diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b63da45 --- /dev/null +++ b/.gitignore @@ -0,0 +1,42 @@ +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +### IntelliJ IDEA ### +.idea/modules.xml +.idea/jarRepositories.xml +.idea/compiler.xml +.idea/libraries/ +*.iws +*.iml +*.ipr +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### Eclipse ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ + +### Mac OS ### +.DS_Store \ No newline at end of file diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..13566b8 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,8 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/.idea/gradle.xml b/.idea/gradle.xml new file mode 100644 index 0000000..14746e7 --- /dev/null +++ b/.idea/gradle.xml @@ -0,0 +1,16 @@ + + + + + + \ No newline at end of file diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml new file mode 100644 index 0000000..f515627 --- /dev/null +++ b/.idea/inspectionProfiles/Project_Default.xml @@ -0,0 +1,8 @@ + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100644 index 0000000..32cf4db --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,10 @@ + + + + + + + + + + \ No newline at end of file diff --git a/.idea/palantir-java-format.xml b/.idea/palantir-java-format.xml new file mode 100644 index 0000000..cbcc1cb --- /dev/null +++ b/.idea/palantir-java-format.xml @@ -0,0 +1,6 @@ + + + + + \ No newline at end of file diff --git a/.idea/uiDesigner.xml b/.idea/uiDesigner.xml new file mode 100644 index 0000000..2b63946 --- /dev/null +++ b/.idea/uiDesigner.xml @@ -0,0 +1,124 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..94a25f7 --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/0.csv b/0.csv deleted file mode 100644 index 2f7dfb7..0000000 --- a/0.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:eae61feac01cb36de9d6dd148a5b3fb76ad506fd8b283b20306df16f246e511e -size 3406784 diff --git a/1.csv b/1.csv deleted file mode 100644 index 3a258b0..0000000 --- a/1.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:7b2681409003d07d3ca063eb34339a0cdea9b688d16723b0e284091afd6bf806 -size 7078520 diff --git a/2.csv b/2.csv deleted file mode 100644 index 4cdd100..0000000 --- a/2.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:ea9a50aa300dfe7e766eb419b2a963d31cfe68644acb23f654df7abe852d3a76 -size 10737171 diff --git a/3.csv b/3.csv deleted file mode 100644 index afbe78d..0000000 --- a/3.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:6268fae7b50879a151a6f6de4852e4f39d2e22a8315290e87dcda71f4e10b866 -size 14530705 diff --git a/4.csv b/4.csv deleted file mode 100644 index 9ff08df..0000000 --- a/4.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:b4adf0d42097f1b2c9e68731460c5a7c52cb7ac7238addab7a796817cee9d00b -size 18299520 diff --git a/5.csv b/5.csv deleted file mode 100644 index 3980291..0000000 --- a/5.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:212b6d6b07197921eaedaa271d781431b8bb034c5328622d63231a2967df1702 -size 22053240 diff --git a/6.csv b/6.csv deleted file mode 100644 index 5906dc6..0000000 --- a/6.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:81f65085c6ce29a8f766244dc4b21d41d565ea3d6231b3b1c0b6739d67cd1d53 -size 25790880 diff --git a/7.csv b/7.csv deleted file mode 100644 index df43af3..0000000 --- a/7.csv +++ /dev/null @@ -1,3 +0,0 @@ -version https://git-lfs.github.com/spec/v1 -oid sha256:4e73ff71a37438ec216fc522d77e3902c5670e24a917d0be047ed101dbeea914 -size 29524261 diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..ab83f79 --- /dev/null +++ b/build.gradle @@ -0,0 +1,31 @@ +plugins { + id 'java' +} + +group = 'net.rednite' +version = '1.0-SNAPSHOT' + +repositories { + mavenCentral() +} + +dependencies { + implementation ('org.apache.hadoop:hadoop-common:3.3.6') { + exclude