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https://issues.apache.org/jira/browse/HADOOP-14176?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Hung updated HADOOP-14176:
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Target Version/s: 2.10.1 (was: 2.10.0)
> distcp reports beyond physical memory limits on 2.X
> ---------------------------------------------------
>
> Key: HADOOP-14176
> URL: https://issues.apache.org/jira/browse/HADOOP-14176
> Project: Hadoop Common
> Issue Type: Bug
> Components: tools/distcp
> Affects Versions: 2.9.0
> Reporter: Fei Hui
> Assignee: Fei Hui
> Priority: Major
> Attachments: HADOOP-14176-branch-2.001.patch,
> HADOOP-14176-branch-2.002.patch, HADOOP-14176-branch-2.003.patch,
> HADOOP-14176-branch-2.004.patch
>
>
> When i run distcp, i get some errors as follow
> {quote}
> 17/02/21 15:31:18 INFO mapreduce.Job: Task Id :
> attempt_1487645941615_0037_m_000003_0, Status : FAILED
> Container [pid=24661,containerID=container_1487645941615_0037_01_000005] is
> running beyond physical memory limits. Current usage: 1.1 GB of 1 GB physical
> memory used; 4.0 GB of 5 GB virtual memory used. Killing container.
> Dump of the process-tree for container_1487645941615_0037_01_000005 :
> |- PID PPID PGRPID SESSID CMD_NAME USER_MODE_TIME(MILLIS)
> SYSTEM_TIME(MILLIS) VMEM_USAGE(BYTES) RSSMEM_USAGE(PAGES) FULL_CMD_LINE
> |- 24661 24659 24661 24661 (bash) 0 0 108650496 301 /bin/bash -c
> /usr/lib/jvm/java/bin/java -Djava.net.preferIPv4Stack=true
> -Dhadoop.metrics.log.level=WARN -Xmx2120m
> -Djava.io.tmpdir=/mnt/disk4/yarn/usercache/hadoop/appcache/application_1487645941615_0037/container_1487645941615_0037_01_000005/tmp
> -Dlog4j.configuration=container-log4j.properties
> -Dyarn.app.container.log.dir=/mnt/disk2/log/hadoop-yarn/containers/application_1487645941615_0037/container_1487645941615_0037_01_000005
> -Dyarn.app.container.log.filesize=0 -Dhadoop.root.logger=INFO,CLA
> -Dhadoop.root.logfile=syslog org.apache.hadoop.mapred.YarnChild 192.168.1.208
> 44048 attempt_1487645941615_0037_m_000003_0 5
> 1>/mnt/disk2/log/hadoop-yarn/containers/application_1487645941615_0037/container_1487645941615_0037_01_000005/stdout
>
> 2>/mnt/disk2/log/hadoop-yarn/containers/application_1487645941615_0037/container_1487645941615_0037_01_000005/stderr
> |- 24665 24661 24661 24661 (java) 1766 336 4235558912 280699
> /usr/lib/jvm/java/bin/java -Djava.net.preferIPv4Stack=true
> -Dhadoop.metrics.log.level=WARN -Xmx2120m
> -Djava.io.tmpdir=/mnt/disk4/yarn/usercache/hadoop/appcache/application_1487645941615_0037/container_1487645941615_0037_01_000005/tmp
> -Dlog4j.configuration=container-log4j.properties
> -Dyarn.app.container.log.dir=/mnt/disk2/log/hadoop-yarn/containers/application_1487645941615_0037/container_1487645941615_0037_01_000005
> -Dyarn.app.container.log.filesize=0 -Dhadoop.root.logger=INFO,CLA
> -Dhadoop.root.logfile=syslog org.apache.hadoop.mapred.YarnChild 192.168.1.208
> 44048 attempt_1487645941615_0037_m_000003_0 5
> Container killed on request. Exit code is 143
> Container exited with a non-zero exit code 143
> {quote}
> Deep into the code , i find that because distcp configuration covers
> mapred-site.xml
> {code}
> <property>
> <name>mapred.job.map.memory.mb</name>
> <value>1024</value>
> </property>
> <property>
> <name>mapred.job.reduce.memory.mb</name>
> <value>1024</value>
> </property>
> {code}
> When mapreduce.map.java.opts and mapreduce.map.memory.mb is setting in
> mapred-default.xml, and the value is larger than setted in
> distcp-default.xml, the error maybe occur.
> we should remove those two configurations in distcp-default.xml
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