How to read specific jar from classpath (having multiple version of common-codec in classpath)

smayani — Wed, 18 May 2016 02:18:27 GMT

My application need common-codec1.10 version but on cluster i have 1.4, when i launch yarn application using hadoop_classpath=/home/*/common-codec-1.10.jar:o yarn jar <*.jar> yarn picks up 1.4 first then after it has 1.10. so i am getting exception on method not found. How can tell yarn application to read through full classpath instead to read till 1.4 and stop.

Re: How to read specific jar from classpath (having multiple version of common-codec in classpath)

jyadav — Wed, 18 May 2016 03:12:13 GMT

@Saumil Mayani

Please try setting below parameters and see if that fix the issue.

export HADOOP_USER_CLASSPATH_FIRST=true

export HADOOP_CLASSPATH= /full-jar-path/xyz.jar

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How to read specific jar from classpath (having multiple version of common-codec in classpath)

Re: How to read specific jar from classpath (having multiple version of common-codec in classpath)