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https://issues.apache.org/jira/browse/HDDS-7252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-7252:
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Labels: pull-request-available (was: )
> Polled source Datanodes are wrongly not re-considered for balancing in
> Container Balancer
> -----------------------------------------------------------------------------------------
>
> Key: HDDS-7252
> URL: https://issues.apache.org/jira/browse/HDDS-7252
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: SCM
> Reporter: Siddhant Sangwan
> Assignee: Tejaskriya Madhan
> Priority: Major
> Labels: pull-request-available
>
> The FindSourceGreedy class maintains a priority queue of source datanodes.
> This class is used to get the next source DN for balancing. According to
> current design, a datanode can be involved in multiple source->target
> pairings in one iteration of container balancer.
> When FindSourceGreedy#getNextCandidateSourceDataNode() is called during an
> iteration, it polls a DN from the queue. This DN is re queued when
> FindSourceGreedy#increaseSizeLeaving is called. Problem is that if
> ContainerBalancer#moveContainer returns false, then increaseSizeLeaving will
> not be called and the DN doesn't get added back.
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