hive完全分散式部署
前言
關於hadoop完全分散式部署,我在https://blog.csdn.net/zisefeizhu/article/details/84317520已經有詳細步驟
接https://blog.csdn.net/zisefeizhu/article/details/84317520繼續部署hbase分散式
關於有關原理請關注這個大佬https://blog.csdn.net/ForgetThatNight/article/details/79632364
環境和此連結一致,在這連結出現的內容在此不在宣告https://www.cnblogs.com/edisonchou/p/4440107.html
關於hbase完全分散式部署,我在已經有詳細步驟
本次所需軟體:apache-hive-2.3.4-bin.tar.gz mysql-connector-java-5.1.46.zip
網盤分享:
連結:https://pan.baidu.com/s/1aZv8G-YucFfEf0KSN6xXng
提取碼:h3a0
環境檢查
[[email protected] hadoop]$ sbin/start-all.sh
[[email protected] lib]$ jps
2002 SecondaryNameNode
5726 Jps
1800 NameNode
2157 ResourceManager
注意
hdfs在啟動開始時會進入安全模式,這時檔案系統中的內容不允許修改也不允許刪除,直到安全模式結束。安全模式主要是為了系統啟動的時候檢查各個DataNode上資料塊的有效性,同時根據策略必要的複製或者刪除部分資料塊。執行期通過命令也可以進入安全模式。在實踐過程中,系統啟動的時候去修改和刪除檔案也會有安全模式不允許修改的出錯提示,只需要等待一會兒即可。 如 hadoop fs -mkdir -p /user/hive/warehouse mkdir: Cannot create directory /user/hive/warehouse. Name node is in safe mo 解決 可以等待其自動退出安全模式,也可以使用手動命令來離開安全模式: hadoop fs -mkdir -p /user/hive/warehouse
開始部署
以下操作在root下進行
安裝資料庫【在這裡我以最簡單的方式安裝】
因為Centos預設支援的資料庫是Mariadb,所以需求先解除安裝Mariadb
rpm -qa | grep maria*
解除安裝資料庫:
yum -y remove mari*
刪除資料庫檔案:
rm -rf /var/lib/mysql/*
又因為Centos 7 預設沒有Mysql源 不過我在這裡給你提供了rpm源
wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
rpm -ivh mysql-community-release-el7-5.noarch.rpm
yum install mysql-server
rpm -qi mysql-community-server
systemctl start mysqld.service 啟動資料庫
cat /var/log/mysqld.log|grep 'A temporary password'
mysql
mysqladmin -u root password '1' 設定資料庫密碼
mysql -u root -p
systemctl enable mysqld.service
以下操作在hadoop使用者下進行
mysql - uroot -p 驗證普通使用者下也能登陸
rz 上傳 你下載的hive包到/home/hadoop 下
tar xf apache-hive-2.3.4-bin.tar.gz 解壓
ln -s apache-hive-2.3.4-bin hive 設定軟連結
設定環境變數
[[email protected] ~]$ vim ~/.bash_profile
#新增
#hive
export HIVE_HOME=/home/hadoop/hive
export PATH=$PATH:${HIVE_HOME}/bin
生效配置檔案
source ~/.bash_profile
檢視
hive --version
Hive 2.3.4
Git git://daijymacpro-2.local/Users/daijy/commit/hive -r 56acdd2120b9ce6790185c679223b8b5e884aaf2
Compiled by daijy on Wed Oct 31 14:20:50 PDT 2018
From source with checksum 9f2d17b212f3a05297ac7dd40b65bab0
對HIVE進行配置
建立hive庫並設定相應許可權
mysql -uroot -p
Enter password:
#建立hive資料庫,為下邊做準備
mysql> create database hive;
Query OK, 1 row affected (0.00 sec)
mysql> create user 'hive'@'hadoop01' identified by 'hive';
#授權,其中MASTER為本地主機名,已在hosts中做域名解析
mysql> grant all privileges on *.* to 'hive'@'hadoop01' identified by 'hive';
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
exit
對hive進行配置
進入[[email protected] ~]$ cd hive/conf/ 下 拷貝 hive-default.xml.template為 hive-site.xml
[[email protected] conf]$ cp hive-default.xml.template hive-site.xml
編輯hive-site.xml
[[email protected] conf]$ vim hive-site.xml
#更改hive-site.xml為以下內容
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<!--url-->
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://hadoop01:3306/hive?createDatabaseIfNotExist=true</value>
<description>JDBC connect string for a JDBC metastore</description>
</property>
<!--mysql使用者名稱-->
<property>
<name>javax.jdo.option.ConnectionUserName</name>
<value>hive</value>
<description>username to use against metastore database</description>
