大数据物流项目：实时增量ETL存储Kudu（七）

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Maynor学长 发表于 2022/06/28 08:52:55 2022/06/28
【摘要】 Logistics_Day07：实时增量ETL存储Kudu 01-[复习]-上次课程内容回顾​ 主要讲解：Kudu 存储引擎，类似HBase数据库，存储数据，诞生目的：取代HDFS和HBase，既能够实现随机读写数据，又能够批量加载分析。1）、针对海量数据随机读写，实现HBase数据库功能2）、针对海量数据批量加载，尤其列式存储Parquet​ Kudu框架诞生之初，考虑与...

Logistics_Day07：实时增量ETL存储Kudu

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01-[复习]-上次课程内容回顾

​ 主要讲解：Kudu 存储引擎，类似HBase数据库，存储数据，诞生目的：取代HDFS和HBase，既能够实现随机读写数据，又能够批量加载分析。

  • 1）、针对海量数据随机读写，实现HBase数据库功能
  • 2）、针对海量数据批量加载，尤其列式存储Parquet

​ Kudu框架诞生之初，考虑与分析引擎集成整合，Cloudera公司开源框架：Impala（基于内存分析引擎）和Apache Spark计算引擎集成。==Kudu是存储引擎，OLAP分析数据库，准实时分析==

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通过思维导图，Kudu内容提纲：

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多多熟悉Kudu API使用，无论Java Client API还是与Spark集成。

02-[了解]-第7天：课程内容提纲

主要讲解：物流项目开发环境搭建和编写流式计算程序公共接口：编写流式程序，实时从Kafka消费采集业务数据，对其进行ETL转换处理，最终存储到存储引擎（Kudu、Es、ClickHouse）。

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  • 1）、数据源source：从Kafka中消费不同业务数据存储数据topic
    • 物流系统Logistics：使用OGG采集，存储JSON字符串
    • CRM系统：使用Canal采集，存储JSON字符串
  • 2）、数据转换Transformation：将获取JSON字符串进行解析，封装实体类JavaBean对象中

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物流项目来说，进行数据实时ETL操作，进行封装抽象，采用Scala编程，模拟实时产生的数据，进行测试。

03-[理解]-项目准备之开发环境初始化

​ 由于开发项目时，在Windows系统开发，主要编写Spark程序，涉及使用HADOOP中HDFS文件系统API，在Windows开发时，需要配置：winutils.exe和hadoop.dll。

Windows binaries for Hadoop versions：https://github.com/cdarlint/winutils

  • 1）、配置 HADOOP_HOME

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比如，讲师解压目录

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配置Windows系统环境变量：HADOOP_HOME

image-20210525084001224

  • 2）、hadoop.dll 拷贝

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注意：配置完成以后，建议重启电脑；当然，如果你不配置的话，运行Spark程序时，可能会报错。

04-[理解]-项目初始化之创建Maven工程及模块

首先，创建Maven工程和模块，再进行添加依赖和创建包和导入工具类。

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创建完Maven工程以后，截图如下所示：

image-20210525090704346

  • 1）、创建项目Maven Parent父工程，删除工程的src目录

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配置Maven仓库：安装目录、setting配置文件和repository目录

image-20210525091108153

  • 2）、创建logistics-common公共模块

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  • 3）、创建logistics-etl实时ETL处理模块

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  • 4）、创建logistics-offline离线指标计算模块

