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https://issues.apache.org/jira/browse/HDDS-17449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chi-Hsuan Huang updated HDDS-17449:
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Fix Version/s: 2.3.0
> Optimize per-datanode block counting in SCM block deletion
> ----------------------------------------------------------
>
> Key: HDDS-17449
> URL: https://issues.apache.org/jira/browse/HDDS-17449
> Project: Apache Ozone
> Issue Type: Improvement
> Components: SCM
> Reporter: Shuo Huang
> Assignee: Shuo Huang
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.3.0
>
>
> While selecting deleted block transactions, SCM checks the number of blocks
> already selected for each datanode.
>
> DatanodeDeletedBlockTransactions#getNumberOfBlocksForDatanode recalculates
> the count by scanning all transactions already selected for the datanode.
> Repeating this for every candidate transaction makes transaction selection
> quadratic as the batch grows.
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