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Posted to issues@arrow.apache.org by "Dimitri Vorona (JIRA)" <ji...@apache.org> on 2018/10/31 07:42:00 UTC

[jira] [Updated] (ARROW-3660) [C++] Don't unnecessaryly lock MemoryMappedFile for resizing in readonly files

     [ https://issues.apache.org/jira/browse/ARROW-3660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dimitri Vorona updated ARROW-3660:
----------------------------------
    Summary: [C++] Don't unnecessaryly lock MemoryMappedFile for resizing in readonly files  (was: [C++] Don't unnecessary lock MemoryMappedFile for resizing in readonly files)

> [C++] Don't unnecessaryly lock MemoryMappedFile for resizing in readonly files
> ------------------------------------------------------------------------------
>
>                 Key: ARROW-3660
>                 URL: https://issues.apache.org/jira/browse/ARROW-3660
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>    Affects Versions: 0.11.0
>            Reporter: Dimitri Vorona
>            Priority: Minor
>              Labels: pull-request-available
>
> We lock the resize_lock_ on every read, even though it's not possible to resize read-only files. 
>  
> This also inlines the ResizeMap method into Resize.



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