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https://issues.apache.org/jira/browse/MAPREDUCE-6353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karthik Kambatla updated MAPREDUCE-6353:
----------------------------------------
Resolution: Fixed
Fix Version/s: 2.8.0
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Thanks Anubhav for reporting and fixing this. Just committed this to trunk and
branch-2.
> Divide by zero error in MR AM when calculating available containers
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-6353
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6353
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mr-am
> Reporter: Anubhav Dhoot
> Assignee: Anubhav Dhoot
> Fix For: 2.8.0
>
> Attachments: MAPREDUCE-6353.001.patch, MAPREDUCE-6353.002.patch,
> MAPREDUCE-6353.002.patch
>
>
> When running a sleep job with zero CPU vcores i see the following exception
> 2015-04-30 06:41:06,954 ERROR [RMCommunicator Allocator]
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: ERROR IN
> CONTACTING RM.
> java.lang.ArithmeticException: / by zero
> at
> org.apache.hadoop.mapreduce.v2.app.rm.ResourceCalculatorUtils.computeAvailableContainers(ResourceCalculatorUtils.java:38)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator$ScheduledRequests.assign(RMContainerAllocator.java:947)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator$ScheduledRequests.access$200(RMContainerAllocator.java:840)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.heartbeat(RMContainerAllocator.java:247)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator$1.run(RMCommunicator.java:282)
> at java.lang.Thread.run(Thread.java:745)
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