</property>
<!--mysql中hive使用者密碼-->
<property>
<name>javax.jdo.option.ConnectionPassword</name>
<value>hive</value>
<description>password to use against metastore database</description>
</property>
<!--mysql驅動-->
<property>
<name>javax.jdo.option.ConnectionDriverName</name>
<value>com.mysql.jdbc.Driver</value>
</property>
<property
<name>hive.downloaded.resources.dir</name>
<value>/home/hadoop/hive/tmp/${hive.session.id}_resources</value>
</property>
編輯hive-env.sh
[[email protected] conf]$ cp hive-env.sh.template hive-env.sh
[[email protected] conf]$ vim hive-env.sh
#在文末新增,java,hadoop,hive環境變數
export JAVA_HOME=/home/hadoop/java
export HADOOP_HOME=/home/hadoop/hadoop
export HIVE_HOME=/home/hadoop/hive
將Mysql驅動包上床到lib目錄,並解壓,並刪除原有包,只保留mysql-connector-java-5.1.46-bin.jar
[[email protected] lib]$ ls | grep mysql-
mysql-connector-java-5.1.46-bin.jar
mysql-metadata-storage-0.9.2.jar
對資料庫進行初始化
[[email protected] lib]$ schematool -dbType mysql -initSchema
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/hadoop/hive/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/hadoop/hadoop-2.7.7/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Metastore connection URL: jdbc:mysql://localhost:3306/hive?createDatabaseIfNotExist=true
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: hive
Starting metastore schema initialization to 2.3.0
Initialization script hive-schema-2.3.0.mysql.sql
Initialization script completed
schemaTool completed
執行hive
[[email protected] ~]$ hive 【注意等待時間過長 但正常 原理自行百度】
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/hadoop/hive/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/
SLF4J: Found binding in [jar:file:/home/hadoop/hadoop-2.7.7/share/hadoop/common/lib/slf4j-log4s]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Logging initialized using configuration in jar:file:/home/hadoop/hive/lib/hive-common-2.3.4.ja
Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider u using Hive 1.X releases.
hive>create database hive_2; 建立hive_2資料庫
OK 顯示OK 表明hive 在主節點配置完成
hive>show databases; 檢視建立的資料庫
hive> show databases;
OK
default
hive_2
Time taken: 18.034 seconds, Fetched: 2 row(s)
當然了也可以在瀏覽器檢視
Hive客戶端配置
把hive檔案複製到從節點
[[email protected] ~]$ scp -r hive [email protected]:/home/hadoop
[[email protected] ~]$ scp -r hive [email protected]:/home/hadoop
把環境變數複製到從節點
[[email protected] ~]$ scp ~/.bash_profile [email protected]2:~
[[email protected] ~]$ scp ~/.bash_profile [email protected]:~
在從節點生效環境變數
source ~/.bash_profile
修改從節點的hive-site-xml
#hadoop01為Hive伺服器主機名,hadoop02和hadoop03都需要修改
[[email protected] ~]$ vim hive/conf/hive-site.xml
<configuration>
<property>
<name>hive.metastore.uris</name>
<value>thrift://hadoop01:9083</value>
</property>
</configuration>
[[email protected] ~]$ vim hive/conf/hive-site.xml
<configuration>
<property>
<name>hive.metastore.uris</name>
<value>thrift://hadoop01:9083</value>
</property>
</configuration>
啟動Hive服務端
#在後臺啟動 不然一直出現資訊提示
[[email protected] ~]$ hive --service metastore &
檢視jps程序
[[email protected] hadoop]$ jps
2002 SecondaryNameNode
6021 Jps
4006 RunJar
1800 NameNode
2157 ResourceManager
OK 至此hive完全分散式部署完成