[jira] [Assigned] (ARROW-10710) [Rust] [Flight] Example server is broken after tokio upgrade

["Andrew Lamb (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-10710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Lamb reassigned ARROW-10710:
-----------------------------------

    Assignee: Andrew Lamb

> [Rust] [Flight] Example server is broken after tokio upgrade
> ------------------------------------------------------------
>
>                 Key: ARROW-10710
>                 URL: https://issues.apache.org/jira/browse/ARROW-10710
>             Project: Apache Arrow
>          Issue Type: Bug
>            Reporter: Andrew Lamb
>            Assignee: Andrew Lamb
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: Screen Shot 2020-11-25 at 7.10.21 AM.png
>
>          Time Spent: 2h 10m
>  Remaining Estimate: 0h
>
> As pointed out by [~rdettai] on https://github.com/apache/arrow/pull/8697#issuecomment-732936572
> Doing this:
> {code}
> cd rust/arrow-flight; cargo run --example server
> {code}
> results in the following compile error
> {code}
> error: The #[tokio::main] macro requires rt or rt-multi-thread.
>    --> arrow-flight/examples/server.rs:121:1
>     |
> 121 | #[tokio::main]
>     | ^^^^^^^^^^^^^^
>     |
>     = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
> warning: unused import: `tonic::transport::Server`
>   --> arrow-flight/examples/server.rs:21:5
>    |
> 21 | use tonic::transport::Server;
>    |     ^^^^^^^^^^^^^^^^^^^^^^^^
>    |
>    = note: `#[warn(unused_imports)]` on by default
> warning: unused import: `flight_service_server::FlightServiceServer`
>   --> arrow-flight/examples/server.rs:25:43
>    |
> 25 |     flight_service_server::FlightService, flight_service_server::FlightServiceServer,
>    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> error[E0601]: `main` function not found in crate `server`
>    --> arrow-flight/examples/server.rs:18:1
>     |
> 18  | / use std::pin::Pin;
> 19  | |
> 20  | | use futures::Stream;
> 21  | | use tonic::transport::Server;
> ...   |
> 130 | |     Ok(())
> 131 | | }
>     | |_^ consider adding a `main` function to `arrow-flight/examples/server.rs`
> error: aborting due to 2 previous errors; 2 warnings emitted
> {code}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)