Apache Spark+Ignite集群瘦客户端

Question

我正在尝试使用apache-spark读取和写入Ignite集群，我可以使用JDBC瘦客户机，但不是本机方法，正如几个spark+Ignite示例中提到的那样。

现在，所有的spark+ignite示例都启动了一个本地ignite集群，但我希望我的代码作为客户端连接到已经存在的集群。

val df = spark.read
.format("jdbc")
.option("url", "jdbc:ignite:thin://3.88.248.113")
.option("fetchsize",100)
//.option("driver", "org.apache.ignite.IgniteJdbcDriver")
.option("dbtable", "Person").load()

df.printSchema()

df.createOrReplaceTempView("test")

spark.sql("select * from test where id=1").show(10)

spark.sql("select 4,'blah',124232").show(10)

import java.sql.DriverManager
val connection = DriverManager.getConnection("jdbc:ignite:thin://3.88.248.113")

import java.util.Properties
val connectionProperties = new Properties()

connectionProperties.put("url", "jdbc:ignite:thin://3.88.248.113")

spark.sql("select 4 as ID,'blah' as STREET,124232 as ZIP").write.mode(SaveMode.Append).jdbc("jdbc:ignite:thin://3.88.248.113",
  "Person",connectionProperties)

spark.read
  .format("jdbc")
  .option("url", "jdbc:ignite:thin://3.88.248.113")
  .option("fetchsize",100)
  .option("dbtable", "Person").load().show(10,false)

val igniteDF = spark.read
  .format(FORMAT_IGNITE) //Data source type.
  .option(OPTION_TABLE, "person") //Table to read.
  .option(OPTION_CONFIG_FILE, CONFIG) //Ignite config.
  .load()
  .filter(col("id") >= 2) //Filter clause.
  .filter(col("name") like "%J%") //Another filter clause.

完整代码：-（sparkDSLExample）函数无法使用thin连接ignite远程群集

package com.ignite.examples.spark

import com.ignite.examples.model.Address
import org.apache.ignite.{Ignite, Ignition}
import org.apache.ignite.cache.query.SqlFieldsQuery
import org.apache.ignite.client.{ClientCache, IgniteClient}
import org.apache.ignite.configuration.{CacheConfiguration, ClientConfiguration}
import java.lang.{Long => JLong, String => JString}

import org.apache.ignite.cache.query.SqlFieldsQuery
import org.apache.ignite.spark.IgniteDataFrameSettings.{FORMAT_IGNITE, OPTION_CONFIG_FILE, OPTION_TABLE}
import org.apache.log4j.{Level, Logger}
import org.apache.spark.sql.{SaveMode, SparkSession}
import org.apache.spark.sql.functions.col

object SparkClientConnectionTest {

  private val CACHE_NAME = "SparkCache"

  private val CONFIG = "/Users/kalit_000/Downloads/designing-event-driven-applications-apache-kafka-ecosystem/05/demos/kafka-streams-after/ApacheIgnitePoc/src/main/scala/com/ignite/examples/config/example-ignite.xml"

  def setupExampleData = {

    val cfg2 = new ClientConfiguration().setAddresses("3.88.248.113:10800")
    val igniteClient:IgniteClient = Ignition.startClient(cfg2)

    System.out.format(">>> Created cache [%s].\n", CACHE_NAME)

    val cache:ClientCache[Integer, Address] = igniteClient.getOrCreateCache(CACHE_NAME)

    cache.query(new SqlFieldsQuery(String.format("DROP TABLE IF EXISTS Person"))
      .setSchema("PUBLIC")).getAll

    cache.query(new SqlFieldsQuery(String.format("CREATE TABLE IF NOT EXISTS Person (id LONG,street varchar, zip VARCHAR, PRIMARY KEY (id) ) WITH \"VALUE_TYPE=%s\"", classOf[Address].getName))
      .setSchema("PUBLIC")).getAll

    cache.query(new SqlFieldsQuery("INSERT INTO Person(id,street, zip) VALUES(?,?, ?)").setArgs(1L.asInstanceOf[JLong],"Jameco", "04074").setSchema("PUBLIC")).getAll
    cache.query(new SqlFieldsQuery("INSERT INTO Person(id,street, zip) VALUES(?,?, ?)").setArgs(2L.asInstanceOf[JLong],"Bremar road", "520003").setSchema("PUBLIC")).getAll
    cache.query(new SqlFieldsQuery("INSERT INTO Person(id,street, zip) VALUES(?,?, ?)").setArgs(3L.asInstanceOf[JLong],"orange road", "1234").setSchema("PUBLIC")).getAll

