[jira] [Commented] (TEZ-3666) Integer overflow in ShuffleVertexManagerBase

["TezQA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-3666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15942762#comment-15942762 ] 

TezQA commented on TEZ-3666:
----------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment
  http://issues.apache.org/jira/secure/attachment/12860597/TEZ-3666.patch
  against master revision e375b9d.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 3.0.1) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The following test timeouts occurred in :
 org.apache.tez.test.TestTezJobs

Test results: https://builds.apache.org/job/PreCommit-TEZ-Build/2351//testReport/
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/2351//console

This message is automatically generated.

> Integer overflow in ShuffleVertexManagerBase
> --------------------------------------------
>
>                 Key: TEZ-3666
>                 URL: https://issues.apache.org/jira/browse/TEZ-3666
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Ming Ma
>            Assignee: Ming Ma
>         Attachments: TEZ-3666.patch
>
>
> In function getExpectedStatsInAtIndex, {{statsInMB[index] * numTasks / numVMEventsReceived}} could cause Integer overflow, for example when statsInMB[index]  == 30000 and numTasks == 200000.



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