Hadoop Cluster Modification: Adjusting Cluster Version

Links to the original text: http://www.cnblogs.com/DamianZhou/p/4184026.html Catalog Hadoop Cluster Modification and Cluster Version Adjustment Modification Notes Detailed steps 1. JDK modification 2 ...

Posted on Wed, 17 Jul 2019 13:02:17 -0700 by pesoto74

A Cluster Load Scoring Method for HBase Load Balancing

HMater is responsible for homogenizing regions into each region server. One of the threaded tasks in the hmaster is dedicated to balancing and is executed every five minutes by default. Each load balancing operation can be divided into two steps: Generating Load Balancing Schedule Assignment Manager class execution schedule Let's go into ...

Posted on Sat, 13 Jul 2019 15:15:04 -0700 by phpnewbie8

Elastic search learning summary 6: using Observer to synchronize data from HBase to Elastic search

Recently, in the company's unified log collection and processing platform, the choice of technology must be elastic search, because it can quickly retrieve system logs, log problem checking and power business chain calls can be quickly retrieved. Some fields of the company's application logs, such as content, do not need to be stored in es. A ...

Posted on Mon, 24 Jun 2019 17:09:12 -0700 by Tr4mpldUndrfooT

Hbase operation table and Java API

Hbase List Use the list command to list all tables hbase(main):001:0 > list Listing tables using Java API What follows is the use Java API The program lists all HBase List of tables in the table. import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.hbase.HBaseConfiguration; import org.apach ...

Posted on Fri, 17 May 2019 16:29:48 -0700 by po

spark persistence and shared variables

1. Persistence operator cache Introduction: Normally, an RDD does not contain real data, but only contains metadata information describing the RDD. If the cache method is called on the RDD, then the data of the RDD still has no real data. Until the first call of an action operator triggers the data generation of the RDD, then the cache operati ...

Posted on Sun, 05 May 2019 01:32:37 -0700 by techker

Big Data Development Project-Telecom Project 2-Transmission Data

Article directory 1. Configuring flume files 2. Data Acquisition Part Gets Through 2.1 Start zookeeper and cluster 2.2 Start kafka cluster 2.3 Start flume Cluster 2.4 Production data 3 Data Consumption Environment Preparedness 3.1 Add maven configuration 3.2 Add maven configuration 4 Consumer Data Tools 4.1 PropertiesUti ...

Posted on Mon, 22 Apr 2019 18:06:34 -0700 by softnmedia

MacOS Installation Stand-alone HBase

MacOS installs HBase, which must be used for testing. Start with simplicity and configure with simplicity. Installation can be done directly through brew: brew install hbase After successful installation, verify whether it is successful or not. If there is no accident, the output should be as follows: RippleMBP:~ username$ hbase Usage: hba ...

Posted on Sun, 24 Mar 2019 20:39:28 -0700 by 4evernomad

hbase Stand-alone Version Installation + phoneix SQL on hbase Single Node Installation

hbase single machine installation and deployment and phoneix single machine installation Hbase download (jdk needs to be configured first) https://www.apache.org/dyn/closer.lua/hbase/2.0.1/hbase-2.0.1-bin.tar.gz Decompression installation tar -xzvf hbase-2.0.01-bin.tar.gz mv hbase-2.0.0.1-ibin hbase mv hbase-2.0.0.1 hbase mv hbase /opt Mod ...

Posted on Sun, 03 Feb 2019 14:45:16 -0800 by azhan

PUT Server Write Procedure + Source Code Analysis

PUT Server Write Procedure + Source Code Analysis The main contents of this paper are as follows: mem write + wal write process and source code analysis Preface HBase is a distributed database based on LSM model. The full name of LSM is Log-Structured Merge-Trees, which is log-structured merge-tree. The most important featur ...

Posted on Sat, 02 Feb 2019 15:57:16 -0800 by Osiris Beato

Sqoop Extracts Phoenix Data

Scenario: We mainly want to extract HBase data into hive. Sqoop does not support direct extraction of hbase, but we can do it by mapping HBase tables with Phoenix. After Phoenix is installed, the existing data tables in HBase will not be mapped automatically, so it needs to be configured manually if you want to operate the exi ...

Posted on Wed, 30 Jan 2019 20:15:15 -0800 by RootKit