The previous article recorded the Shell operation and Java API operation of HBase, but the operation process is still cumbersome [track of HBase] (2) use HBase command and Java API to operate HBase (including complex query - filter and HBase tool class)
It would be nice if you could write SQL operation database like MySQL, and ...
Posted by clarket on Tue, 08 Mar 2022 06:42:16 +0100
Hello, my name is Mr. Foot (o^^o)
Recently, a little partner asked me, Foot, you have written so many Docker articles, most of them are theoretical knowledge, no practice. Grandpa said, "Practice is the only standard to test the truth". To hear Grandpa, I decided to take Docker out for a walk. Let's deploy the docker run first, then ...
Posted by krispykreme on Wed, 02 Mar 2022 18:35:19 +0100
Learning notes for Hbase (2)
In the learning notes (1) of Hbase, it mainly briefly states the theoretical knowledge related to Hbase. In the learning notes (2) of Hbase, we mainly learn the simple addition, deletion, modification and query commands of Hbase.
Basic shell command operation of Hbase
1. Enter the Hbase shell command line window ...
Posted by HoangLong on Thu, 24 Feb 2022 11:50:02 +0100
Python WeChat Subscription Applet Course Video
Python Actual Quantitative Transaction Finance System
https://edu.csdn.net/course/detail/35475 In the previous article, we have obtained the output stream of business data, which is the output stream of dim layer dimension data and the output stream of dw ...
Posted by apervizi on Mon, 21 Feb 2022 18:40:24 +0100
What is Phoenix
Phoenix is an open source SQL Engine Based on HBase. You can use standard JDBC API instead of HBase client API to create tables, insert data and query your HBase dataPhoenix is written entirely in Java as a JDBC Driver embedded in HBase. The Phoenix query engine converts the SQL query into one or more HBase scans and c ...
Posted by dotbands on Fri, 18 Feb 2022 01:36:03 +0100
Spark Day06: Spark Core
01 - [understand] - course content review
It mainly explains three aspects: Sogou log analysis, external data sources (HBase and MySQL) and shared variables.
1,Sogou Log analysis
Search based on the official log SparkCore(RDD)Business analysis
Text file data, and each data is the log data o ...
Posted by JamesThePanda on Mon, 14 Feb 2022 11:48:56 +0100
Mslab (memory local allocation buffer) of HBase
This paper briefly introduces the write cache MemStore and data structure of HBase, as well as the function and source code analysis of MSLAB, which is the main component of write cache. MSLAB is the abbreviation of MemStore local allocation buffer. It carries out reasonable planning ...
Posted by wheeler08 on Tue, 08 Feb 2022 18:41:18 +0100
In order to explore whether the ZGC feature of JDK15 is as good in HBase as rumored, I recompiled the community version of hbase-1.4.8 with AdoptOpenJDK15, then completed the fully distributed deployment and functional test of HBase after compilation, and shared the whole compilation process and solved problems one by one in the ...
Posted by aufkes on Wed, 19 Jan 2022 04:12:05 +0100
Real time is the future. Recently, we shared real-time computing services at Tencent cloud computing Oceanus (Flink)~Project backgroundThis paper introduces how to build a real-time data warehouse by combining MySQL database, stream computing Oceanus (Flink), HBase and cloud data warehouse ClickHouse, read MySQL data through stream computing Oc ...
Posted by irishmike2004 on Wed, 22 Dec 2021 19:17:55 +0100
1. Importtsv function description
Load text data in the format of tsv (or csv, each field in each row of data is separated by a separator) into the HBase table. 1) . load and import in Put mode 2) . bulk load and import are adopted Use the following command to view the instructions for the official HBase built-in tool class:
Posted by margarette_a on Wed, 15 Dec 2021 21:19:27 +0100