group: 'org.slf4j', module: 'slf4j-reload4j' + } + implementation ('org.apache.hadoop:hadoop-client:3.3.6') { + exclude group: 'org.slf4j', module: 'slf4j-reload4j' + } + + implementation 'org.slf4j:slf4j-simple:2.0.16' + + compileOnly 'org.projectlombok:lombok:1.18.36' + annotationProcessor 'org.projectlombok:lombok:1.18.36' + + testImplementation platform('org.junit:junit-bom:5.10.0') + testImplementation 'org.junit.jupiter:junit-jupiter' +} + +test { + useJUnitPlatform() +} \ No newline at end of file diff --git a/docker-compose.yml b/docker-compose.yml new file mode 100644 index 0000000..e208fd0 --- /dev/null +++ b/docker-compose.yml @@ -0,0 +1,44 @@ +version: '3.8' + +services: + namenode: + image: bde2020/hadoop-namenode:2.0.0-hadoop3.2.1-java8 + container_name: namenode + hostname: namenode + environment: + - CLUSTER_NAME=test-cluster + - CORE_CONF_fs_defaultFS=hdfs://0.0.0.0:9000 # Слушать на всех интерфейсах + - HDFS_CONF_dfs_replication=1 + ports: + - "9870:9870" # Web UI + - "9000:9000" # RPC + volumes: + - namenode-data:/hadoop/dfs/name + networks: + - hadoop + + datanode: + image: bde2020/hadoop-datanode:2.0.0-hadoop3.2.1-java8 + container_name: datanode + hostname: datanode + environment: + - CORE_CONF_fs_defaultFS=hdfs://0.0.0.0:9000 # Слушать на всех интерфейсах + - HDFS_CONF_dfs_replication=1 + ports: + - "9864:9864" # Web UI + - "50010:50010" # Data Transfer Port + - "50020:50020" # IPC Port + - "50075:50075" # HTTP Server Port + volumes: + - datanode-data:/hadoop/dfs/data + depends_on: + - namenode + networks: + - hadoop + +volumes: + namenode-data: + datanode-data: + +networks: + hadoop: \ No newline at end of file diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..249e583 Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..a75c42d --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,6 @@ +#Wed Dec 11 19:44:28 MSK 2024 +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100755 index 0000000..1b6c787 --- /dev/null +++ b/gradlew @@ -0,0 +1,234 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed 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 +# +# https://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. +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit + +APP_NAME="Gradle" +APP_BASE_NAME=${0##*/} + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + +# Collect all arguments for the java command; +# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of +# shell script including quotes and variable substitutions, so put them in +# double quotes to make sure that they get re-expanded; and +# * put everything else in single quotes, so that it's not re-expanded. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..107acd3 --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,89 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto execute + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/metrics.txt b/metrics.txt new file mode 100644 index 0000000..e6e449b --- /dev/null +++ b/metrics.txt @@ -0,0 +1,10 @@ +ms: 9397, salted: false, reducers: 1 +ms: 9543, salted: true, reducers: 1 +ms: 9498, salted: false, reducers: 4 +ms: 11546, salted: false, reducers: 8 +ms: 14414, salted: false, reducers: 16 +ms: 8868, salted: true, reducers: 1 +ms: 12586, salted: true, reducers: 1 +ms: 9678, salted: true, reducers: 1 +ms: 9434, salted: true, reducers: 1 +ms: 8510, salted: true, reducers: 1 diff --git a/results/part-r-00000 b/results/part-r-00000 new file mode 100644 index 0000000..dc840dc --- /dev/null +++ b/results/part-r-00000 @@ -0,0 +1,20 @@ +clothing 4560302171.99 911487 +video games 4560108307.50 913326 +baby products 4541435362.25 907186 +beauty products 4533874327.85 906417 +gardening tools 4531880837.74 905841 +automotive 4529861310.74 904962 +music instruments 4512294466.14 902389 +furniture 4503986763.16 900244 +electronics 4497526631.04 903266 +pet supplies 4488741730.38 896724 +stationery 4481794912.40 898265 +home appliances 4473888361.73 895815 +sports equipment 4469387812.34 894287 +groceries 4466915230.97 895470 +footwear 4465574983.36 894424 +jewelry 4463823670.79 893980 +office equipment 4463564947.38 892370 +toys 4462453654.12 892741 +books 4457620825.95 890948 +health & wellness 4454082892.49 890475 diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..5e8f702 --- /dev/null +++ b/settings.gradle @@ -0,0 +1,2 @@ +rootProject.name = 'parallel-lab4' + diff --git a/src/main/java/ru/brikster/MetricType.java b/src/main/java/ru/brikster/MetricType.java new file mode 100644 index 0000000..49c9805 --- /dev/null +++ b/src/main/java/ru/brikster/MetricType.java @@ -0,0 +1,9 @@ +package ru.brikster; + +public enum MetricType { + REVENUE, // Общая выручка + AVERAGE_PRICE, // Средняя цена товара + ITEMS_SOLD, // Количество проданных товаров + AVERAGE_QUANTITY, // Среднее количество товаров в заказе + TRANSACTIONS // Количество транзакций +} diff --git a/src/main/java/ru/brikster/SalesAnalysisApplication.java b/src/main/java/ru/brikster/SalesAnalysisApplication.java new file mode 100644 index 0000000..282086d --- /dev/null +++ b/src/main/java/ru/brikster/SalesAnalysisApplication.java @@ -0,0 +1,126 @@ +package ru.brikster; + +import lombok.extern.slf4j.Slf4j; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.FileSystem; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.io.Text; +import org.apache.hadoop.mapreduce.Job; +import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; +import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; + +import java.io.IOException; +import java.nio.file.Files; +import java.nio.file.Paths; +import java.nio.file.StandardOpenOption; +import java.util.stream.Stream; + +@Slf4j +public class SalesAnalysisApplication { + + private static final String HDFS_URI = "hdfs://localhost:9000"; + private static final String INPUT_DIR = "/input"; + private static final String OUTPUT_DIR = "/result"; + + private static final boolean USE_SALTED_PARTITIONER = true; + private static final int REDUCERS_COUNT = 1; + + public static void main(String[] args) throws Exception { + if (args.length < 3) { + System.err.println("Usage: SalesAnalysis "); + System.exit(1); + } + + Configuration conf = createConfiguration(args[2]); +// conf.set("mapreduce.input.fileinputformat.split.maxsize", "30000000"); + FileSystem fs = FileSystem.get(conf); + + Path localInputDir = new Path(args[0]); + Path hdfsInputDir = new Path(INPUT_DIR); + Path hdfsOutputDir = new Path(OUTPUT_DIR); + Path localOutputDir = new Path(args[1]); + + setupDirectories(fs, hdfsInputDir, hdfsOutputDir, localOutputDir); + + try (Stream files = Files.list(Paths.get(localInputDir.toString()))) { + files.forEach(file -> { + try { + Path hdfsFilePath = new Path(hdfsInputDir, file.getFileName().toString()); + fs.copyFromLocalFile(false, true, new Path(file.toString()), hdfsFilePath); + } catch (IOException e) { + log.error("Error copying file to HDFS: {}", file, e); + } + }); + } + + Job job = configureJob(conf, args[2], hdfsInputDir, hdfsOutputDir); + long startMs = System.currentTimeMillis(); + boolean success = job.waitForCompletion(true); + long totalMs = System.currentTimeMillis() - startMs; + + if (success) { + fs.copyToLocalFile(false, hdfsOutputDir, localOutputDir, true); + Files.writeString(Paths.get("metrics.txt"), "ms: " + totalMs + ", salted: " + USE_SALTED_PARTITIONER + ", reducers: " + REDUCERS_COUNT +"\n", + StandardOpenOption.APPEND, + StandardOpenOption.CREATE); + } else { + System.err.println("Job