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05-[理解]-项目初始化之导入POM依赖

接下来：将父工程和各个Maven Module添加pom文件依赖

  • 1）、父工程【itcast-logistics-parent】依赖
    <repositories>
        <repository>
            <id>aliyun</id>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
        </repository>
        <repository>
            <id>cloudera</id>
            <url>https://repository.cloudera.com/artifactory/cloudera-repos/</url>
        </repository>
        <repository>
            <id>jboss</id>
            <url>http://repository.jboss.com/nexus/content/groups/public</url>
        </repository>
        <repository>
            <id>mvnrepository</id>
            <url>https://mvnrepository.com/</url>
            <!--<layout>default</layout>-->
        </repository>
        <repository>
            <id>elastic.co</id>
            <url>https://artifacts.elastic.co/maven</url>
        </repository>
    </repositories>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
                <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <!-- SDK -->
        <java.version>1.8</java.version>
        <scala.version>2.11</scala.version>
        <!-- Junit -->
        <junit.version>4.12</junit.version>
        <!-- HTTP Version -->
        <http.version>4.5.11</http.version>
        <!-- Hadoop -->
        <hadoop.version>3.0.0-cdh6.2.1</hadoop.version>
        <!-- Spark -->
        <spark.version>2.4.0-cdh6.2.1</spark.version>
       <!-- <spark.version>2.4.0</spark.version>-->
        <!-- Spark Graph Visual -->
        <gs.version>1.3</gs.version>
        <breeze.version>1.0</breeze.version>
        <jfreechart.version>1.5.0</jfreechart.version>
        <!-- Parquet -->
        <parquet.version>1.9.0-cdh6.2.1</parquet.version>
        <!-- Kudu -->
        <kudu.version>1.9.0-cdh6.2.1</kudu.version>
        <!-- Hive -->
        <hive.version>2.1.1-cdh6.2.1</hive.version>
        <!-- Kafka -->
        <!--<kafka.version>2.1.0-cdh6.2.1</kafka.version>-->
        <kafka.version>2.1.0</kafka.version>
        <!-- ClickHouse -->
        <clickhouse.version>0.2.2</clickhouse.version>
        <!-- ElasticSearch -->
        <es.version>7.6.1</es.version>
        <!-- JSON Version -->
        <fastjson.version>1.2.62</fastjson.version>
        <!-- Apache Commons Version -->
        <commons-io.version>2.6</commons-io.version>
        <commons-lang3.version>3.10</commons-lang3.version>
        <commons-beanutils.version>1.9.4</commons-beanutils.version>
        <!-- JDBC Drivers Version-->
        <ojdbc.version>12.2.0.1</ojdbc.version>
        <mysql.version>5.1.44</mysql.version>
        <!-- Other -->
        <jtuple.version>1.2</jtuple.version>
        <!-- Maven Plugins Version -->
        <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
        <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
        <maven-shade-plugin.version>3.2.1</maven-shade-plugin.version>
    </properties>

