zhoujunkun created YARN-1475:
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Summary: Container out of memery
Key: YARN-1475
URL: https://issues.apache.org/jira/browse/YARN-1475
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Affects Versions: 2.2.0
Environment: mapreduce.reduce.java.opts=-Xmx4000m
mapreduce.reduce.shuffle.merge.percent=0.4
mapreduce.reduce.shuffle.parallelcopies=5
mapreduce.reduce.shuffle.input.buffer.percent=0.6
mapreduce.reduce.shuffle.memory.limit.percent=0.17
Reporter: zhoujunkun
when I input 60G of random word, I run wordcount job, the stage of shuffle is
error. the reduce is run 13%.
Container [pid=21073,containerID=container_1385657333160_0001_01_000073] is
running beyond physical memory limits. Current usage: 4.0 GB of 4 GB physical
memory used; 5.5 GB of 13 GB virtual memory used. Killing container.
why do it need so much memory？
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