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https://issues.apache.org/jira/browse/HDFS-10939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daryn Sharp updated HDFS-10939:
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Attachment: HDFS-10939.2.patch
Address kihwal's comments. Had to add another fault injector method to keep
the implementation details encapsulated in a single method.
> Reduce performance penalty of encryption zones
> ----------------------------------------------
>
> Key: HDFS-10939
> URL: https://issues.apache.org/jira/browse/HDFS-10939
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Affects Versions: 2.7
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-10939.1.patch, HDFS-10939.2.patch, HDFS-10939.patch
>
>
> The encryption zone APIs should be optimized to extensively use IIPs to
> eliminate path resolutions. The performance penalties incurred by common
> operations like creation of file statuses may be reduced by more extensive
> short-circuiting of EZ lookups when no EZs exist. All file creates should
> not be subjected to the multi-stage locking performance penalty required only
> for EDEK generation.
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