Take the tribe to the third stage: The advantage of Python in big data processing

The kick tribe is a service group that provides the core developers with in-depth technical exchanges, solutions to development needs, and resource sharing. Based on this community, we have invited industry technology players to make a one-to-one breakthrough in the development needs and to unlock obstacles in the development process. Solve development challenges for developers with the most professional and efficient answers.

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Python

topic Keywords : Database Android

Tribal lineup : Hou Sang, the co-founder of the Institute of Mohism;

Object-oriented : Mobile developers, IT operations, data analysts

participation : Join 51CTO developer QQ Exchange Group 370892523, have any technical problems, ask questions in the group, or send to the group master Xiao Guan.

Event Details :

Q: Zhengzhou-poplar-web: is there a business in use SQL2008 now? or with Oracle?

The school next year has a batch of new systems, currently in the tender consideration of party A's plan. Involved in business has a card, new and old students data, residential management, financial and so on. Data I/O is more frequent. Because we currently use Oracle in our Central Library, the leader asks for the data db direction to determine which database ensures that there will be no significant generational differences over the next few years, based on a school-wide data grooming and framework. At present the company gives the demonstration is also using Oracle after all, and the current database can be linked, business process is generally in-school transfer requirements can accept at least 20,000 people data throughput. Additions and deletions to the daily financial, consumption, student information, performance and so on.

A : Hou Sang | The co-founder of the institute: if it's not bad, just use Oracle all the time. There is no problem with scaling later. If the money, with good MySQL is OK. Some newsql technologies are mature and easy to migrate directly. Schools generally do not have big data platforms.

Q: Guangzhou-Diching dq-php: weak weak Ask Python is it possible to do big data processing? What are the advantages and disadvantages? As far as I know, Python cannot run multicore, execution is inefficient, and there may be big problems.

A: BEIJING-Cao Hongwei-dabbler full stack craftsman:

Python Now I think is the best choice to deal with big data. It can be used both for research and for product development. Python has many benefits, close to pseudo-code, and data analysts and engineers can use it for easy communication.

Q: Chongqing-zee-Terminal:

What are some of the ways we can analyze user habits, such as the video business, to help improve the user experience? There is a live broadcast on demand.

Answer: Haddadichen:

user portrait is to "tag" the user. User portrait can be divided into static tags, dynamic tags. A static tag is an indicator that is rarely updated or is an almost constant indicator, such as a user's personal information. Dynamic labeling is the user's behavior tag, such as the favorite category of the live station. Through the user behavior log and the trade data to hit the label, some websites/app only a small amount of user personal information, but through the point can get a large number of user behavior log, we can predict the user's gender, age, city type, type of work and so on by cluster analysis. Some of the comparison of the live station has the characteristics of the tag: favorite host, accustomed to the online time, check-in users and so on.

Q: Hunan-Valves Width-operation dimension:

Ultra-multi-user dense (large conference room) Wireless WiFi AP, is more than 300 people in the conference room ap,300 people to attend the conference, while wireless WiFi internet, mobile phones, tablets, notebooks at the same time even WiFi, in a large conference room.

The problem is that each AP can only have 20~30 users, and the number of APS installed, the channel is not enough. There are no more than 20 users in a normal AP. The best requirement is that all APs have the same SSID and the same password

A : Mo mo Operation Dimension: This scene is more common, there are two schemes, one is the use of special high density AP, the other is the use of ordinary AP paired with a semi-directional antenna, tuning. With the SSID, with the password is can be done, this is relatively easy.

Ruijie : Ruijie rg-ap520 This router can support.

Q: BEIJING-Android-Yangyang:

about the use of WebView controls. How do I use WebView to be compatible with different versions of Android?

different Android versions, WebView controls are not the same, I want to run the H5 app in WebView.

Answer: 51CTO:

This is too general, compatible with a lot of aspects, and say that the Android application how compatible is the same. See specific problems specific analysis. All asked, can only be said to see other people's browser source.

Q: BEIJING-Song Junjun-android Development:

packing problem, I have an Android SDK, I need to split the SDK into multiple ANR, there are some common module, now it is open confusion, common will be confused first, and then rely on its function package will not find the class, I have a lot of module, But some module external to be confused, but in the internal to be referenced by other module, or so, I have a lot of module, these module to become 1 SDK, the call between each other is not confusing, after packaging, only the individual not mixed.

Answer: 51CTO:

you can understand that the next Flavor,gradle can be configured with multiple flavor, each flavor can be configured separately, internally and externally as a flavor, and multi-engine dependency is done with this.

Q: Jiangsu-Untitled-Rookie:

one Linux server pulls text data from another Linux server, how does the script write? Write script timed execution?

Answer: Guangzhou-Little Star-php:

Linux has a crontab script, Java's timer,or other program language-based timers, c implementation of a separate timer also has.

Q: Guangzhou-Mr. Peng:

who has small program video tutorial for sharing

Answer: Nanjing-android-Li 33:

I happen to also study, share to Baidu network disk,Click here >>

Do you still have questions about these solutions? Welcome to add 51CTO Developer QQ Exchange Group 370892523 discussion.

Upcoming Events: February 28

Keywords: development tools, App Publishing

Event Review: Kick Tribe First phase: Spark Offline analysis Dimension

Kicking Tribe Phase II: Application and practice of big data in medical field

Take the tribe to the third stage: The advantage of Python in big data processing