[jira] [Resolved] (ARROW-1647) [Plasma] Potential bug when reading/writing messages.

["Philipp Moritz (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-1647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Philipp Moritz resolved ARROW-1647.
-----------------------------------
    Resolution: Fixed

Issue resolved by pull request 1172
[https://github.com/apache/arrow/pull/1172]

> [Plasma] Potential bug when reading/writing messages.
> -----------------------------------------------------
>
>                 Key: ARROW-1647
>                 URL: https://issues.apache.org/jira/browse/ARROW-1647
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Plasma (C++)
>            Reporter: Robert Nishihara
>              Labels: pull-request-available
>
> When we write the "length" field, it is an {{int64_t}}. See https://github.com/apache/arrow/blob/dc129d60fbffbf3a5b71b1f7987f7dab948b3d61/cpp/src/plasma/io.cc#L63.
> However, when we read the "length" field, it is a {{size_t}}. See https://github.com/apache/arrow/blob/dc129d60fbffbf3a5b71b1f7987f7dab948b3d61/cpp/src/plasma/io.cc#L98.
> I'm not sure if this is a bug, but it looks like it might be. And I suspect there is an issue somewhere in this area because a couple Ray users on non-standard platforms have reported issues with a check failure at https://github.com/apache/arrow/blob/dc129d60fbffbf3a5b71b1f7987f7dab948b3d61/cpp/src/plasma/io.cc#L94.
> See https://github.com/ray-project/ray/issues/1008.



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