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Posted to issues@arrow.apache.org by "Ji Liu (JIRA)" <ji...@apache.org> on 2019/07/11 10:30:00 UTC

[jira] [Commented] (ARROW-721) [Java] Read and write record batches to shared memory

    [ https://issues.apache.org/jira/browse/ARROW-721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16882832#comment-16882832 ] 

Ji Liu commented on ARROW-721:
------------------------------

[~wesmckinn] I am interested in this issue, I still don't quite understand and would appreciate if you could help explain what this issue should exactly do. Is something like ArrowFileWriter that write/read record batch from memory mapped file with the given file name (seems not related to ARROW-3191)? or something like implement a ReferenceManager or something else? Thanks a lot! :)

> [Java] Read and write record batches to shared memory
> -----------------------------------------------------
>
>                 Key: ARROW-721
>                 URL: https://issues.apache.org/jira/browse/ARROW-721
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Java
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 1.0.0
>
>
> It would be useful for a Java application to be able to read a record batch as a set of memory mapped byte buffers given a file name and a memory address for the metadata. 



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