Apache Spark\u306f\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30c7\u30fc\u30bf\u51e6\u7406\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3042\u308a\u3001\u5206\u6563\u74b0\u5883\u3067\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u4e0a\u3067\u89e3\u6790\u64cd\u4f5c\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001UC\u30d0\u30fc\u30af\u30ec\u30fc\u306e\u5b66\u8853\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3042\u308a\u30012009\u5e74\u306bUC\u30d0\u30fc\u30af\u30ec\u30fc\u306eAMPLab\u3067Matei Zaharia\u306b\u3088\u3063\u3066\u6700\u521d\u306b\u958b\u59cb\u3055\u308c\u307e\u3057\u305f\u3002Apache Spark\u306f\u3001Mesos\u3068\u3057\u3066\u77e5\u3089\u308c\u308b\u30af\u30e9\u30b9\u30bf\u7ba1\u7406\u30c4\u30fc\u30eb\u306e\u4e0a\u306b\u4f5c\u6210\u3055\u308c\u307e\u3057\u305f\u3002\u5f8c\u306b\u3053\u306e\u30c4\u30fc\u30eb\u306f\u5909\u66f4\u3068\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u304c\u884c\u308f\u308c\u3001\u30af\u30e9\u30b9\u30bf\u30d9\u30fc\u30b9\u306e\u74b0\u5883\u3067\u5206\u6563\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
\u30c7\u30e2\u30f3\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u7528\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u3001Maven\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4f5c\u696d\u30b9\u30da\u30fc\u30b9\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
mvn archetype:generate -DgroupId=com.scdev.sparkdemo -DartifactId=JD-Spark-WordCount -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false\r\n<\/code><\/pre>\n\u521d\u3081\u3066Maven\u3092\u5b9f\u884c\u3059\u308b\u5834\u5408\u3001\u751f\u6210\u30b3\u30de\u30f3\u30c9\u3092\u5b8c\u4e86\u3059\u308b\u307e\u3067\u306b\u6570\u79d2\u304b\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001Maven\u306f\u751f\u6210\u30bf\u30b9\u30af\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u3059\u3079\u3066\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u305f\u3089\u3001\u304a\u6c17\u306b\u5165\u308a\u306eIDE\u3067\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u5207\u306aMaven\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u9069\u5207\u306a\u4f9d\u5b58\u95a2\u4fc2\u3092\u542b\u3093\u3060pom.xml\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002<\/p>\n
<dependencies>\r\n\r\n <!-- Import Spark -->\r\n <dependency>\r\n <groupId>org.apache.spark<\/groupId>\r\n <artifactId>spark-core_2.11<\/artifactId>\r\n <version>1.4.0<\/version>\r\n <\/dependency>\r\n\r\n <dependency>\r\n <groupId>junit<\/groupId>\r\n <artifactId>junit<\/artifactId>\r\n <version>4.11<\/version>\r\n <scope>test<\/scope>\r\n <\/dependency>\r\n\r\n<\/dependencies>\r\n\r\n<build>\r\n <plugins>\r\n <plugin>\r\n <groupId>org.apache.maven.plugins<\/groupId>\r\n <artifactId>maven-compiler-plugin<\/artifactId>\r\n <version>2.0.2<\/version>\r\n <configuration>\r\n <source>1.8<\/source>\r\n <target>1.8<\/target>\r\n <\/configuration>\r\n <\/plugin>\r\n <plugin>\r\n <groupId>org.apache.maven.plugins<\/groupId>\r\n <artifactId>maven-jar-plugin<\/artifactId>\r\n <configuration>\r\n <archive>\r\n <manifest>\r\n <addClasspath>true<\/addClasspath>\r\n <classpathPrefix>lib\/<\/classpathPrefix>\r\n <mainClass>com.geekcap.javaworld.sparkexample.WordCount<\/mainClass>\r\n <\/manifest>\r\n <\/archive>\r\n <\/configuration>\r\n <\/plugin>\r\n <plugin>\r\n <groupId>org.apache.maven.plugins<\/groupId>\r\n <artifactId>maven-dependency-plugin<\/artifactId>\r\n <executions>\r\n <execution>\r\n <id>copy<\/id>\r\n <phase>install<\/phase>\r\n <goals>\r\n <goal>copy-dependencies<\/goal>\r\n <\/goals>\r\n <configuration>\r\n <outputDirectory>${project.build.directory}\/lib<\/outputDirectory>\r\n <\/configuration>\r\n <\/execution>\r\n <\/executions>\r\n <\/plugin>\r\n <\/plugins>\r\n<\/build>\r\n<\/code><\/pre>\n\u3053\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306fMaven\u30d9\u30fc\u30b9\u306a\u306e\u3067\u3001\u5b9f\u969b\u306b\u306f\u30de\u30b7\u30f3\u306bApache Spark\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3001\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001Apache Spark\u306e\u5b9f\u884c\u6642\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u958b\u59cb\u3055\u308c\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u304c\u5b8c\u4e86\u3059\u308b\u3068\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3055\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3057\u305f\u3068\u304d\u306b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u8ffd\u52a0\u3055\u308c\u308b\u3059\u3079\u3066\u306eJAR\u30d5\u30a1\u30a4\u30eb\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u7c21\u5358\u306aMaven\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3059\u308b\u3068\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5b8c\u5168\u306a\u4f9d\u5b58\u95a2\u4fc2\u30c4\u30ea\u30fc\u3092\u8868\u793a\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u4f7f\u7528\u3067\u304d\u308b\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/p>\n
mvn dependency:tree\r\n<\/code><\/pre>\n\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u4f9d\u5b58\u95a2\u4fc2\u30c4\u30ea\u30fc\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n
shubham:JD-Spark-WordCount shubham$ mvn dependency:tree\r\n\r\n[INFO] Scanning for projects...\r\n[WARNING]\r\n[WARNING] Some problems were encountered while building the effective model for com.scdev:java-word-count:jar:1.0-SNAPSHOT\r\n[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-jar-plugin is missing. @ line 41, column 21\r\n[WARNING]\r\n[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.\r\n[WARNING]\r\n[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.\r\n[WARNING]\r\n[INFO]\r\n[INFO] -------------------< com.scdev:java-word-count >-------------------\r\n[INFO] Building java-word-count 1.0-SNAPSHOT\r\n[INFO] --------------------------------[ jar ]---------------------------------\r\n[INFO]\r\n[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ java-word-count ---\r\n[INFO] com.scdev:java-word-count:jar:1.0-SNAPSHOT\r\n[INFO] +- org.apache.spark:spark-core_2.11:jar:1.4.0:compile\r\n[INFO] | +- com.twitter:chill_2.11:jar:0.5.0:compile\r\n[INFO] | | \\- com.esotericsoftware.kryo:kryo:jar:2.21:compile\r\n[INFO] | | +- com.esotericsoftware.reflectasm:reflectasm:jar:shaded:1.07:compile\r\n[INFO] | | +- com.esotericsoftware.minlog:minlog:jar:1.2:compile\r\n[INFO] | | \\- org.objenesis:objenesis:jar:1.2:compile\r\n[INFO] | +- com.twitter:chill-java:jar:0.5.0:compile\r\n[INFO] | +- org.apache.hadoop:hadoop-client:jar:2.2.0:compile\r\n[INFO] | | +- org.apache.hadoop:hadoop-common:jar:2.2.0:compile\r\n[INFO] | | | +- commons-cli:commons-cli:jar:1.2:compile\r\n[INFO] | | | +- org.apache.commons:commons-math:jar:2.1:compile\r\n[INFO] | | | +- xmlenc:xmlenc:jar:0.52:compile\r\n[INFO] | | | +- commons-io:commons-io:jar:2.1:compile\r\n[INFO] | | | +- commons-logging:commons-logging:jar:1.1.1:compile\r\n[INFO] | | | +- commons-lang:commons-lang:jar:2.5:compile\r\n[INFO] | | | +- commons-configuration