Flink写入Hive

其他 2021-11-27 10:13:28 阅读次数: 0

Flink-pom打包插件

1、pom文件

  
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <java.version>1.8</java.version>
        <flink.version>1.11.3</flink.version>
        <scala.version>2.11</scala.version>
        <hive.version>3.1.2</hive.version>
        <hadoop.version>3.2.2</hadoop.version>
    </properties>

    <dependencies>
        <!-- Flink Dependency -->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-clients_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-java</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-scala_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-core</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-common</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-api-java-bridge_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-api-scala-bridge_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-planner-blink_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-table-planner_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-hadoop-compatibility_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-hadoop-fs</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <!--添加flink table api 集成Hive的依赖-->
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-jdbc_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-hive_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-shaded-hadoop-2-uber</artifactId>
            <version>2.8.3-7.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-json</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-elasticsearch7_${
    
    scala.version}</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-csv</artifactId>
            <version>${
    
    flink.version}</version>
        </dependency>

        <!-- Hadoop Dependency -->
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
            <version>${
    
    hadoop.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-mapreduce-client-core</artifactId>
            <version>${
    
    hadoop.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-mapreduce-client-common</artifactId>
            <version>${
    
    hadoop.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-mapreduce-client-jobclient</artifactId>
            <version>${
    
    hadoop.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-hdfs</artifactId>
            <version>${
    
    hadoop.version}</version>
        </dependency>

        <!-- Hive Dependency -->
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-jdbc</artifactId>
            <version>${
    
    hive.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-exec</artifactId>
            <version>${
    
    hive.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.pentaho</groupId>
                    <artifactId>pentaho-aggdesigner-algorithm</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.hive</groupId>
                    <artifactId>hive-vector-code-gen</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.hive</groupId>
                    <artifactId>hive-llap-tez</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.hive</groupId>
                    <artifactId>hive-shims</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>commons-codec</groupId>
                    <artifactId>commons-codec</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>commons-httpclient</groupId>
                    <artifactId>commons-httpclient</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.logging.log4j</groupId>
                    <artifactId>log4j-slf4j-impl</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.antlr</groupId>
                    <artifactId>antlr-runtime</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.antlr</groupId>
                    <artifactId>ST4</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.ant</groupId>
                    <artifactId>ant</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.commons</groupId>
                    <artifactId>commons-compress</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.ivy</groupId>
                    <artifactId>ivy</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.zookeeper</groupId>
                    <artifactId>zookeeper</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.curator</groupId>
                    <artifactId>apache-curator</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.curator</groupId>
                    <artifactId>curator-framework</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.codehaus.groovy</groupId>
                    <artifactId>groovy-all</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.calcite</groupId>
                    <artifactId>calcite-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.calcite</groupId>
                    <artifactId>calcite-druid</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.calcite.avatica</groupId>
                    <artifactId>avatica</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.calcite</groupId>
                    <artifactId>calcite-avatica</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.google.code.gson</groupId>
                    <artifactId>gson</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>stax</groupId>
                    <artifactId>stax-api</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                </exclusion>
            </exclusions>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-metastore</artifactId>
            <version>${
    
    hive.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-cli</artifactId>
            <version>${
    
    hive.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-common</artifactId>
            <version>${
    
    hive.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-service</artifactId>
            <version>${
    
    hive.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hive</groupId>
            <artifactId>hive-shims</artifactId>
            <version>${
    
    hive.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hive.hcatalog</groupId>
            <artifactId>hive-hcatalog-core</artifactId>
            <version>${
    
    hive.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.thrift</groupId>
            <artifactId>libfb303</artifactId>
            <version>0.9.3</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.4.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.4.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.4.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.scala-tools</groupId>
                <artifactId>maven-scala-plugin</artifactId>
                <version>2.15.2</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>testCompile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.19</version>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>

                            <relocations>
                                <relocation>
                                    <pattern>org.apache.flink</pattern>
                                    <shadedPattern>org.apache.flink</shadedPattern>
                                </relocation>
                            </relocations>

                        </configuration>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.1.0</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <filters>
                                <filter>
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>

                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.changxindata.flink.ReadFromMysql</mainClass>
                                    <mainClass>com.changxindata.flink.StreamMain</mainClass>
                                    <mainClass>com.changxindata.flink.HiveIntegrationDemo</mainClass>
                                </transformer>
                                <!--                                &lt;!&ndash; <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">-->
                                <!--                                     <resource>META-INF/spring.handlers</resource>-->
                                <!--                                 </transformer>-->
                                <!--                                 <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">-->
                                <!--                                     <resource>META-INF/spring.schemas</resource>-->
                                <!--                                 </transformer>&ndash;&gt;-->
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>

    </build>

2、flink的lib目录中添加jar包
下载jar包

  • https://repo.maven.apache.org/maven2/org/apache/flink/flink-sql-connector-hive-3.1.2_2.11/
flink-connector-jdbc_2.11-1.11.3.jar
flink-shaded-hadoop-2-uber-2.8.3-7.0.jar
flink-sql-connector-hive-3.1.2_2.11-1.11.3.jar
mysql-connector-java-5.1.49.jar

