More commonly used in the work is to call and implement operations similar to HBase shell through HBase API.
IDEA + Maven + HBase
<?xml version="1.0" encoding="UTF-8"?>
Recently, the company is working on real-time flow processing. The specific requirements are: real-time import of relevant data tables in relational databases (MySQL, Oracle) into HBase, and use Hive mapping HBase for data query. The company uses the big data cluster built by CDH6.3.1~
1, Configure ...
Posted on Wed, 10 Jun 2020 00:55:16 -0400 by jcleary
1. Overview of how HBase is read and written
It is mainly divided into:
The way pure Java API s read and write HBase s;
How Spark reads and writes HBase s;
How Flink reads and writes HBase s;
HBase is read and written through Phoenix;
The first is the more original and efficient operation mode provided by HBase itself. The second and ...
Posted on Sat, 09 May 2020 23:05:48 -0400 by israfel
1. Write a program to write 10 million pieces of data into the Hbase table;
2. Map the corresponding Hbase table to Hive table. Execute the following command in Hive's shell
hive> CREATE EXTERNAL TABLE
IF NOT EXISTS t_hbase_person_his10(id string, NAME String, salary string,START_DATE string,END_DATE string)
Posted on Tue, 05 May 2020 00:24:07 -0400 by Hebbs
1. Get Ali Cloud ECS Server
2. Create Hadoop users(viii)
3. Configure SSH passwordless login
4. Install JDK
4.1 Method 1:_Manual installation (recommended)_)
4.1.2 Download Linux JDK8 on PC
4.1.3 Use WinSCP to upload compressed packag ...
Posted on Fri, 17 Apr 2020 02:57:09 -0400 by zgkhoo
Foreword: Everything must be done properly before it can be done properly. Today we will introduce the top ten HBase Shell fancy tools, which can be tried in daily operation and maintenance.
1. Interactive mode
This is the Shell command line that we use most often.
$ hbase shell
2. Non-interactive mode
Posted on Thu, 16 Apr 2020 21:54:53 -0400 by trube
Foreword: Some friends and friends have discussed some problems with me before, and I think these problems are very valuable. So I want to open a question and answer column in this public number to facilitate technical exchange and sharing. The column name is "Letter from Reader".If you encounter a problem that is difficult to solve b ...
Posted on Mon, 06 Apr 2020 23:53:14 -0400 by Formula
linux provides different functions for reading files, with the following references:
When a random read-write operation is performed on the same file handle (under Windows) or file descriptor (under Linux), there are two steps to locate and read/write the file pointer, but since this is not an atomic operation, ...
Posted on Sat, 04 Apr 2020 17:10:10 -0400 by MrAlaska
Before using HABSE, install a zookeeper
I used to write https://www.cnblogs.com/wpbing/p/11309761.html
Let's briefly introduce HBASE
HBASE is a database, which can provide real-time random reading and writing of data
He is a nosql database, which is not structured. He can only do some rough queries, such as the connection query between m ...
Posted on Mon, 23 Mar 2020 20:06:05 -0400 by jdbfitz
Personal Blog Visit http://www.x0100.top
Without the crawler framework, we tried to implement a distributed crawler system, and we could save the data in different places, such as MySQL, HBase, and so on.
This system is developed based on the Interface-oriented coding idea, so it has s ...
Posted on Mon, 09 Mar 2020 22:27:41 -0400 by zero_ZX