Duo Zhang commented on HBASE-17528:

In general I think if a user does know that a scan will be long running then 
specifying a STREAM ReadType will be more efficient?

> Remove the Scan.ReadType flag introduced in HBASE-17045
> -------------------------------------------------------
>                 Key: HBASE-17528
>                 URL: https://issues.apache.org/jira/browse/HBASE-17528
>             Project: HBase
>          Issue Type: Task
>          Components: scan
>    Affects Versions: 2.0.0
>            Reporter: Duo Zhang
>            Assignee: stack
>            Priority: Major
>             Fix For: 2.0.0
>         Attachments: HBASE-17528.branch-2.001.patch
> It is used to keep the old behavior of small scan. We should have a mechanism 
> which selects pread or stream automatically at server side. And in general, 
> we have discussed many times whether it is OK to always use pread for a user 
> scan.

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