[jira] [Created] (HBASE-27646) Should not use pread when prefetching in HFilePreadReader

[Xiaolin Ha (Jira)]

Xiaolin Ha created HBASE-27646:
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             Summary: 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
            Reporter: Xiaolin Ha
            Assignee: Xiaolin Ha


While prefetchOnOpen will read althrough the hfile, we should use stream read 
for it.



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