:commons-configuration:jar:1.6:compile\r\n[INFO] | | | | +- commons-collections:commons-collections:jar:3.2.1:compile\r\n[INFO] | | | | +- commons-digester:commons-digester:jar:1.8:compile\r\n[INFO] | | | | | \\- commons-beanutils:commons-beanutils:jar:1.7.0:compile\r\n[INFO] | | | | \\- commons-beanutils:commons-beanutils-core:jar:1.8.0:compile\r\n[INFO] | | | +- org.codehaus.jackson:jackson-core-asl:jar:1.8.8:compile\r\n[INFO] | | | +- org.apache.avro:avro:jar:1.7.4:compile\r\n[INFO] | | | +- com.google.protobuf:protobuf-java:jar:2.5.0:compile\r\n[INFO] | | | +- org.apache.hadoop:hadoop-auth:jar:2.2.0:compile\r\n[INFO] | | | \\- org.apache.commons:commons-compress:jar:1.4.1:compile\r\n[INFO] | | | \\- org.tukaani:xz:jar:1.0:compile\r\n[INFO] | | +- org.apache.hadoop:hadoop-hdfs:jar:2.2.0:compile\r\n[INFO] | | | \\- org.mortbay.jetty:jetty-util:jar:6.1.26:compile\r\n[INFO] | | +- org.apache.hadoop:hadoop-mapreduce-client-app:jar:2.2.0:compile\r\n[INFO] | | | +- org.apache.hadoop:hadoop-mapreduce-client-common:jar:2.2.0:compile\r\n[INFO] | | | | +- org.apache.hadoop:hadoop-yarn-client:jar:2.2.0:compile\r\n[INFO] | | | | | +- com.google.inject:guice:jar:3.0:compile\r\n[INFO] | | | | | | +- javax.inject:javax.inject:jar:1:compile\r\n[INFO] | | | | | | \\- aopalliance:aopalliance:jar:1.0:compile\r\n[INFO] | | | | | +- com.sun.jersey.jersey-test-framework:jersey-test-framework-grizzly2:jar:1.9:compile\r\n[INFO] | | | | | | +- com.sun.jersey.jersey-test-framework:jersey-test-framework-core:jar:1.9:compile\r\n[INFO] | | | | | | | +- javax.servlet:javax.servlet-api:jar:3.0.1:compile\r\n[INFO] | | | | | | | \\- com.sun.jersey:jersey-client:jar:1.9:compile\r\n[INFO] | | | | | | \\- com.sun.jersey:jersey-grizzly2:jar:1.9:compile\r\n[INFO] | | | | | | +- org.glassfish.grizzly:grizzly-https:jar:2.1.2:compile\r\n[INFO] | | | | | | | \\- org.glassfish.grizzly:grizzly-framework:jar:2.1.2:compile\r\n[INFO] | | | | | | | \\- org.glassfish.gmbal:gmbal-api-only:jar:3.0.0-b023:compile\r\n[INFO] | | | | | | | \\- org.glassfish.external:management-api:jar:3.0.0-b012:compile\r\n[INFO] | | | | | | +- org.glassfish.grizzly:grizzly-http-server:jar:2.1.2:compile\r\n[INFO] | | | | | | | \\- org.glassfish.grizzly:grizzly-rcm:jar:2.1.2:compile\r\n[INFO] | | | | | | +- org.glassfish.grizzly:grizzly-http-servlet:jar:2.1.2:compile\r\n[INFO] | | | | | | \\- org.glassfish:javax.servlet:jar:3.1:compile\r\n[INFO] | | | | | +- com.sun.jersey:jersey-json:jar:1.9:compile\r\n[INFO] | | | | | | +- org.codehaus.jettison:jettison:jar:1.1:compile\r\n[INFO] | | | | | | | \\- stax:stax-api:jar:1.0.1:compile\r\n[INFO] | | | | | | +- com.sun.xml.bind:jaxb-impl:jar:2.2.3-1:compile\r\n[INFO] | | | | | | | \\- javax.xml.bind:jaxb-api:jar:2.2.2:compile\r\n[INFO] | | | | | | | \\- javax.activation:activation:jar:1.1:compile\r\n[INFO] | | | | | | +- org.codehaus.jackson:jackson-jaxrs:jar:1.8.3:compile\r\n[INFO] | | | | | | \\- org.codehaus.jackson:jackson-xc:jar:1.8.3:compile\r\n[INFO] | | | | | \\- com.sun.jersey.contribs:jersey-guice:jar:1.9:compile\r\n[INFO] | | | | \\- org.apache.hadoop:hadoop-yarn-server-common:jar:2.2.0:compile\r\n[INFO] | | | \\- org.apache.hadoop:hadoop-mapreduce-client-shuffle:jar:2.2.0:compile\r\n[INFO] | | +- org.apache.hadoop:hadoop-yarn-api:jar:2.2.0:compile\r\n[INFO] | | +- org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.2.0:compile\r\n[INFO] | | | \\- org.apache.hadoop:hadoop-yarn-common:jar:2.2.0:compile\r\n[INFO] | | +- org.apache.hadoop:hadoop-mapreduce-client-jobclient:jar:2.2.0:compile\r\n[INFO] | | \\- org.apache.hadoop:hadoop-annotations:jar:2.2.0:compile\r\n[INFO] | +- org.apache.spark:spark-launcher_2.11:jar:1.4.0:compile\r\n[INFO] | +- org.apache.spark:spark-network-common_2.11:jar:1.4.0:compile\r\n[INFO] | +- org.apache.spark:spark-network-shuffle_2.11:jar:1.4.0:compile\r\n[INFO] | +- org.apache.spark:spark-unsafe_2.11:jar:1.4.0:compile\r\n[INFO] | +- net.java.dev.jets3t:jets3t:jar:0.7.1:compile\r\n[INFO] | | +- commons-codec:commons-codec:jar:1.3:compile\r\n[INFO] | | \\- commons-httpclient:commons-httpclient:jar:3.1:compile\r\n[INFO] | +- org.apache.curator:curator-recipes:jar:2.4.0:compile\r\n[INFO] | | +- org.apache.curator:curator-framework:jar:2.4.0:compile\r\n[INFO] | | | \\- org.apache.curator:curator-client:jar:2.4.0:compile\r\n[INFO] | | +- org.apache.zookeeper:zookeeper:jar:3.4.5:compile\r\n[INFO] | | | \\- jline:jline:jar:0.9.94:compile\r\n[INFO] | | \\- com.google.guava:guava:jar:14.0.1:compile\r\n[INFO] | +- org.eclipse.jetty.orbit:javax.servlet:jar:3.0.0.v201112011016:compile\r\n[INFO] | +- org.apache.commons:commons-lang3:jar:3.3.2:compile\r\n[INFO] | +- org.apache.commons:commons-math3:jar:3.4.1:compile\r\n[INFO] | +- com.google.code.findbugs:jsr305:jar:1.3.9:compile\r\n[INFO] | +- org.slf4j:slf4j-api:jar:1.7.10:compile\r\n[INFO] | +- org.slf4j:jul-to-slf4j:jar:1.7.10:compile\r\n[INFO] | +- org.slf4j:jcl-over-slf4j:jar:1.7.10:compile\r\n[INFO] | +- log4j:log4j:jar:1.2.17:compile\r\n[INFO] | +- org.slf4j:slf4j-log4j12:jar:1.7.10:compile\r\n[INFO] | +- com.ning:compress-lzf:jar:1.0.3:compile\r\n[INFO] | +- org.xerial.snappy:snappy-java:jar:1.1.1.7:compile\r\n[INFO] | +- net.jpountz.lz4:lz4:jar:1.2.0:compile\r\n[INFO] | +- org.roaringbitmap:RoaringBitmap:jar:0.4.5:compile\r\n[INFO] | +- commons-net:commons-net:jar:2.2:compile\r\n[INFO] | +- org.spark-project.akka:akka-remote_2.11:jar:2.3.4-spark:compile\r\n[INFO] | | +- org.spark-project.akka:akka-actor_2.11:jar:2.3.4-spark:compile\r\n[INFO] | | | \\- com.typesafe:config:jar:1.2.1:compile\r\n[INFO] | | +- io.netty:netty:jar:3.8.0.Final:compile\r\n[INFO] | | +- org.spark-project.protobuf:protobuf-java:jar:2.5.0-spark:compile\r\n[INFO] | | \\- org.uncommons.maths:uncommons-maths:jar:1.2.2a:compile\r\n[INFO] | +- org.spark-project.akka:akka-slf4j_2.11:jar:2.3.4-spark:compile\r\n[INFO] | +- org.scala-lang:scala-library:jar:2.11.6:compile\r\n[INFO] | +- org.json4s:json4s-jackson_2.11:jar:3.2.10:compile\r\n[INFO] | | \\- org.json4s:json4s-core_2.11:jar:3.2.10:compile\r\n[INFO] | | +- org.json4s:json4s-ast_2.11:jar:3.2.10:compile\r\n[INFO] | | \\- org.scala-lang:scalap:jar:2.11.0:compile\r\n[INFO] | | \\- org.scala-lang:scala-compiler:jar:2.11.0:compile\r\n[INFO] | | +- org.scala-lang.modules:scala-xml_2.11:jar:1.0.1:compile\r\n[INFO] | | \\- org.scala-lang.modules:scala-parser-combinators_2.11:jar:1.0.1:compile\r\n[INFO] | +- com.sun.jersey:jersey-server:jar:1.9:compile\r\n[INFO] | | \\- asm:asm:jar:3.1:compile\r\n[INFO] | +- com.sun.jersey:jersey-core:jar:1.9:compile\r\n[INFO] | +- org.apache.mesos:mesos:jar:shaded-protobuf:0.21.1:compile\r\n[INFO] | +- io.netty:netty-all:jar:4.0.23.Final:compile\r\n[INFO] | +- com.clearspring.analytics:stream:jar:2.7.0:compile\r\n[INFO] | +- io.dropwizard.metrics:metrics-core:jar:3.1.0:compile\r\n[INFO] | +- io.dropwizard.metrics:metrics-jvm:jar:3.1.0:compile\r\n[INFO] | +- io.dropwizard.metrics:metrics-json:jar:3.1.0:compile\r\n[INFO] | +- io.dropwizard.metrics:metrics-graphite:jar:3.1.0:compile\r\n[INFO] | +- com.fasterxml.jackson.core:jackson-databind:jar:2.4.4:compile\r\n[INFO] | | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.4.0:compile\r\n[INFO] | | \\- com.fasterxml.jackson.core:jackson-core:jar:2.4.4:compile\r\n[INFO] | +- com.fasterxml.jackson.module:jackson-module-scala_2.11:jar:2.4.4:compile\r\n[INFO] | | +- org.scala-lang:scala-reflect:jar:2.11.2:compile\r\n[INFO] | | \\- com.thoughtworks.paranamer:paranamer:jar:2.6:compile\r\n[INFO] | +- org.apache.ivy:ivy:jar:2.4.0:compile\r\n[INFO] | +- oro:oro:jar:2.0.8:compile\r\n[INFO] | +- org.tachyonproject:tachyon-client:jar:0.6.4:compile\r\n[INFO] | | \\- org.tachyonproject:tachyon:jar:0.6.4:compile\r\n[INFO] | +- net.razorvine:pyrolite:jar:4.4:compile\r\n[INFO] | +- net.sf.py4j:py4j:jar:0.8.2.1:compile\r\n[INFO] | \\- org.spark-project.spark:unused:jar:1.0.0:compile\r\n[INFO] \\- junit:junit:jar:4.11:test\r\n[INFO] \\- org.hamcrest:hamcrest-core:jar:1.3:test\r\n[INFO] ------------------------------------------------------------------------\r\n[INFO] BUILD SUCCESS\r\n[INFO] ------------------------------------------------------------------------\r\n[INFO] Total time: 2.987 s\r\n[INFO] Finished at: 2018-04-07T15:50:34+05:30\r\n[INFO] ------------------------------------------------------------------------\r\n<\/code><\/pre>\n\u305f\u3063\u305f2\u3064\u306e\u8ffd\u52a0\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u3001Apache Spark\u306fScala\u81ea\u4f53\u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u305f\u3081\u3001Scala\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u542b\u3080\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5fc5\u8981\u306a\u3059\u3079\u3066\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u53ce\u96c6\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u5165\u529b\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b<\/h2>\n
\u79c1\u305f\u3061\u306fWord Counter\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3059\u308b\u4e88\u5b9a\u306a\u306e\u3067\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306binput.txt\u3068\u3044\u3046\u540d\u524d\u306e\u30b5\u30f3\u30d7\u30eb\u5165\u529b\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u4e2d\u8eab\u306f\u4f55\u3067\u3082\u69cb\u3044\u307e\u305b\u3093\u304c\u3001\u4ee5\u4e0b\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n
Hello, my name is Shubham and I am author at JournalDev . JournalDev is a great website to ready\r\ngreat lessons about Java, Big Data, Python and many more Programming languages.\r\n\r\nBig Data lessons are difficult to find but at JournalDev , you can find some excellent\r\npieces of lessons written on Big Data.\r\n<\/code><\/pre>\n\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u30c6\u30ad\u30b9\u30c8\u306f\u81ea\u7531\u306b\u3054\u5229\u7528\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u69cb\u9020<\/h2>\n
\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30fc\u30c9\u4f5c\u696d\u306b\u9032\u3080\u524d\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5168\u3066\u306e\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u7d42\u3048\u305f\u3089\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u69cb\u9020\u3092\u3053\u3053\u306b\u793a\u3057\u307e\u3057\u3087\u3046\uff1a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u69cb\u9020<\/p>\n
\u30ef\u30fc\u30c9\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u4f5c\u6210\u3059\u308b<\/h2>\n
