[jira] [Commented] (ARROW-9586) [FlightRPC][Java] Allow using a per-call Arrow allocator

["David Li (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-9586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17197302#comment-17197302 ] 

David Li commented on ARROW-9586:
---------------------------------

I will try to get to this for 2.0 but it may not make it.

> [FlightRPC][Java] Allow using a per-call Arrow allocator
> --------------------------------------------------------
>
>                 Key: ARROW-9586
>                 URL: https://issues.apache.org/jira/browse/ARROW-9586
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: FlightRPC, Java
>            Reporter: David Li
>            Assignee: David Li
>            Priority: Major
>             Fix For: 2.0.0
>
>
> We've been running into issues with Flight and gRPC leaking direct memory at scale. One thing we'd like to do is have a (child) allocator per DoGet/DoPut call, so we can more accurately track memory usage. We have a candidate implementation that is rather messy, but can be upstreamed as part of flight-grpc.
> This also requires changes to _ensure_ all Arrow resources are cleaned up before we notify gRPC that the call has finished.



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