Installation of standalone HBase for linux
Pre-existing environment for installing HBase
1, JDK environment
2、hadoop environment
3, zookeeper environment (optional, HBase comes with zookeeper)
Reference address for each environment./
Optional java versions for each version of HBase
Optional hadoop versions for each HBase version
Version information related to this installation
1、Java 1.8
download address/java/technologies/downloads/
2、Hadoop-3.3.
Download Address:/dist/hadoop/common/
Domestic address:/apache/hadoop/common
3、zookeeper-3.7.
download address/zookeeper/
4、HBase-2.5.
Official website:/
Download Address:/dist/hbase/
The installation of all the java packages are placed in the /opt/firma/ directory, decompressed files are placed in the /opt/app/ path
Installation of the Java environment
1, check whether the current version of the jdk, whether with the need to install the HBase version of the adaptive
# Check if java is installed [root@localhost /]# java -version java version "21.0.3" 2024-04-16 LTS
2, install java1.8
# Unzip the uploaded jar to the specified directory tar -zxvf -C /opt/app/ # Configure environment variables vim /etc/profile
3, add java environment variables
export JAVA_HOME=/opt/app/jdk1.8.0_411 export PATH=$JAVA_HOME/bin:$PATH
4. Reload the configuration by typing: source /etc/profile
source /etc/profile # View java version for testing java -version
Installing Hadoop
1、Configure password-free login
1.1 Setting up a password-free
ssh-keygen -t rsa -P ''
1.2 Generate a key pair without a password, ask for the path to save it and type enter directly
1.3 Generate key pairs: id_rsa and id_rsa.pub, which are stored in the ~/.ssh directory by default. Next: append id_rsa.pub to the authorized key.
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys # Modify permissions chmod 600 ~/.ssh/authorized_keys # Need to enable RSA authentication, start public-private key pairing authentication method vim /etc/ssh/sshd_config
1.4 If prompted for insufficient privileges prefix the command with sudo Modify the ssh configuration
PubkeyAuthentication yes # Enable public-private key pairing authentication method AuthorizedKeysFile %h/.ssh/authorized_keys # Public Key File Path
1.5 Restarting SSH
service ssh restart
1.6 This step reports an error: Failed to restart : Unit not found., use the following command to restart
systemctl restart sshd
2、Configure environment variables
# Unzip the uploaded jar to the specified directory tar -zxvf hadoop-3.3. -C /opt/app/ # Configure environment variables vim /etc/profile
2.1 Add Hadoop environment variable configuration
export HADOOP_HOME=/opt/app/hadoop-3.3.6 export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
2.2 Enabling environment variables source /etc/profile
source /etc/profile
2.3 Execute the hadoop version and verify that it is configured correctly
[root@localhost firma]# hadoop version Hadoop 3.3.6 Source code repository /apache/ -r 1be78238728da9266a4f88195058f08fd012bf9c Compiled by ubuntu on 2023-06-18T08:22Z Compiled on platform linux-x86_64 Compiled with protoc 3.7.1 From source with checksum 5652179ad55f76cb287d9c633bb53bbd This command was run using /opt/app/hadoop-3.3.6/share/hadoop/common/hadoop-common-3.3.
