Omkar Vinit Joshi created YARN-547:
--------------------------------------
Summary: New resource localization is tried even when Localized
Resource is in DOWNLOADING state
Key: YARN-547
URL: https://issues.apache.org/jira/browse/YARN-547
Project: Hadoop YARN
Issue Type: Bug
Reporter: Omkar Vinit Joshi
At present when multiple containers try to request a localized resource
1) If the resource is not present then first it is created and Resource
Localization starts ( LocalizedResource is in DOWNLOADING state)
2) Now if in this state multiple ResourceRequestEvents come in then
ResourceLocalizationEvents are fired for all of them.
Most of the times it is not resulting into a duplicate resource download but
there is a race condition present there.
Location : ResourceLocalizationService.addResource .. addition of the request
into "attempts" in case of an event already exists.
The root cause for this is the presence of FetchResourceTransition on receiving
ResourceRequestEvent in DOWNLOADING state.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
