[jira] [Created] (YARN-3943) Use separate threshold configurations for disk-full detection and disk-not-full detection.

["zhihai xu (JIRA)" <ji...@apache.org>]

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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