Mysql Week

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MySQL second loss

Despite being caught by Oracle, the controversy on MySQL never stopped; today, MySQL is still the most popular open source database on the market. Simple, free, extensible, relatively mature and so has always been the attraction of MySQL, but it is like a rabbit in a tortoise and hare race, because of its own advantages, to slacken, slowing down their own pace, so that each competitor Have the opportunity to catch up, these killer features are no longer attractive (or even reduced to the disadvantaged). Although PostgreSQL has always been the direct competitor of MySQL, ...

Summary of MySQL database optimization method

Intermediary transaction SEO diagnose Taobao guest Cloud host technology Lobby database optimization is a very complex task, because it ultimately requires a good understanding of system optimization.   Even though the system or application system does not know much about the optimization effect is good, but if you want to optimize the effect of better, then you need to know more about it. 1, the optimization of the system to run faster the most important factor is the basic design of the database.   And you have to be aware of what your system is going to do, and the bottlenecks that exist. The most common system bottlenecks are as follows: ...

MySQL server query slow reason analysis and solution

In the development of friends especially and MySQL have contact friends will encounter sometimes MySQL query is very slow, of course, I refer to the large amount of data millions level, not dozens of, the following we take a look at the resolution of the query slow way. -Often find developers looking up statements that are not indexed or limit n, which can have a significant impact on the database, such as a large table of tens of millions of records to scan all, or do filesort, and the database and server IO impact. This is the case above the mirrored library. And ...

mysql date and time and conversion time stamp function

The formula for converting timestamps using execl is: Code: = (xxxxxxxxxx + 8 * 3600) / 86400 + 70 * 365 + 19 Explain the timestamp syntax using mysql tutorial statements Example: select from_unixtime (1234567890, '% y-% m -% d% h:% i:% s') Attached: In mysql, a time field storage type is int (11), how to convert into a type of character, such as store as 13270655222, ...

Reasonable allocation of MySQL cache to improve cache hit rate

It is well known that the system reads data from memory hundreds of times times faster than it does from the hard disk. So now most of the application system, will maximize the use of caching (in memory, a storage area) to improve the system's operational efficiency. MySQL database is no exception.   Here, the author will combine their own work experience, with you to explore the MySQL database Cache management skills: How to properly configure the MySQL database cache, improve cache hit rate.   When will the application get the data from the cache? Database read from server ...

A week of hot spots: robotic creatures have been unveiled with only a few "brains"

In the blink of an eye again to Friday, we have wood feel this week than the week before the holiday a lot faster? Whether you have wood or not, I feel it anyway. The main content of this week: Harvard University has successfully developed the world's first machine bee, Cloudstack founder Liang: Let the Chinese software to the world, Twitter post-PC era of the Internet "agile" development of the road to explore; As a conscience enterprise, Facebook will open an open-source switch , EMC set off the first SDN landing, Dropbox will host the biggest developer ever ...

Cloud Computing Week Jevin Review (4.9-4.14)

Large Data Practitioner Market status: A huge gap in pay growth in the big data age, businesses are fighting to attract and retain professionals in business intelligence and information management. Large data workers face a huge gap in the payroll survey of IT employees published every year in InformationWeek. Today's large data presents a "4V + 1C" feature. Produced: generally includes the structure, the semi-structured and the unstructured and so on many kinds of data, and they processing and the analysis way has the difference; Volume: through various ...

SHARESDK announced last week that the team will enable mob.com domain names

Absrtact: The surge in mobile application development has also boomed the start-up companies that provide the underlying basic services for app developers. At present, providing transition water delivery services to developers, including but not limited to: The Alliance provides back-office data Statistical Analysis Services, provides mobile advertising platform mobile application development tide, but also prospered for the app developers to provide the underlying basic services to the start-up companies. At present, to provide developers with transition water delivery services, including but not limited to: the provision of back-Office data statistical Analysis Services, the Alliance to provide mobile advertising platform services of the Alliance, to provide a push service ...

Business Week: Facebook may be embroiled in a new round of patent wars

Lead: The latest issue of the print edition of the US Business Week says that while the current intensifying technology patent war has yet to spill over to emerging internet companies such as Facebook and Twitter, this may change. The following is the full text of the article: conflict reappearance Paul Marritz (Paul Maritz) witnessed many patent conflicts. The VMware CEO worked for 14 years at Microsoft, mainly in the 90 's. At that time, the company is rapidly expanding its dominance and forming a legacy technology giant ...

Pinterest on combat experience: how to achieve a zero to tens of billions of monthly visit in two years

Pinterest has maintained an exponential growth that will be doubled every 1.5 months. In two years, they achieved PV from 0 to tens of billions of, from the beginning of the two founder plus an engineer to now more than 40 engineers, from a small MySQL server to 180 web Enigne, 240 API Enigne, 88 MySQL DB (Cc2.8xlarge, each DB will be configured with a slave node), 110 Redis instance and 200 Mmecach ...

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