Kuhu Shukla created YARN-7244:
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Summary: ShuffleHandler is not aware of disks that are added
Key: YARN-7244
URL: https://issues.apache.org/jira/browse/YARN-7244
Project: Hadoop YARN
Issue Type: Bug
Reporter: Kuhu Shukla
Assignee: Kuhu Shukla
The ShuffleHandler permanently remembers the list of "good" disks on NM
startup. If disks later are added to the node then map tasks will start using
them but the ShuffleHandler will not be aware of them. The end result is that
the data cannot be shuffled from the node leading to fetch failures and re-runs
of the map tasks.
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