4、代码编写


import org.apache.flink.streaming.api.TimeCharacteristic;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.api.functions.AssignerWithPunctuatedWatermarks;
import org.apache.flink.streaming.api.functions.source.SourceFunction;
import org.apache.flink.streaming.api.watermark.Watermark;
import org.apache.flink.table.api.SqlDialect;
import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
import org.apache.flink.table.catalog.hive.HiveCatalog;

import java.sql.Timestamp;

public class StreamMain {
    
    
    public static void main(String[] args) {
    
    

        StreamExecutionEnvironment bsEnv = StreamExecutionEnvironment.getExecutionEnvironment();
        bsEnv.enableCheckpointing(10000);
        bsEnv.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);
        StreamTableEnvironment tEnv = StreamTableEnvironment.create(bsEnv);
        DataStream<UserInfo> dataStream = bsEnv.addSource(new MySource())
                .assignTimestampsAndWatermarks(
                        new AssignerWithPunctuatedWatermarks<UserInfo>() {
    
    
                            long water = 0l;

                            @Override
                            public Watermark checkAndGetNextWatermark(
                                    UserInfo lastElement,
                                    long extractedTimestamp) {
    
    
                                return new Watermark(water);
                            }

                            @Override
                            public long extractTimestamp(
                                    UserInfo element,
                                    long recordTimestamp) {
    
    
                                water = element.getTs().getTime();
                                return water;
                            }
                        });


        //构造hive catalog
        String name = "hive";      // Catalog名称，定义一个唯一的名称表示
        String defaultDatabase = "default";  // 默认数据库名称
        String hiveConfDir = "/data/module/hive-3.1.2/conf/";  // hive-site.xml路径
        String version = "3.1.2";       // Hive版本号


        HiveCatalog hive = new HiveCatalog(name, defaultDatabase, hiveConfDir, version);
        tEnv.registerCatalog("hive", hive);
        tEnv.useCatalog("hive");
        tEnv.getConfig().setSqlDialect(SqlDialect.HIVE);
        tEnv.useDatabase("ods");

        tEnv.createTemporaryView("users", dataStream);

//      如果hive中已经存在了相应的表，则这段代码省略
//        String hiveSql = "CREATE external TABLE fs_table (\n" +
//                "  user_id STRING,\n" +
//                "  order_amount DOUBLE" +
//                ") partitioned by (dt string,h string,m string) " +
//                "stored as ORC " +
//                "TBLPROPERTIES (\n" +
//                "  'partition.time-extractor.timestamp-pattern'='$dt $h:$m:00',\n" +
//                "  'sink.partition-commit.delay'='0s',\n" +
//                "  'sink.partition-commit.trigger'='partition-time',\n" +
//                "  'sink.partition-commit.policy.kind'='metastore'" +
//                ")";
//        tEnv.executeSql(hiveSql);

        String insertSql = "insert into  fs_table SELECT userId, amount, " +
                " DATE_FORMAT(ts, 'yyyy-MM-dd'), DATE_FORMAT(ts, 'HH'), DATE_FORMAT(ts, 'mm') FROM users";

        tEnv.executeSql(insertSql);
    }

    public static class MySource implements SourceFunction<UserInfo> {
    
    

        String userids[] = {
    
    
                "4760858d-2bec-483c-a535-291de04b2247", "67088699-d4f4-43f2-913c-481bff8a2dc5",
                "72f7b6a8-e1a9-49b4-9a0b-770c41e01bfb", "dfa27cb6-bd94-4bc0-a90b-f7beeb9faa8b",
                "aabbaa50-72f4-495c-b3a1-70383ee9d6a4", "3218bbb9-5874-4d37-a82d-3e35e52d1702",
                "3ebfb9602ac07779||3ebfe9612a007979", "aec20d52-c2eb-4436-b121-c29ad4097f6c",
                "e7e896cd939685d7||e7e8e6c1930689d7", "a4b1e1db-55ef-4d9d-b9d2-18393c5f59ee"
        };

        @Override
        public void run(SourceFunction.SourceContext<UserInfo> sourceContext) throws Exception {
    
    

            while (true) {
    
    
                String userid = userids[(int) (Math.random() * (userids.length - 1))];
                UserInfo userInfo = new UserInfo();
                userInfo.setUserId(userid);
                userInfo.setAmount(Math.random() * 100);
                userInfo.setTs(new Timestamp(System.currentTimeMillis()));
                sourceContext.collect(userInfo);
                Thread.sleep(100);
            }
        }

        @Override
        public void cancel() {
    
    

        }
    }


    public static class UserInfo implements java.io.Serializable {
    
    
        private String userId;
        private Double amount;
        private Timestamp ts;

        public String getUserId() {
    
    
            return userId;
        }

        public void setUserId(String userId) {
    
    
            this.userId = userId;
        }

        public Double getAmount() {
    
    
            return amount;
        }

        public void setAmount(Double amount) {
    
    
            this.amount = amount;
        }

        public Timestamp getTs() {
    
    
            return ts;
        }

        public void setTs(Timestamp ts) {
    
    
            this.ts = ts;
        }
    }
}

5、打包

  mvn clean package -DskipTests

6、执行flink-session

bin/yarn-session.sh  -n 3 -s 3 -nm flink-session  -d -q
./bin/flink run -yid application_1619571525400_0060 ./examples/batch/xxx.jar

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