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https://issues.apache.org/jira/browse/TEZ-3893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16364329#comment-16364329
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Jonathan Eagles commented on TEZ-3893:
--------------------------------------

[~jlowe], addressed comments in the latest patch

{color:#008000}+1 overall{color}. Here are the results of testing the latest 
attachment
 [http://issues.apache.org/jira/secure/attachment/12910475/TEZ-3893.004.patch]
 against master revision a1f2da8.

{color:#008000}+1 @author{color}. The patch does not contain any @author tags.

{color:#008000}+1 tests included{color}. The patch appears to include 2 new or 
modified test files.

{color:#008000}+1 javac{color}. The applied patch does not increase the total 
number of javac compiler warnings.

{color:#008000}+1 javadoc{color}. There were no new javadoc warning messages.

{color:#008000}+1 findbugs{color}. The patch does not introduce any new 
Findbugs (version 3.0.1) warnings.

{color:#008000}+1 release audit{color}. The applied patch does not increase the 
total number of release audit warnings.

{color:#008000}+1 core tests{color}. The patch passed unit tests in .

Test results: 
[https://builds.apache.org/job/PreCommit-TEZ-Build/2728//testReport/]
 Console output: 
[https://builds.apache.org/job/PreCommit-TEZ-Build/2728//console]

> Tez Local Mode can hang for cases
> ---------------------------------
>
>                 Key: TEZ-3893
>                 URL: https://issues.apache.org/jira/browse/TEZ-3893
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>            Priority: Major
>         Attachments: TEZ-3893.002.patch, TEZ-3893.003.patch, 
> TEZ-3893.004.patch, TEZ-3893.1.patch
>
>
> The scheduler has a race condition where events that notify can be added 
> while the blocking queue is not waiting, but just before waiting. In this 
> case, we can wait forever.



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