failed!"); + System.exit(1); + } + } + + private static Configuration createConfiguration(String metricType) { + Configuration conf = new Configuration(); + conf.set("metric.type", metricType.toUpperCase()); + conf.set("fs.defaultFS", HDFS_URI); + return conf; + } + + private static void setupDirectories(FileSystem fs, Path inputDir, Path outputDir, Path localOutputDir) throws IOException { + if (!fs.exists(inputDir)) { + fs.mkdirs(inputDir); + } + if (fs.exists(outputDir)) { + fs.delete(outputDir, true); + } + var localOutputDirPath = Paths.get(localOutputDir.toString()); + if (Files.exists(localOutputDirPath)) { + try (var files = Files.walk(localOutputDirPath)) { + files.forEach(path -> { + try { + if (!Files.isDirectory(path)) { + Files.delete(path); + } + } catch (IOException e) { + throw new RuntimeException(e); + } + }); + } + Files.delete(localOutputDirPath); + } + } + + private static Job configureJob(Configuration conf, String metricType, Path inputDir, Path outputDir) + throws IOException { + Job job = Job.getInstance(conf, "sales analysis - " + metricType); + job.setJarByClass(SalesAnalysisApplication.class); + + job.setMapperClass(SalesMapper.class); + job.setMapOutputKeyClass(Text.class); + job.setMapOutputValueClass(SalesMetric.class); + + job.setReducerClass(SalesReducer.class); + job.setOutputKeyClass(Text.class); + job.setOutputValueClass(Text.class); + + if (USE_SALTED_PARTITIONER) { + job.setPartitionerClass(SaltedPartitioner.class); + } + job.setNumReduceTasks(REDUCERS_COUNT); + + FileInputFormat.addInputPath(job, inputDir); + FileOutputFormat.setOutputPath(job, outputDir); + + return job; + } +} \ No newline at end of file diff --git a/src/main/java/ru/brikster/SalesMapper.java b/src/main/java/ru/brikster/SalesMapper.java new file mode 100644 index 0000000..99a02bb --- /dev/null +++ b/src/main/java/ru/brikster/SalesMapper.java @@ -0,0 +1,61 @@ +package ru.brikster; + +import lombok.extern.slf4j.Slf4j; +import org.apache.hadoop.io.Text; +import org.apache.hadoop.mapreduce.Mapper; + +import java.io.IOException; + +@Slf4j +public class SalesMapper extends Mapper { + + private MetricType metricType; + + @Override + protected void setup(Context context) { + metricType = MetricType.valueOf(context.getConfiguration() + .get("metric.type", "REVENUE")); + } + + @Override + public void map(Object key, Text value, Context context) throws IOException, InterruptedException { + if (value.toString().startsWith("transaction_id")) { + return; + } + + String[] fields = value.toString().split(","); + if (fields.length == 5) { + String id = fields[0]; + String category = fields[2]; + double price = Double.parseDouble(fields[3]); + int quantity = Integer.parseInt(fields[4]); + double revenue = price * quantity; + + Text categoryKey = new Text(category); + + SalesMetric metric = new SalesMetric(); + switch (metricType) { + case REVENUE: + metric.set(id, category, revenue, quantity); + break; + case AVERAGE_PRICE: + metric.set(id, category, price, quantity); + break; + case ITEMS_SOLD: + metric.set(id, category, quantity, quantity); + break; + case AVERAGE_QUANTITY: + metric.set(id, category, quantity, 1); + break; + case TRANSACTIONS: + metric.set(id, category, 1, quantity); + break; + default: + return; + } + + context.write(categoryKey, metric); + } + } + +} diff --git a/src/main/java/ru/brikster/SalesMetric.java b/src/main/java/ru/brikster/SalesMetric.java new file mode 100644 index 0000000..daccbb8 --- /dev/null +++ b/src/main/java/ru/brikster/SalesMetric.java @@ -0,0 +1,52 @@ +package ru.brikster; + +import lombok.Getter; +import lombok.ToString; +import lombok.extern.slf4j.Slf4j; +import org.apache.hadoop.io.