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https://issues.apache.org/jira/browse/HDDS-14213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sammi Chen resolved HDDS-14213.
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Fix Version/s: 2.2.0
Resolution: Fixed
> DiskBalancer fails to balance when destination volume exists but no source
> volume exceeds threshold
> ---------------------------------------------------------------------------------------------------
>
> Key: HDDS-14213
> URL: https://issues.apache.org/jira/browse/HDDS-14213
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Gargi Jaiswal
> Assignee: Gargi Jaiswal
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.2.0
>
>
> As now https://issues.apache.org/jira/browse/HDDS-14175 this PR is merged, we
> need to handle second case as below:
> (1) one volume beyond threshold and no volumes under threshold{*}(already
> handled){*}
> {code:java}
> Disk1, 30, 100
> Disk2, 30, 100
> Disk3, 40, 100100 / 300 = 33.3%
> Disk1: 30%
> Disk2: 30%
> Disk3: 40%
> Threshold: 10
> Disk utilization range (23.3, 43.3)
> Out range volume list: NULL
> Threshold: 5
> Disk utilization range (28.3, 38.3)
> Out range volume list: Disk3 {code}
> (2) one volume under threshold and no volumes beyond threshold
> {code:java}
> Disk1, 30, 100
> Disk2, 30, 100
> Disk3, 20, 10080 / 300 = 26.7%
> Disk1: 30%
> Disk2: 30%
> Disk3: 20%
> Threshold: 10
> Disk utilization range (16.7, 36.7)
> Out range volume list: NULL
> Threshold: 5
> Disk utilization range (21.7, 31.7)
> Out range volume list: Disk3 {code}
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