对甲骨文公司而言，不会失去一位非常重要的中国客户，只是可能失去部分License费用收入而已。毕竟阿里巴巴集 团旗下的支付宝某些业务系统肯定会用Oracle数据库平台，至少阿里巴巴B2B的CRM系统短期内不得不考虑继续使用Oracle数据库平台（注 释：CRM系统太复杂，也很难有人搞清楚）。

淘宝、阿里巴巴和支付宝公司用MySQL数据库和Hadoop分布式平台，替换Oracle数据库和 Greenplum并行数据库的行为，不可避免会影响互联网行业企业的数据库平台选型，也会导致Oracle数据库行业的从业者担忧。唯一办法，就是澄清 这些事情的来龙去脉，使不明真相的群众懂得去分析类似的事情，而不跟风做错误的决定，不过互联网行业采用开源数据库的大趋势是必然的，互联网行业采用开源 技术解决方案也是必然发展趋势。

淘宝、阿里巴巴B2B和支付宝用MySQL数据库支持核心业务系统，其中阿里巴巴B2B已经使用MySQL数据库支 持中文站Offer数据库，淘宝的核心业务之一订单都是MySQL数据库提供数据服务，必将将会促使更多企业使用MySQL数据库，从而会促进MySQL 数据库领域的从业者发展和薪资待遇的提高，对MySQL社区和MySQL技术的进步也会有一定的促进作用。

MySQL数据库搭配PC Server和Linux操作系统的模式，以及再加上一些特殊的软件硬件技术–SSD硬盘和Fusion-IO, 尤其是经过淘宝、阿里巴巴B2B和支付宝等业务的洗礼之后，使MySQL数据库的解决方案丰富和成熟， 也会促使DELL、华为、惠普（注释：不过这家企业的硬件设备实在是太差，尤其售后服务）等公司大力发展PC Server业务。也会推动IBM、EMC等存储设备厂商进行技术革新，最后也会推动甲骨文公司和MySQL社区共同推动MySQL数据库产品支持更大的 数据存储容量和并发处理能力。

(五) 总结

淘宝、阿里巴巴B2B和支付宝等公司去Oracle数据库，改用MySQL数据库和Hadoop分布式平台支持数据 服务业务的分析和总结，就写到此了。希望个人写的本篇文章，对技术圈的朋友们有帮助，同时也做到了独立性和公正性透彻地分析去IOE运动。作为一位 MySQL数据库技术的从业者，要感谢淘宝高调公布去IOE，采用MySQL数据库搭配PC Server的方式支撑大并发大数据量的核心业务，为互联网行业的MySQL从业者提供了参考模板，也希望其能继续完善MySQL数据库平台和 Hadoop分布式平台的自动化解决方案，也能继续对外开放。最后一点，希望阿里巴巴集权推进这样的事情，是能保持雄心和壮志，继续把适合采用MySQL 开源数据库和Hadoop分布式平台支持的业务，莫出现反复的行为。