*; + +import java.io.DataInput; +import java.io.DataOutput; +import java.io.IOException; + +@Slf4j +@ToString +@Getter +public class SalesMetric implements Writable { + + private final Text id; + private final Text category; + private final DoubleWritable value; + private final IntWritable quantity; + + public SalesMetric() { + this.id = new Text(); + this.category = new Text(); + this.value = new DoubleWritable(); + this.quantity = new IntWritable(); + } + + public void set(String id, String category, double value, int quantity) { + this.id.set(id); + this.category.set(category); + this.value.set(value); + this.quantity.set(quantity); + } + + @Override + public void write(DataOutput out) throws IOException { + id.write(out); + category.write(out); + value.write(out); + quantity.write(out); + } + + @Override + public void readFields(DataInput in) throws IOException { + id.readFields(in); + category.readFields(in); + value.readFields(in); + quantity.readFields(in); + } + +} diff --git a/src/main/java/ru/brikster/SalesReducer.java b/src/main/java/ru/brikster/SalesReducer.java new file mode 100644 index 0000000..62c1e1e --- /dev/null +++ b/src/main/java/ru/brikster/SalesReducer.java @@ -0,0 +1,77 @@ +package ru.brikster; + +import lombok.extern.slf4j.Slf4j; +import org.apache.hadoop.io.Text; +import org.apache.hadoop.mapreduce.Reducer; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.Comparator; +import java.util.List; + +@Slf4j +public class SalesReducer extends Reducer { + + private MetricType metricType; + private List results; + + @Override + protected void setup(Context context) { + metricType = MetricType.valueOf(context.getConfiguration().get("metric.type", "REVENUE")); + results = new ArrayList<>(); + } + + @Override + public void reduce(Text key, Iterable values, Context context) { + double totalValue = 0; + double totalCount = 0; + double totalQuantity = 0; + + for (SalesMetric val : values) { + totalValue += val.getValue().get(); + totalCount += 1; + totalQuantity += val.getQuantity().get(); + } + + double metric; + + String result = switch (metricType) { + case REVENUE -> { + metric = totalValue; + yield String.format("%.2f\t%.0f", totalValue, totalQuantity); + } + case AVERAGE_PRICE -> { + metric = totalValue / totalCount; + yield String.format("%.2f (avg price per item)", totalValue / totalCount); + } + case ITEMS_SOLD -> { + metric = totalValue; + yield String.format("%.0f items", totalValue); + } + case AVERAGE_QUANTITY -> { + metric = totalValue / totalCount; + yield String.format("%.2f (avg items per transaction)", totalValue / totalCount); + } + case TRANSACTIONS -> { + metric = totalValue; + yield String.format("%.0f transactions", totalValue); + } + }; + + results.add(new Result(new Text(key.toString()), metric, result)); + } + + @Override + protected void cleanup(Context context) throws IOException, InterruptedException { + results.sort(Comparator.comparingDouble(Result::value).reversed()); + + for (Result result : results) { + context.write(result.category(), new Text(result.output())); + } + + this.results.clear(); + } + + private record Result(Text category, double value, String output) {} + +} diff --git a/src/main/java/ru/brikster/SaltedPartitioner.java b/src/main/java/ru/brikster/SaltedPartitioner.java new file mode 100644 index 0000000..20d72d4 --- /dev/null +++ b/src/main/java/ru/brikster/SaltedPartitioner.java @@ -0,0 +1,14 @@ +package ru.brikster; + +import org.apache.hadoop.io.Text; +import org.apache.hadoop.mapreduce.Partitioner; + +public class SaltedPartitioner extends Partitioner { + + @Override + public int getPartition(Text key, SalesMetric value, int numReduceTasks) { + String saltedKey = (Math.random() * 10) + key.toString(); + return Math.abs(saltedKey.hashCode() % numReduceTasks); + } + +} \ No newline at end of file