    <dependencyManagement>

        <dependencies>
            <!-- Scala -->
            <dependency>
                <groupId>org.scala-lang</groupId>
                <artifactId>scala-library</artifactId>
                <version>2.11.12</version>
            </dependency>
            <!-- Test -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
            </dependency>
            <!-- JDBC -->
            <dependency>
                <groupId>com.oracle.jdbc</groupId>
                <artifactId>ojdbc8</artifactId>
                <version>${ojdbc.version}</version>
                <systemPath>D:/BigdataUser/jdbc-drivers/ojdbc8-12.2.0.1.jar</systemPath>
                <scope>system</scope>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!-- Http -->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${http.version}</version>
            </dependency>
            <!-- Apache Kafka -->
            <dependency>
                <groupId>org.apache.kafka</groupId>
                <artifactId>kafka_${scala.version}</artifactId>
                <version>${kafka.version}</version>
                <exclusions>
                    <exclusion>
                        <groupId>com.fasterxml.jackson.core</groupId>
                        <artifactId>jackson-core</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <!-- Spark -->
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-sql_${scala.version}</artifactId>
                <version>${spark.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.spark</groupId>
                <artifactId>spark-sql-kafka-0-10_2.11</artifactId>
                <version>${spark.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.parquet</groupId>
                <artifactId>parquet-common</artifactId>
                <version>${parquet.version}</version>
            </dependency>
            <dependency>
                <groupId>net.jpountz.lz4</groupId>
                <artifactId>lz4</artifactId>
                <version>1.3.0</version>
            </dependency>
            <!-- Graph Visual -->
            <dependency>
                <groupId>org.graphstream</groupId>
                <artifactId>gs-core</artifactId>
                <version>${gs.version}</version>
            </dependency>
            <dependency>
                <groupId>org.graphstream</groupId>
                <artifactId>gs-ui</artifactId>
                <version>${gs.version}</version>
            </dependency>
            <dependency>
                <groupId>org.scalanlp</groupId>
                <artifactId>breeze_${scala.version}</artifactId>
                <version>${breeze.version}</version>
            </dependency>
            <dependency>
                <groupId>org.scalanlp</groupId>
                <artifactId>breeze-viz_${scala.version}</artifactId>
                <version>${breeze.version}</version>
            </dependency>
            <dependency>
                <groupId>org.jfree</groupId>
                <artifactId>jfreechart</artifactId>
                <version>${jfreechart.version}</version>
            </dependency>
            <!-- JSON -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson.version}</version>
            </dependency>
            <!-- Kudu -->
            <dependency>
                <groupId>org.apache.kudu</groupId>
                <artifactId>kudu-client</artifactId>
                <version>${kudu.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.kudu</groupId>
                <artifactId>kudu-spark2_2.11</artifactId>
                <version>${kudu.version}</version>
            </dependency>
            <!-- Hive -->
            <dependency>
                <groupId>org.apache.hive</groupId>
                <artifactId>hive-jdbc</artifactId>
                <version>${hive.version}</version>
            </dependency>
            <!-- Clickhouse -->
            <dependency>
                <groupId>ru.yandex.clickhouse</groupId>
                <artifactId>clickhouse-jdbc</artifactId>
                <version>${clickhouse.version}</version>
                <exclusions>
                    <exclusion>
                        <groupId>com.fasterxml.jackson.core</groupId>
                        <artifactId>jackson-databind</artifactId>
                    </exclusion>
                    <exclusion>
                        <groupId>com.fasterxml.jackson.core</groupId>
                        <artifactId>jackson-core</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <!-- ElasticSearch -->
            <dependency>
                <groupId>org.elasticsearch</groupId>
                <artifactId>elasticsearch</artifactId>
                <version>${es.version}</version>
            </dependency>
            <dependency>
                <groupId>org.elasticsearch.client</groupId>
                <artifactId>elasticsearch-rest-high-level-client</artifactId>
                <version>${es.version}</version>
            </dependency>
            <dependency>
                <groupId>org.elasticsearch.plugin</groupId>
                <artifactId>x-pack-sql-jdbc</artifactId>
                <version>${es.version}</version>
            </dependency>
            <dependency>
                <groupId>org.elasticsearch</groupId>
                <artifactId>elasticsearch-spark-20_2.11</artifactId>
                <version>${es.version}</version>
            </dependency>
            <!-- Alibaba Json -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson.version}</version>
            </dependency>
            <!-- Apache Commons -->
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-beanutils</groupId>
                <artifactId>commons-beanutils</artifactId>
                <version>${commons-beanutils.version}</version>
            </dependency>
            <!-- Other -->
            <dependency>
                <groupId>org.javatuples</groupId>
                <artifactId>javatuples</artifactId>
                <version>${jtuple.version}</version>
            </dependency>
            <!--
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>4.5.3</version>
            </dependency>
            -->
            <dependency>
                <groupId>commons-httpclient</groupId>
                <artifactId>commons-httpclient</artifactId>
                <version>3.0.1</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

