Bibin A Chundatt created YARN-4254:
--------------------------------------
Summary: ApplicationAttempt stuck for ever due to
UnknowHostexception
Key: YARN-4254
URL: https://issues.apache.org/jira/browse/YARN-4254
Project: Hadoop YARN
Issue Type: Bug
Reporter: Bibin A Chundatt
Assignee: Bibin A Chundatt
Scenario
=======
1. RM HA and 5 NMs available in cluster and are working fine
2. Add one more NM to the same cluster but RM /etc/hosts not updated.
3. Submit application to the same cluster
If Am get allocated to the newly added NM the *application attempt will get
stuck for ever*.User will not get to know why the same happened.
Impact
1.RM logs gets overloaded with exception
2.Application gets stuck for ever.
Handling suggestion YARN-261 allows for Fail application attempt .
If we fail the same next attempt could get assigned to another NM.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
