zhihai xu created YARN-3943:
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Summary: Use separate threshold configurations for disk-full
detection and disk-not-full detection.
Key: YARN-3943
URL: https://issues.apache.org/jira/browse/YARN-3943
Project: Hadoop YARN
Issue Type: Improvement
Components: nodemanager
Reporter: zhihai xu
Assignee: zhihai xu
Use separate threshold configurations to check when disks become full and when
disks become good. Currently the configuration
"yarn.nodemanager.disk-health-checker.max-disk-utilization-per-disk-percentage"
and "yarn.nodemanager.disk-health-checker.min-free-space-per-disk-mb" are used
to check both when disks become full and when disks become good. It will be
better to use two configurations: one is used when disks become full from
not-full and the other one is used when disks become not-full from full. So we
can avoid oscillating frequently.
For example: we can set the one for disk-full detection higher than the one for
disk-not-full detection.
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