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목록전체 글 (649)
DBILITY
https://hadoop.apache.org/docs/r1.2.1/api/org/apache/hadoop/mapreduce/lib/output/MultipleOutputs.html MultipleOutputs (Hadoop 1.2.1 API) static void addNamedOutput(Job job, String namedOutput, Class outputFormatClass, Class keyClass, Class valueClass) Adds a named output for the job. hadoop.apache.org pom.xml 4.0.0 com.dbility.hadoop asa-flight-statistics 1.0.0 hadoop hadoop big-master home/hado..
hadoop command line에 main class를 지정하지 않고 실행할 수 있습니다. 물론, hadoop뿐만 아니라, executable jar에도 적용됩니다. org.apache.maven.plugins maven-jar-plugin 2.3.2 com.dbility.hadoop.multioutput.AsaDelayDriver default-jar package jar
java.io.IOException: Type mismatch in key from map: expected org.apache.hadoop.io.LongWritable, recieved org.apache.hadoop.io.Text위와 같은 오류는 job에 output key와 value의 class 를 미지정시 발생하는 오류로TextOutputFormat사용시 LongWritable Type Key와 Text Type Value가 default입니다.
pom.xml 4.0.0 com.dbility.hadoop wordcount 1.0.0 org.apache.hadoop hadoop-core 1.2.1 provided org.slf4j slf4j-api 1.7.20 provided org.slf4j jcl-over-slf4j 1.7.20 provided ch.qos.logback logback-classic 1.1.7 provided ch.qos.logback logback-access 1.1.7 provided logback.xml %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n WindowsLocalFileSystem.java package com.dbility.hadoop.utils; impor..
백업 svnadmin dump project -r 518 > project.dump svnadmin dump project -r head > project.dump svnadmin dump -r 518:head > project.dump svnadmin dump -r{2016-11-01}:head > prject.dump 복원 svnadmin load prject