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https://issues.apache.org/jira/browse/HDFS-17247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-17247:
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Labels: pull-request-available (was: )
> Improve AvailableSpaceRackFaultTolerantBlockPlacementPolicy logic
> ------------------------------------------------------------------
>
> Key: HDFS-17247
> URL: https://issues.apache.org/jira/browse/HDFS-17247
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namanode
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
> Labels: pull-request-available
>
> The AvailableSpaceBlockPlacementPolicy has made some optimizations such as
> HDFS-14578,HDFS-17210,
> the AvailableSpaceRackFaultTolerantBlockPlacementPolicy need keep same logics
> of optimization same as ASBPP.
> Currently considering implementing a public class, such as
> AvailableSpaceBlockPlacementPolicyUtils, and abstract some public methods
> such as
> {code:java}
> chooseLocalStorage, swapStorageTypes, select, compareDataNode
> {code}
> the AvailableSpaceBlockPlacementPolicy and
> AvailableSpaceRackFaultTolerantBlockPlacementPolicy can call related methods
> in AvailableSpaceBlockPlacementPolicyUtils.
> If there are related optimizations later, they can be modified based on
> AvailableSpaceBlockPlacementPolicyUtils.
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