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

["Apache Arrow JIRA Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-9586?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Arrow JIRA Bot reassigned ARROW-9586:
--------------------------------------------

    Assignee: David Li  (was: Apache Arrow JIRA Bot)

> [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
>              Labels: pull-request-available
>             Fix For: 2.0.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> 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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