Karthik Kambatla created YARN-6210:
--------------------------------------
Summary: FS: Node reservations can interfere with preemption
Key: YARN-6210
URL: https://issues.apache.org/jira/browse/YARN-6210
Project: Hadoop YARN
Issue Type: Bug
Components: fairscheduler
Affects Versions: 2.9.0
Reporter: Karthik Kambatla
Assignee: Karthik Kambatla
Today, on a saturated cluster, apps with pending demand reserve nodes. A new
app might not be able to preempt resources because these nodes are already
reserved. This can be reproduced by the example in YARN-6151.
Since node reservations are to prevent starvation of apps requesting large
containers, triggering these reservations only on starved applications would
avoid this situation.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
