Hive引擎Tez

环境： System: CentOS Linux release 7.6.1810 (Core) Hadoop: 2.9.2

Java: jdk 1.8.0_211 Hive: 2.3.6 tez: 0.9.2

编译依赖： protobuf: protobuf-2.5.0

编译工具安装： yum install -y gcc-c++ openssl-devel glibc autoconf automake libtool

首先到官网下载tez0.9.2-sec.tar.gz源码包

也可以直接下载二进制包，解压后可跳过此步骤

1.安装protobuf-2.5.0

cd protobuf-2.5.0  
./configure  
make  
make install  
使用protoc --version 验证是否成功

2.解压源码包

3.修改配置: vim pom.xml

<hadoop.version>2.7.0</hadoop.version>
此处根据自己的Hadoop版本来改  ==>
<hadoop.version>2.9.2</hadoop.version>

<!-- 这两个模块注释掉
<module>tez-ext-serive-test</module>
<module>tez-ui</module> -->

4.使用maven编译

mvn clean package -DskipTests=true -Dmaven.javadoc.skip=true

跟Hadoop、Hive整合

1.进入./tez-dist/target

2.将tez-0.9.2.tar.gz压缩包上传到HDFS上：/tez-0.9.2

hadoop fs -mkdir /tez-0.9.2
hadoop fs -put ./tez-0.9.2.tar.gz /tez-0.9.2

3.在TEZ_HOME下创建conf目录并编辑tez-site.xml

mkdir conf vim tez-site.xml

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property>
    <name>tez.lib.uris</name>
    <value>${fs.defaultFS}/tez-0.9.2/tez-0.9.2.tar.gz</value>
  </property>
</configuration>

4.将tez-0.9.2移动到想要的位置并配置环境变量

export TEZ_HOME=path/tez-0.9.2 export TEZ_CONF_DIR=$TEZ_HOME/conf 1. 编辑Hadoop配置 cd $HADOOP_HOME/etc/hadoop vim hadoop-env.sh

export TEZ_HOME=/home/tez-0.9.2
for jar in $TEZ_HOME/*.jar; do
        export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$jar
done
for jar in $TEZ_HOME/lib/*.jar; do
        export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$jar
done

进入hive设置

set hive.execution.engine=tez;

执行语句进行测试 select uid,count(1) from test group by uid;

配置Hive默认引擎

vim $HIVE_HOME/conf/hive-site.xml

     <property>
         <name>hive.execution.engine</name>
         <!--<value>mr</value>-->
         <value>tez</value>
     </property>

问题

1.找不到DAG类

二进制包需要上传 $TEZ_HOME/share/tez.tar.gz

2.机器内存不足

出现类似下面的报错信息

Failing this attempt.Diagnostics: [2019-09-26 17:33:34.455]Container [pid=19299,containerID=container_1569490318346_0002_02_000001] is running beyond virtual memory limits. Current usage: 315.5 MB of 1 GB physical memory used; 2.7 GB of 2.1 GB virtual memory used. Killing container.

vim $TEZ_CONF_DIR/tez-site.xml

  <!-- 此处值默认为0.8，根据需要调整，使其变小 -->
  <property>
    <name>tez.container.max.java.heap.fraction</name>
    <value>0.8</value>
  </property>

3.tez-ui

修改 apache-tez-0.9.2-src/tez-ui/pom.xml文件，在<artifactId>exec-maven-plugin</artifactId>下面的<arguments></arguments>中追加<argument>--allow-root</argument>，如下部分：

<plugin>
  <artifactId>exec-maven-plugin</artifactId>
  <groupId>org.codehaus.mojo</groupId>
  <executions>
    <execution>
      <id>Bower install</id>
      <phase>generate-sources</phase>
      <goals>
        <goal>exec</goal>
      </goals>
      <configuration>
        <workingDirectory>${webappDir}</workingDirectory>
        <executable>${node.executable}</executable>
        <arguments>
          <argument>node_modules/bower/bin/bower</argument>
          <argument>install</argument>
          <argument>--remove-unnecessary-resolutions=false</argument>
          <argument>--allow-root</argument>
        </arguments>
      </configuration>
    </execution>

4.tez-mapreduce编译错误

[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /opt/programs/apache-tez-0.9.2-src/tez-mapreduce/src/main/java/org/apache/tez/mapreduce/hadoop/mapreduce/JobContextImpl.java:[57,8] org.apache.tez.mapreduce.hadoop.mapreduce.JobContextImpl is not abstract and does not override abstract method userClassesTakesPrecedence() in org.apache.hadoop.mapreduce.JobContext
[INFO] 1 error
[INFO] -------------------------------------------------------------

修改apache-tez-0.9.2-src/tez-mapreduce/src/main/java/org/apache/tez/mapreduce/hadoop/mapreduce/JobContextImpl.java文件：在最后追加下面代码

465   @Override
466   public Progressable getProgressible() {
467     return progress;
468   }
469  
470   @Override
471   public boolean userClassesTakesPrecedence() {
472     return getJobConf().getBoolean(MRJobConfig.MAPREDUCE_JOB_USER_CLASSPATH_FIRST, false);
473   }

5.整合lzo

拷贝lzo包到解压后的lib目录

cp hadoop-lzo/target/hadoop-lzo-0.4.21-SNAPSHOT.jar $TEZ_HOME/lib

重新打包 tez

cd $TEZ_HOME tar -zcf tez-0.9.2.tar.gz ./

更新hdfs上的tez包

hadoop fs -rm /tez-0.9.2/tez-0.9.2.tar.gz hadoop fs -put ./ tez-0.9.2.tar.gz /tez-0.9.2/

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