hive 和mysql配置_Hive学习和配置Mysql
1.Hive簡介 起源自facebook由Jeff Hammerbacher領導的團隊 構建在Hadoop上的數據倉庫框架 設計目的是讓SQL技能良好,但Java技能較弱的分析師可以查詢海量數據 2008年facebook把hive項目貢獻給Apache Hive的組件與體系架構 用戶接口:shell, thrift, web等 Th
1.Hive簡介
? 起源自facebook由Jeff Hammerbacher領導的團隊
? 構建在Hadoop上的數據倉庫框架
? 設計目的是讓SQL技能良好,但Java技能較弱的分析師可以查詢海量數據
? 2008年facebook把hive項目貢獻給Apache
Hive的組件與體系架構
? 用戶接口:shell, thrift, web等
? Thrift服務器
? 元數據庫“Derby, Mysql等
? 解析器
? Hadoop
Hive安裝模式
? 內嵌模式:元數據保持在內嵌的Derby模式,只允許一個會話連接(默認)
? 本地獨立模式:在本地安裝Mysql,把元數據放到Mysql內
? 遠程模式:元數據放置在遠程的Mysql數據庫
2.配置Mysql
1:copy mysql-connector-java-5.1.6-bin.jar到$HIVE_HOME/lib
[jifeng@jifeng02 hadoop]$ ls
7287OS_Code hadoop-1.2.1.tar.gz hive-0.12.0-bin tmp
hadoop-1.2.1 hadoop-2.4.1-src.tar.gz hive-0.12.0-bin.tar.gz
hadoop-1.2.1-bin.tar.gz hadoop-2.4.1.tar.gz mysql-connector-java-5.1.6-bin.jar
[jifeng@jifeng02 hadoop]$ cp mysql-connector-java-5.1.6-bin.jar hive-0.12.0-bin/lib
2:修改$HIVE_HOME/conf/hive-site.xml
javax.jdo.option.ConnectionURL
jdbc:mysql://jifengsql:3306/hive?createDatabaseIfNotExist=true
JDBC connect string for a JDBC metastore
javax.jdo.option.ConnectionDriverName
com.mysql.jdbc.Driver
Driver class name for a JDBC metastore
javax.jdo.PersistenceManagerFactoryClass
org.datanucleus.api.jdo.JDOPersistenceManagerFactory
class implementing the jdo persistence
javax.jdo.option.DetachAllOnCommit
true
detaches all objects from session so that they can be used after transaction is committed
description>
javax.jdo.option.NonTransactionalRead
true
reads outside of transactions
javax.jdo.option.ConnectionUserName
dss
username to use against metastore database
javax.jdo.option.ConnectionPassword
jifeng
password to use against metastore database
3:啟動hive
[jifeng@jifeng02 hive-0.12.0-bin]$ hive
Logging initialized using configuration in jar:file:/home/jifeng/hadoop/hive-0.12.0-bin/lib/hive-common-0.12.0.jar!/hive-log4j.properties
hive> show tables;
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
hive> quit;報錯,網上查詢后說是沒把 mysql的jar包mysql-connector-java-5.1.10-bin.jar,放在hive安裝目錄的lib下
把 mysql-connector-java-5.1.6-bin.jar 替換成mysql-connector-java-5.1.10-bin.jar還是不行。
檢查 mysql發現連接不上,換個虛擬機上mysql
[dss@localhost ~]$ mysql -u root -p
Enter password:
--root 登陸mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 70
Server version: 5.6.16 MySQL Community Server (GPL)
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create database hive;
Query OK, 1 row affected (0.01 sec) --創建hive庫
mysql> GRANT all ON hive.* TO dss@'%' IDENTIFIED BY 'abc123';
Query OK, 0 rows affected (0.03 sec)--給dss用戶對hive庫授權
mysql> flush privileges;
Query OK, 0 rows affected (0.02 sec)--刷新系統權限表
mysql> set globalbinlog_format='MIXED';
ERROR 1193 (HY000): Unknown system variable 'globalbinlog_format'
mysql> alter database hive character set latin1 ;
Query OK, 1 row affected (0.00 sec)--更新字符集
再次啟動
[jifeng@jifeng02 hive-0.12.0-bin]$ hive
Logging initialized using configuration in jar:file:/home/jifeng/hadoop/hive-0.12.0-bin/lib/hive-common-0.12.0.jar!/hive-log4j.properties
hive> show tables;
OK
Time taken: 6.273 seconds
hive>
沒有錯誤了。
4.Hive的運行模式即任務的執行環境
1啟動hive 命令行模式:
1:直接輸入#hive的執行程序,
2:或者輸入 #hive --service cli
l分為本地與集群兩種
我們可以通過mapred.job.tracker 來指明
設置方式:
hive >
SET mapred.job.tracker=local
2.hive驗證啟動的方法
l1、hive web界面的(端口號9999) 啟動方式
#hive --service hwi
[jifeng@jifeng02 hive-0.12.0-bin]$ hive --service cli
Logging initialized using configuration in jar:file:/home/jifeng/hadoop/hive-0.12.0-bin/lib/hive-common-0.12.0.jar!/hive-log4j.properties
hive> quit;
[jifeng@jifeng02 hive-0.12.0-bin]$ hive --service hwi
15/08/17 15:17:10 INFO hwi.HWIServer: HWI is starting up
15/08/17 15:17:10 INFO mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog
15/08/17 15:17:10 INFO mortbay.log: jetty-6.1.26
15/08/17 15:17:10 INFO mortbay.log: Extract /home/jifeng/hadoop/hive-0.12.0-bin/lib/hive-hwi-0.12.0.war to /tmp/Jetty_0_0_0_0_9999_hive.hwi.0.12.0.war__hwi__ow27i/webapp
15/08/17 15:17:11 INFO mortbay.log: Started SocketConnector@0.0.0.0:9999
用于通過瀏覽器來訪問hive
http://jifeng02:9999/hwi/
l2、hive 遠程服務(端口號10000) 啟動方式
#hive --service hiveserver
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