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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17917) Use pread by default for all user scan
Date Wed, 26 Apr 2017 10:34:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Duo Zhang updated HBASE-17917:
------------------------------
    Attachment: HBASE-17917-v2.patch

Fix TestBlocksScanned. Set the readType to PREAD to avoid the extra cache hit when reopening
store file scanner.

> Use pread by default for all user scan
> --------------------------------------
>
>                 Key: HBASE-17917
>                 URL: https://issues.apache.org/jira/browse/HBASE-17917
>             Project: HBase
>          Issue Type: Sub-task
>          Components: scan
>    Affects Versions: 2.0.0
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>             Fix For: 2.0.0
>
>         Attachments: HBASE-17917.patch, HBASE-17917-v1.patch, HBASE-17917-v2.patch
>
>
> As said in the parent issue. We need some benchmark here first.



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