\u3055\u3042\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4f5c\u6210\u3092\u59cb\u3081\u307e\u3057\u3087\u3046\u3002Big Data\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6271\u3046\u969b\u306b\u306f\u3001import\u6587\u304c\u591a\u304f\u306e\u6df7\u4e71\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u3053\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u4f7f\u7528\u3059\u308b\u3059\u3079\u3066\u306eimport\u6587\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n
import org.apache.spark.SparkConf;\r\nimport org.apache.spark.api.java.JavaPairRDD;\r\nimport org.apache.spark.api.java.JavaRDD;\r\nimport org.apache.spark.api.java.JavaSparkContext;\r\nimport scala.Tuple2;\r\n\r\nimport java.util.Arrays;\r\n<\/code><\/pre>\n\u6b21\u306b\u3001\u79c1\u305f\u3061\u304c\u4f7f\u7528\u3059\u308b\u5b66\u7d1a\u306e\u69cb\u9020\u3092\u8aac\u660e\u3057\u307e\u3059\u3002 (Tsugi ni, watashitachi ga shiyou suru gakky\u016b no k\u014dz\u014d o setsumei shimasu.)<\/p>\n
package com.scdev.sparkdemo;\r\n\r\n...imports...\r\n\r\npublic class WordCounter {\r\n\r\n private static void wordCount(String fileName) {\r\n ...\r\n }\r\n\r\n public static void main(String[] args) {\r\n ...\r\n }\r\n}\r\n<\/code><\/pre>\n\u5168\u3066\u306e\u30ed\u30b8\u30c3\u30af\u306fwordCount\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u306b\u914d\u7f6e\u3055\u308c\u307e\u3059\u3002\u307e\u305a\u3001SparkConf\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u3053\u306e\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u305f\u3081\u306b\u30ad\u30fc\u3068\u5024\u306e\u30da\u30a2\u3068\u3057\u3066\u69d8\u3005\u306aSpark\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u5358\u7d14\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u307f\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n
SparkConf sparkConf = new SparkConf().setMaster(\"local\").setAppName(\"JD Word Counter\");\r\n<\/code><\/pre>\n\u30de\u30b9\u30bf\u30fc\u306f\u30ed\u30fc\u30ab\u30eb\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306flocalhost\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308bSpark\u30b9\u30ec\u30c3\u30c9\u306b\u63a5\u7d9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30a2\u30d7\u30ea\u540d\u306f\u3001Spark\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002\u3053\u3053\u3067\u3001\u3053\u306e\u8a2d\u5b9a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u3066Spark\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
JavaSparkContext sparkContext = new JavaSparkContext(sparkConf);\r\n<\/code><\/pre>\n\u30b9\u30d1\u30fc\u30af\u306f\u3001\u51e6\u7406\u3059\u308b\u3059\u3079\u3066\u306e\u30ea\u30bd\u30fc\u30b9\u3092RDD\uff08Resilient Distributed Datasets\uff09\u3068\u3057\u3066\u8003\u616e\u3057\u3001\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u5206\u6790\u3059\u308b\u305f\u3081\u306b\u975e\u5e38\u306b\u52b9\u679c\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u6574\u7406\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u3053\u306e\u5165\u529b\u30d5\u30a1\u30a4\u30eb\u3092JavaRDD\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n
JavaRDD<String> inputFile = sparkContext.textFile(fileName);\r\n<\/code><\/pre>\n\u4eca\u56de\u306fJava 8\u306eAPI\u3092\u4f7f\u7528\u3057\u3066\u3001JavaRDD\u30d5\u30a1\u30a4\u30eb\u3092\u51e6\u7406\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u306b\u542b\u307e\u308c\u308b\u5358\u8a9e\u3092\u5206\u5272\u3057\u307e\u3059\u3002<\/p>\n
