hadoop - override default jvm reuse value -


we have mapred.job.reuse.jvm.num.tasks setting -1(i.e have jvm reuse no limit) in hadoop's mapred-site.xml . want override property in 1 of mapred job. possible override value 1 1 job.

you can override property not marked final in respective configuration.xml file. this

  1. pass commandline argument -d property_name=value.

  2. or configuring in mapred job by

    configuration.set("property_name", "value");


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