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https://issues.apache.org/jira/browse/HBASE-27646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaolin Ha resolved HBASE-27646.
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Resolution: Fixed
Merged to branch-2+ and master, thanks [~bbeaudreault] for reviewing.
> Should not use pread when prefetching in HFilePreadReader
> ---------------------------------------------------------
>
> Key: HBASE-27646
> URL: https://issues.apache.org/jira/browse/HBASE-27646
> Project: HBase
> Issue Type: Improvement
> Components: Performance
> Affects Versions: 2.5.3
> Reporter: Xiaolin Ha
> Assignee: Xiaolin Ha
> Priority: Minor
>
> While prefetchOnOpen will read althrough the hfile, we should use stream read
> for it.
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