由于Oracle数据库驱动包，在Maven仓库中是没有，可以设置驱动在系统本地存储：

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  • 2）、公共模块【logistics-common】依赖
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <!-- Scala -->
        <dependency>
            <groupId>org.scala-lang</groupId>
            <artifactId>scala-library</artifactId>
        </dependency>
        <!-- Test -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- JDBC -->
        <dependency>
            <groupId>com.oracle.jdbc</groupId>
            <artifactId>ojdbc8</artifactId>
            <scope>system</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- Http -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <!-- Apache Commons -->
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
        <!-- Java Tuples -->
        <dependency>
            <groupId>org.javatuples</groupId>
            <artifactId>javatuples</artifactId>
        </dependency>
        <!-- Alibaba Json -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <!-- Apache Kafka -->
        <dependency>
            <groupId>org.apache.kafka</groupId>
            <artifactId>kafka_${scala.version}</artifactId>
        </dependency>
        <!-- Spark -->
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql_${scala.version}</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql-kafka-0-10_2.11</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.parquet</groupId>
            <artifactId>parquet-common</artifactId>
        </dependency>
        <!-- Graph Visual -->
        <dependency>
            <groupId>org.graphstream</groupId>
            <artifactId>gs-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.graphstream</groupId>
            <artifactId>gs-ui</artifactId>
        </dependency>
        <dependency>
            <groupId>org.scalanlp</groupId>
            <artifactId>breeze_${scala.version}</artifactId>
        </dependency>
        <dependency>
            <groupId>org.scalanlp</groupId>
            <artifactId>breeze-viz_${scala.version}</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jfree</groupId>
            <artifactId>jfreechart</artifactId>
        </dependency>
        <!-- Kudu -->
        <dependency>
            <groupId>org.apache.kudu</groupId>
            <artifactId>kudu-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.kudu</groupId>
            <artifactId>kudu-spark2_2.11</artifactId>
        </dependency>
        <!-- Clickhouse -->
        <dependency>
            <groupId>ru.yandex.clickhouse</groupId>
            <artifactId>clickhouse-jdbc</artifactId>
        </dependency>
        <!-- ElasticSearch -->
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-high-level-client</artifactId>
        </dependency>
        <!--
            <dependency>
                <groupId>org.elasticsearch.plugin</groupId>
                <artifactId>x-pack-sql-jdbc</artifactId>
            </dependency>
        -->
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch-spark-20_2.11</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.2.0</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>testCompile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
  • 3）、实时ETL模块【logistics-etl】依赖
    <repositories>
        <repository>
            <id>mvnrepository</id>
            <url>https://mvnrepository.com/</url>
            <layout>default</layout>
        </repository>
        <repository>
            <id>cloudera</id>
            <url>https://repository.cloudera.com/artifactory/cloudera-repos/</url>
        </repository>
        <repository>
            <id>elastic.co</id>
            <url>https://artifacts.elastic.co/maven</url>
        </repository>
    </repositories>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>cn.itcast.logistics</groupId>
            <artifactId>logistics-common</artifactId>
            <version>1.0.0</version>
        </dependency>
        <!-- Scala -->
        <dependency>
            <groupId>org.scala-lang</groupId>
            <artifactId>scala-library</artifactId>
        </dependency>
        <!-- Structured Streaming -->
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql_${scala.version}</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql-kafka-0-10_2.11</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.parquet</groupId>
            <artifactId>parquet-common</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <!-- Other -->
        <dependency>
            <groupId>org.javatuples</groupId>
            <artifactId>javatuples</artifactId>
        </dependency>
        <dependency>
            <groupId>net.jpountz.lz4</groupId>
            <artifactId>lz4</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jfree</groupId>
            <artifactId>jfreechart</artifactId>
        </dependency>
        <!-- kudu -->
        <dependency>
            <groupId>org.apache.kudu</groupId>
            <artifactId>kudu-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.kudu</groupId>
            <artifactId>kudu-spark2_2.11</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-httpclient</groupId>
            <artifactId>commons-httpclient</artifactId>
            <version>3.0.1</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.2.0</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>testCompile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
  • 4）、离线指标计算模块【logistics-offline】依赖
   <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>cn.itcast.logistics</groupId>
            <artifactId>logistics-common</artifactId>
            <version>1.0.0</version>
        </dependency>
        <!-- Scala -->
        <dependency>
            <groupId>org.scala-lang</groupId>
            <artifactId>scala-library</artifactId>
        </dependency>
        <!-- Structured Streaming -->
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql_${scala.version}</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.parquet</groupId>
            <artifactId>parquet-common</artifactId>
        </dependency>
        <dependency>
            <groupId>net.jpountz.lz4</groupId>
            <artifactId>lz4</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jfree</groupId>
            <artifactId>jfreechart</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <!-- kudu -->
        <dependency>
            <groupId>org.apache.kudu</groupId>
            <artifactId>kudu-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.kudu</groupId>
            <artifactId>kudu-spark2_2.11</artifactId>
        </dependency>
        <!-- Other -->
        <dependency>
            <groupId>org.javatuples</groupId>
            <artifactId>javatuples</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-httpclient</groupId>
            <artifactId>commons-httpclient</artifactId>
            <version>3.0.1</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.2.0</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>testCompile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

​ 当工程Project和模块Module添加pom依赖以后，刷新这个工程，添加相关依赖jar包，最好在每个模块下，创建测试类，运行程序看是否成功。

1616034280979

按照Maven管理工程目录结构，创建相应目录，如上图所示，编写测试程序CommonAppTest

06-[掌握]-项目初始化之导入数据生成器模块

任务：将项目模拟生成数据 模块导入至MavenProject工程中，具体步骤如下所述：

  • 1）、解压【logistics-generate.zip】模块到Maven Project目录【D:\Logistics_New\itcast-logistics-parent】下

1616034528374

  • 2）、显示导入模块到Maven Project工程中

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选择，前面解压的模块，点击一步，直到结束

1616034687302

  • 3）、在Maven Project工程pom.xml文件中，手动添加该模块为父工程的子模块。

1616034798350

至此结束，将项目数据模拟生成器模块导入至Maven Projet OK。

  • 4）、初始化操作：将table-data目录一定设置为资源目录

1616034892381

相关代码功能说明：

1616036448312

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