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Posted to yarn-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2012/12/18 04:14:13 UTC
[jira] [Commented] (YARN-276) Capacity Scheduler can hang when
submit many jobs concurrently
[ https://issues.apache.org/jira/browse/YARN-276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534585#comment-13534585 ]
Hadoop QA commented on YARN-276:
--------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12561406/YARN-276.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 1 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}. The javadoc tool did not generate any 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.TestApplicationCleanup
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestApplicationLimits
org.apache.hadoop.yarn.server.resourcemanager.applicationsmanager.TestAMRMRPCNodeUpdates
org.apache.hadoop.yarn.server.resourcemanager.TestApplicationMasterLauncher
org.apache.hadoop.yarn.server.resourcemanager.TestRM
org.apache.hadoop.yarn.server.resourcemanager.security.TestApplicationTokens
org.apache.hadoop.yarn.server.resourcemanager.applicationsmanager.TestAMRMRPCResponseId
org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization
org.apache.hadoop.yarn.server.resourcemanager.security.TestClientTokens
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results: https://builds.apache.org/job/PreCommit-YARN-Build/227//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/227//console
This message is automatically generated.
> Capacity Scheduler can hang when submit many jobs concurrently
> --------------------------------------------------------------
>
> Key: YARN-276
> URL: https://issues.apache.org/jira/browse/YARN-276
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 3.0.0, 2.0.1-alpha
> Reporter: nemon lou
> Attachments: YARN-276.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> In hadoop2.0.1,When i submit many jobs concurrently at the same time,Capacity scheduler can hang with most resources taken up by AM and don't have enough resources for tasks.And then all applications hang there.
> The cause is that "yarn.scheduler.capacity.maximum-am-resource-percent" not check directly.Instead ,this property only used for maxActiveApplications. And maxActiveApplications is computed by minimumAllocation (not by Am actually used).
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