3、Configure Hadoop related files
3.1 In total, you need to modify three files, the path is under $HADOOP_HOME/etc/hadoop/.
cd /opt/app/hadoop-3.3.6/etc/hadoop/ # Modify vim # Add jdk configuration to the file, set the path where the jdk is stored export JAVA_HOME=/opt/app/jdk1.8.0_411
cd /opt/app/hadoop-3.3.6/etc/hadoop/
# Modify
vim
# Add a little configuration
<configuration>
<property>
<!--indicate clearly and with certainty namenode (used form a nominal expression) hdfs 协议文件系统(used form a nominal expression)通信地址-->
<name></name>
<value>hdfs://localhost:8020</value>
</property>
<property>
<!--indicate clearly and with certainty hadoop Data File Storage Directory-->
<name></name>
<value>/opt/app/hadoop/data</value>
</property>
</configuration># Modify
vim
# Add the following configuration
<configuration>
<property>
<!--Since our build here is a standalone version，So specify dfs The copy factor for 1-->
<name></name>
<value>1</value>
</property>
</configuration>4, turn off the firewall, do not turn off the firewall may lead to inability to access Hadoop's Web UI interface
# View firewall status sudo firewall-cmd --state # Disable the firewall. sudo systemctl stop firewalld # Disable boot-up sudo systemctl disable firewalld
5、The first time you start Hadoop, you need to initialize it, enter /opt/app/hadoop-3.3.6/bin directory, execute the following commands
cd /opt/app/hadoop-3.3.6/bin # Perform initialization ./hdfs namenode -format
Hadoop 3 does not allow the use of the root user to start the cluster with a single click, you need to configure the startup user
cd /opt/app/hadoop-3.3.6/bin # Edit, add the following at the top HDFS_DATANODE_USER=root HDFS_DATANODE_SECURE_USER=hdfs HDFS_NAMENODE_USER=root HDFS_SECONDARYNAMENODE_USER=root
6, start HDFS, enter /opt/app/hadoop-3.3.6/bin directory, start HDFS
cd /opt/app/hadoop-3.3.6/bin # Perform a reboot ./
7. Verify startup
Way 1: Execute jps to see if the NameNode and DataNode services have started:
[root@localhost hadoop]# jps 6050 Jps 23909 NameNode 24074 DataNode 24364 SecondaryNameNode
Mode 2: Visit http://localhost:9870/
Installing HBase
Hbase depends on hadoop's hdfs, zookeeper and java environment
1、Download and unzip to set environment variables
# Unzip the uploaded jar to the specified directory
tar -zxvf hbase-2.5. -C /opt/app/
# Configure environment variables
vim /etc/profile
# Add environment variables
export HBASE_HOME=/opt/app/hbase-2.5.8
export PATH=$PATH:${HBASE_HOME}/bin
# Reload environment variables
source /etc/profile2. Modify the hbase configuration file,
# Modify vim /opt/app/hbase-2.5.8/conf/ # Add a little configuration # Requirements jdk1.8+ export JAVA_HOME=/opt/app/jdk1.8.0_411 #Configure whether Hbase uses the built-in zookeeper or not export HBASE_MANAGES_ZK=true
# Modify vim /opt/app/hbase-2.5.8/conf/ <configuration> <!-- falseIt's stand-alone mode.，trueIt's a distributed model.。--> <!-- Distributed meanshbasecap (a poem)zookeeperRunning on a differentjvm，assume (office)hbaseexternalzookeeper --> <property> <name></name> <value>false</value> </property> <!-- hbaseLocation of storage，generalhbasedata existencehdfs，Here.hdfsIt can be a standalone--> <property> <name></name> <!-- Here.hdfsThe address should be the same ashadoop > core > sitehdfsaddress consistency --> <value>hdfs://localhost:8020/hbase</value> </property> <!-- Starting without this will result in an error --> <property> <name></name> <value>false</value> </property> <!-- zk主机地址cap (a poem)端口采用默认的，No need to configure --> <!-- The default will be based on theregionserverGo to the file.，The default islocalhost:2181 --> </configuration>
3. Initiation
cd /opt/app/hbase-2.1.2/bin # Launch ./
4. Test for success
Method 1: Enter: http://localhost1:16010/ in your browser to display this page logo successfully
Show this page logo success
Method II
# Enter the jps command, the presence of the HMaster identifies a successful startup [root@localhost bin]# jps 23909 NameNode 24074 DataNode 15722 Jps 15147 HQuorumPeer 15275 HMaster 24364 SecondaryNameNode # No HRegionServer in stand-alone mode 15486 HRegionServer # You can use the hbase shell, list view table command to see if there are any errors. [root@localhost logs]# hbase shell HBase Shell Use "help" to get list of supported commands. Use "exit" to quit this interactive shell. For Reference, please visit: /2.0/#shell Version 2.5.8, r37444de6531b1bdabf2e445c83d0268ab1a6f919, Thu Feb 29 15:37:32 PST 2024 Took 0.0010 seconds hbase:001:0> list TABLE 0 row(s) Took 0.2467 seconds => [] hbase:002:0> exit
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