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https://issues.apache.org/jira/browse/HBASE-22888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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chenxu updated HBASE-22888:
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Issue Type: Improvement (was: Bug)
> Use separate classe to deal with streaming read and pread
> ---------------------------------------------------------
>
> Key: HBASE-22888
> URL: https://issues.apache.org/jira/browse/HBASE-22888
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: chenxu
> Priority: Major
>
> When switching pread to stream read, new HFileReaderImpl will be create, but
> the two different readers do not share informations with each other. maybe we
> can divide HFileReaderImpl into two different class, such as HFilePreadReader
> and HFileStreamReader. When constructing HFileStreamReader, it will copy some
> stuffs (fileInfo, index, etc) from an already existing Reader, and no need to
> do prefetch operations.
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