JavaRDD<String> wordsFromFile = inputFile.flatMap(content -> Arrays.asList(content.split(\" \")));\r\n<\/code><\/pre>\n\u518d\u5ea6\u3001\u51fa\u529b\u3068\u3057\u3066\u8868\u3055\u308c\u308b\u5358\u8a9e\u3068\u6570\u5b57\u306e\u30da\u30a2\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u3001Java 8\u306emapToPair\uff08…\uff09\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
JavaPairRDD countData = wordsFromFile.mapToPair(t -> new Tuple2(t, 1)).reduceByKey((x, y) -> (int) x + (int) y);\r\n<\/code><\/pre>\n\u4eca\u3001\u51fa\u529b\u30d5\u30a1\u30a4\u30eb\u3092\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4fdd\u5b58\u3067\u304d\u307e\u3059\u3002<\/p>\n
countData.saveAsTextFile(\"CountData\");\r\n<\/code><\/pre>\n\u6700\u7d42\u7684\u306b\u3001\u79c1\u305f\u3061\u306fmain()\u30e1\u30bd\u30c3\u30c9\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u30dd\u30a4\u30f3\u30c8\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
public static void main(String[] args) {\r\n if (args.length == 0) {\r\n System.out.println(\"No files provided.\");\r\n System.exit(0);\r\n }\r\n wordCount(args[0]);\r\n}\r\n<\/code><\/pre>\n\u5b8c\u5168\u306a\u30d5\u30a1\u30a4\u30eb\u306e\u5168\u4f53\u50cf\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
package com.scdev.sparkdemo;\r\n\r\nimport org.apache.spark.SparkConf;\r\nimport org.apache.spark.api.java.JavaPairRDD;\r\nimport org.apache.spark.api.java.JavaRDD;\r\nimport org.apache.spark.api.java.JavaSparkContext;\r\nimport scala.Tuple2;\r\n\r\nimport java.util.Arrays;\r\n\r\npublic class WordCounter {\r\n\r\n private static void wordCount(String fileName) {\r\n\r\n SparkConf sparkConf = new SparkConf().setMaster(\"local\").setAppName(\"JD Word Counter\");\r\n\r\n JavaSparkContext sparkContext = new JavaSparkContext(sparkConf);\r\n\r\n JavaRDD<String> inputFile = sparkContext.textFile(fileName);\r\n\r\n JavaRDD<String> wordsFromFile = inputFile.flatMap(content -> Arrays.asList(content.split(\" \")));\r\n\r\n JavaPairRDD countData = wordsFromFile.mapToPair(t -> new Tuple2(t, 1)).reduceByKey((x, y) -> (int) x + (int) y);\r\n\r\n countData.saveAsTextFile(\"CountData\");\r\n }\r\n\r\n public static void main(String[] args) {\r\n\r\n if (args.length == 0) {\r\n System.out.println(\"No files provided.\");\r\n System.exit(0);\r\n }\r\n\r\n wordCount(args[0]);\r\n }\r\n}\r\n<\/code><\/pre>\n\u79c1\u305f\u3061\u306f\u4eca\u3001Maven\u305d\u306e\u3082\u306e\u3092\u4f7f\u7528\u3057\u3066\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u9032\u3093\u3067\u3044\u304d\u307e\u3059\u3002<\/p>\n
\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c<\/h2>\n
\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u79fb\u52d5\u3057\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
mvn exec:java -Dexec.mainClass=com.scdev.sparkdemo.WordCounter -Dexec.args=\"input.txt\"\r\n<\/code><\/pre>\n\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3067\u306f\u3001Maven\u306b\u30e1\u30a4\u30f3\u30af\u30e9\u30b9\u306e\u5b8c\u5168\u4fee\u98fe\u540d\u3068\u3001\u5165\u529b\u30d5\u30a1\u30a4\u30eb\u306e\u540d\u524d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30b3\u30de\u30f3\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5185\u306b\u65b0\u3057\u3044\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u958b\u304d\u3001\u305d\u306e\u4e2d\u306b\u3042\u308b\u300cpart-00000.txt\u300d\u3068\u3044\u3046\u540d\u524d\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\u3068\u3001\u305d\u306e\u5185\u5bb9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
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