[
https://issues.apache.org/jira/browse/YARN-1913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14015823#comment-14015823
]
Hadoop QA commented on YARN-1913:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12647968/YARN-1913.patch
against trunk revision .
{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 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) 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 patch failed these unit tests in
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.TestMaxRunningAppsEnforcer
org.apache.hadoop.yarn.server.resourcemanager.scheduler.TestSchedulerApplicationAttempt
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.TestFSSchedulerApp
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/3890//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/3890//console
This message is automatically generated.
> With Fair Scheduler, cluster can logjam when all resources are consumed by AMs
> ------------------------------------------------------------------------------
>
> Key: YARN-1913
> URL: https://issues.apache.org/jira/browse/YARN-1913
> Project: Hadoop YARN
> Issue Type: Bug
> Components: scheduler
> Affects Versions: 2.3.0
> Reporter: bc Wong
> Assignee: Wei Yan
> Attachments: YARN-1913.patch, YARN-1913.patch, YARN-1913.patch,
> YARN-1913.patch, YARN-1913.patch, YARN-1913.patch, YARN-1913.patch,
> YARN-1913.patch, YARN-1913.patch, YARN-1913.patch
>
>
> It's possible to deadlock a cluster by submitting many applications at once,
> and have all cluster resources taken up by AMs.
> One solution is for the scheduler to limit resources taken up by AMs, as a
> percentage of total cluster resources, via a "maxApplicationMasterShare"
> config.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
