JAR runs local unless I execute it after another one.
I am writing an app to automate some benchmarking and I am having a couple of odd issues with SpringHadoop I was hoping someone could help me with. I have each benchmark defined as it own app context...
View ArticleUsing MRv1 vs MRv2
Hi, I'm trying to using Spring Hadoop to execute MRv1 jobs on a 2.0.2-alpha cluster, but am having some challenges. I'm using the basic WordCount type example which works just fine as a regular job. It...
View Articlehadoop job jar="classpath:/hadoop-examples-1.0-SNAPSHOT.jar" FileNotFound
My application context contains: Code: <hdp:job id="myjob" input-path="wordcount/in/" output-path="wordcount/outtttttt/" mapper="org.apache.hadoop.examples.WordCount.TokenizerMapper"...
View ArticleSetting up HBase with Spring Data Hadoop with Maven artifacts
I am pretty new to spring and I am confused:confused: about two things 1.Do I need to have a running installation of Hadoop & Hbase when I import all the dependencies through Maven following the...
View ArticleMap method with or without implements?
Hello In some books (such as Hadoop, The Definitive Guide) the Mapper method is defined like this: public class MapClass extends Mapper extends Mapper<... but in other books (such as Hadoop in...
View ArticleDoes formatting the HDFS filesystem remove my data?
Hello I'm starting to learn Hadoop. If I want to format the HDFS filesystem I need to execute Code: bin/hadoop namenode -format Does it mean that it will format my filesystem, losing everything I have...
View ArticleSpring data - hadoop job submission
I'm trying out Spring Data - Hadoop for executing the MR code on a remote cluster from my local machine's IDE. My bean configuration file viz. applicationContext.xml is as follows : Code: <?xml...
View ArticleClassNotFoundException after job submission
Hi, I'm trying to connect to a remote Hadoop cluster from my local Windows machine via STS. applicationContext.xml : Code: <?xml version="1.0" encoding="UTF-8"?> <beans...
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