一、Tez 安装

1 下载地址

https://mirrors.tuna.tsinghua.edu.cn/apache/tez/0.9.0/

2 二进制包安装

2.1 解压并重命名

[root@hadoop01 ~]# tar -zxvf /home/apache-tez-0.9.0-bin.tar.gz -C /usr/local/
[root@hadoop01 ~]# mv /usr/local/apache-tez-0.9.0-bin/ /usr/local/tez-0.9.0/

2.2 上传tez.tar.gz到hdfs

[root@hadoop01 tez-0.9.0]# hdfs dfs -mkdir /tez-0.9.0
[root@hadoop01 tez-0.9.0]# hdfs dfs -put /usr/local/tez-0.9.0/share/tez.tar.gz /tez-0.9.0

2.3 配置环境

[root@hadoop01 ~]# vi /etc/profile

增加内容如下：

export TEZ_CONF_DIR=$HADOOP_CONF_DIR
export TEZ_JARS=/usr/local/tez-0.9.0/*:/usr/local/tez-0.9.0/lib/*
export HADOOP_CLASSPATH=$TEZ_CONF_DIR:$TEZ_JARS:$HADOOP_CLASSPATH

[root@hadoop01 ~]# source /etc/profile

2.4 创建配置tez-site.xml文件

1、
[root@hadoop01 ~]# vi /home/hadoop/apps/hadoop-2.8.5/etc/hadoop/tez-site.xml2、
tez-site.xml文件内容如下：
<?xml version="1.0" encoding="UTF-8"?><configuration><property><name>tez.lib.uris</name><value>${fs.defaultFS}/tez-0.9.0/tez.tar.gz</value></property><property><name>tez.container.max.java.heap.fraction</name><value>0.2</value></property>
</configuration>更多配置参考默认配置：/usr/local/tez-0.9.0/conf/tez-default-template.xml

2.5 Tez和Hadoop的兼容

tez下的lib目录中的hadoop包的版本和实际安装的hadoop版本不一定一致，需要将其jar包更换1、删除不符合版本的jar:
[root@hadoop01 tez-0.9.0]# rm -rf ./lib/hadoop-mapreduce-client-core-2.7.0.jar ./lib/hadoop-mapreduce-client-common-2.7.0.jar2、重新在hadoop目录中拷贝:
[root@hadoop01 ~]# cp /home/hadoop/apps/hadoop-2.8.5/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.8.5.jar /usr/local/tez-0.9.0/lib/[root@hadoop01 ~]# cp /home/hadoop/apps/hadoop-2.8.5/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.8.5.jar /usr/local/tez-0.9.0/lib/

2.6 测试Tez引擎

[root@hadoop01 ~]# hive --service metastore &[root@hadoop01 ~]# hivehive> use xry;hive> set hive.execution.engine=tez;hive> select count(*) from u4 group by user_id;hive> set hive.execution.engine=tez;hive> select count(*) from u4 group by user_id;