flink real-time data warehouse
Common sense of e-commerce Since this project is based on e-commerce data, here is a simple popularization of some commo...
Hive common functions, window functions, UDF, UDTF
1. System built-in function View the functions provided by the systemhive> show functions; Displays the usage of the...
KUBERNETES02_ Cluster installation logic, front-end environment, setting up one master and two slaves, and deploying dashboard access page
① . cluster installation logic ① We need to install kubelet (equivalent to the factory director), kubedm (to help progra...
hiveSQL execution plan (explain the most detailed in the whole network!!)
0 - Preface Hive SQL's execution plan describes the overall outline of the actual execution of SQL. Through the executio...
Day4 - branch and loop summary
Today's talk includes if multi branch structure, ternary operator, for loop, while loop, continue and break.
...
Business data collection_ Zero drift processing method (Flume+Kafka+HDFS)
I am a non college student. I can find a big data post after graduation. Although I major in big data, I basically rely ...
Basic concepts and installation of hive learning
Basic concepts and installation of hive learning
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MySQL Timed Backup Database
In the process of data operation, data errors may occur, even the database may run into disruption. Effective timed back...
Hive series - 5. Hive's data compression and data storage format
Copyright notice: This article is the original article of the blogger and follows the CC 4.0 BY-SA copyright agreement. ...
Flink streaming API
5. Flink streaming API Implicit transformation in Scala programming import org.apache.flink.streaming.api.scala._ impo...
Building recommendation system based on collaborative filtering of users
1. Overview
Before that, I introduced how to ...
Kafka Quick Start-RdKafka Source Analysis
Kafka Quick Start (11) - RdKafka Source Analysis
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ORACLE EMCC 12.1.0.5 installation configuration
1. Linux 6 + emcc12.1.0.5 installation environment introduction
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Oracle RAC 12.2.0.1 Patch 30920127(Apr 2020)
Oracle RAC 12.2.0.1 Patch 30920127(Apr 2020)
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Kafka Core API Producer
Producer sends demos asynchronously stay Above The use of the AdminClient API was introduced, and now we know how to man...
Failure handling of Oracle database startup report ORA-00600 [kkdlcob-objn-exists]
*Author's introduction*****Original Creator: Lose SeriouslyContact number: 18081072613WeChat, QQ:18081072613Reprint to i...
Analysis of Hadoop YARN ResourceManager crash caused by data limit of ZooKeeper node
This problem makes us encounter again. It happens infrequently, but once it happens, it will cause resource manager serv...
Python notes: drawing nine visual graphics with Pyecharts
First install the module
conda install pyecharts perhaps ...
scala and java mixed development package
How to package the mixed development of scala and java?
F...
Hadoop High Availability Environment Setup (QJM)
1. Virtual Machine Configuration host name NN DN ZK ZKFC JNN RM NM node1 * * * * node2 * * * * * * * node3 ...
Flink's common Source and sink operations in stream processing
The source of flink on stream processing is basically the same as that on batch processing. There are four categories C...
Java learning note 52 (network programming: UDP protocol case)
InetAddress class:
Represents the IP address in the Inter...
Android development 5: the principle of anonymous shared memory
Before reading, let's think about a question first. In Android system, how does the data of APP View deliver the Surface...
Slow code Python? Hands on how to speed up your code by 30%
Yun Qi Hao: https://yqh.aliyun.comThe first-hand cloud information, the selected cloud enterprise case base of different industries, and the best prac...
The first lesson of big data on the cloud: MaxCompute authorization and appearance operation hidden pit Guide
1, Sub account creation, AK information binding If you are the first time to log in to digital plus platform and use DataWorks with a sub account, you...
Flink asynchronous contradiction - sharp Async I/O
Dimension table JOIN - a business scenario that cannot be bypassed In the process of Flink flow processing, it is often necessary to interact with ext...