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https://issues.apache.org/jira/browse/YARN-5859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15648913#comment-15648913
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Jason Lowe commented on YARN-5859:
----------------------------------
The test output:
{noformat}
2016-11-07 20:00:01,393 INFO [Thread-275] event.AsyncDispatcher
(AsyncDispatcher.java:register(213)) - Registering class
org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationEventType
for class
org.apache.hadoop.yarn.event.EventHandler$$EnhancerByMockitoWithCGLIB$$f197772f
2016-11-07 20:00:01,394 INFO [Thread-275] event.AsyncDispatcher
(AsyncDispatcher.java:register(213)) - Registering class
org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerEventType
for class
org.apache.hadoop.yarn.event.EventHandler$$EnhancerByMockitoWithCGLIB$$f197772f
2016-11-07 20:00:01,403 INFO [Thread-275] nodemanager.DirectoryCollection
(DirectoryCollection.java:<init>(185)) - Disk Validator:
yarn.nodemanager.disk-validator is loaded.
2016-11-07 20:00:01,411 INFO [Thread-275] nodemanager.DirectoryCollection
(DirectoryCollection.java:<init>(185)) - Disk Validator:
yarn.nodemanager.disk-validator is loaded.
2016-11-07 20:00:01,554 INFO [Thread-275] event.AsyncDispatcher
(AsyncDispatcher.java:register(213)) - Registering class
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.event.LocalizationEventType
for class
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService$$EnhancerByMockitoWithCGLIB$$9a46a6a4
2016-11-07 20:00:01,555 INFO [Thread-275]
localizer.ResourceLocalizationService
(ResourceLocalizationService.java:validateConf(232)) - per directory file limit
= 8192
2016-11-07 20:00:01,596 INFO [Thread-275]
localizer.ResourceLocalizationService
(ResourceLocalizationService.java:serviceInit(260)) - Disk Validator:
yarn.nodemanager.disk-validator is loaded.
2016-11-07 20:00:01,598 INFO [Thread-275] event.AsyncDispatcher
(AsyncDispatcher.java:register(213)) - Registering class
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.event.LocalizerEventType
for class
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService$LocalizerTracker
2016-11-07 20:00:01,612 INFO [AsyncDispatcher event handler]
localizer.ResourceLocalizationService
(ResourceLocalizationService.java:addResource(845)) - Downloading public rsrc:{
/tmp, 123, FILE, }
{noformat}
I'm guessing the 200 millisecond timeout is too short sometimes if the unit
test is running in a slow VM or there are other performance hiccups (GC, etc.).
> TestResourceLocalizationService#testParallelDownloadAttemptsForPublicResource
> sometimes fails
> ---------------------------------------------------------------------------------------------
>
> Key: YARN-5859
> URL: https://issues.apache.org/jira/browse/YARN-5859
> Project: Hadoop YARN
> Issue Type: Bug
> Components: test
> Reporter: Jason Lowe
>
> Saw the following test failure:
> {noformat}
> Running
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.TestResourceLocalizationService
> Tests run: 14, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 12.011 sec
> <<< FAILURE! - in
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.TestResourceLocalizationService
> testParallelDownloadAttemptsForPublicResource(org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.TestResourceLocalizationService)
> Time elapsed: 0.586 sec <<< FAILURE!
> java.lang.AssertionError: null
> at org.junit.Assert.fail(Assert.java:86)
> at org.junit.Assert.assertTrue(Assert.java:41)
> at org.junit.Assert.assertTrue(Assert.java:52)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.TestResourceLocalizationService.testParallelDownloadAttemptsForPublicResource(TestResourceLocalizationService.java:2108)
> {noformat}
> The assert occurred at this place in the code:
> {code}
> // Waiting for download to start.
> Assert.assertTrue(waitForPublicDownloadToStart(spyService, 1, 200));
> {code}
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