    System.out.format(">>> Data Inserted into Cache [%s].\n", CACHE_NAME)

    val data=cache.query(new SqlFieldsQuery("select * from Person").setSchema("PUBLIC")).getAll

    println(data.toString)
  }

  def sparkDSLExample(implicit spark: SparkSession): Unit = {
    println("Querying using Spark DSL.")
    println


    val igniteDF = spark.read
      .format(FORMAT_IGNITE) //Data source type.
      .option(OPTION_TABLE, "person") //Table to read.
      .option(OPTION_CONFIG_FILE, CONFIG) //Ignite config.
      .load()
      .filter(col("id") >= 2) //Filter clause.
      .filter(col("name") like "%J%") //Another filter clause.

    println("Data frame schema:")

    igniteDF.printSchema() //Printing query schema to console.

    println("Data frame content:")

    igniteDF.show() //Printing query results to console.
  }


  def main(args: Array[String]): Unit = {

    setupExampleData

    //Creating spark session.
    implicit val spark = SparkSession.builder()
      .appName("Spark Ignite data sources example")
      .master("local")
      .config("spark.executor.instances", "2")
      .getOrCreate()

    // Adjust the logger to exclude the logs of no interest.
    Logger.getRootLogger.setLevel(Level.ERROR)
    Logger.getLogger("org.apache.ignite").setLevel(Level.INFO)

    //sparkDSLExample


    val df = spark.read
    .format("jdbc")
    .option("url", "jdbc:ignite:thin://3.88.248.113")
    .option("fetchsize",100)
    //.option("driver", "org.apache.ignite.IgniteJdbcDriver")
    .option("dbtable", "Person").load()

    df.printSchema()

    df.createOrReplaceTempView("test")

    spark.sql("select * from test where id=1").show(10)

    spark.sql("select 4,'blah',124232").show(10)

    import java.sql.DriverManager
    val connection = DriverManager.getConnection("jdbc:ignite:thin://3.88.248.113")

    import java.util.Properties
    val connectionProperties = new Properties()

    connectionProperties.put("url", "jdbc:ignite:thin://3.88.248.113")

    spark.sql("select 4 as ID,'blah' as STREET,124232 as ZIP").write.mode(SaveMode.Append).jdbc("jdbc:ignite:thin://3.88.248.113",
      "Person",connectionProperties)

    spark.read
      .format("jdbc")
      .option("url", "jdbc:ignite:thin://3.88.248.113")
      .option("fetchsize",100)
      .option("dbtable", "Person").load().show(10,false)

  }

}

示例-default.xml：-

<?xml version="1.0" encoding="UTF-8"?>

<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->

<!--
    Ignite configuration with all defaults and enabled p2p deployment and enabled events.
-->
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:util="http://www.springframework.org/schema/util"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util.xsd">
    <bean abstract="true" id="ignite.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
        <!-- Set to true to enable distributed class loading for examples, default is false. -->
        <property name="peerClassLoadingEnabled" value="true"/>

        <!-- Enable task execution events for examples. -->
        <property name="includeEventTypes">
            <list>
                <!--Task execution events-->
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_STARTED"/>
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_FINISHED"/>
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_FAILED"/>
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_TIMEDOUT"/>
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_SESSION_ATTR_SET"/>
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_TASK_REDUCED"/>

                <!--Cache events-->
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_PUT"/>
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_READ"/>
                <util:constant static-field="org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_REMOVED"/>
            </list>
        </property>

        <!-- Explicitly configure TCP discovery SPI to provide list of initial nodes. -->
        <property name="discoverySpi">
            <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
                <property name="ipFinder">
                    <!--
                        Ignite provides several options for automatic discovery that can be used
                        instead os static IP based discovery. For information on all options refer
                        to our documentation: http://apacheignite.readme.io/docs/cluster-config
                    -->
                    <!-- Uncomment static IP finder to enable static-based discovery of initial nodes. -->
                    <!--<bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">-->
                    <bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.multicast.TcpDiscoveryMulticastIpFinder">
                        <property name="addresses">
                            <list>
                                <!-- In distributed environment, replace with actual host IP address. -->
                                <value>3.88.248.113:10800</value>
                            </list>
                        </property>
                    </bean>
                </property>
            </bean>
        </property>
    </bean>
</beans>

Answer 1

JDBC瘦客户机是连接AWS上的Ignite+外部Ignite集群的Spark的唯一方式，这在下面的grid gain博客中得到了回答。

https://forums.gridgain.com/community-home/digestviewer/viewthread？messagekey=13f5e836-1569-486a-8475-84c70fc141e0&communitykey=3b551477-7e2d-462f-bc5f-d6d10ccbbe35&tab=digestviewer&successmsg=thank+you+for+submitting+your+message。

Spark+Ignite示例：-https://github.com/kali786516/apacheignitePoc/blob/master/src/main/scala/com/Ignite/examples/Spark/sparkigniteCleanCode.scala