-1, 

The pull request at https://github.com/apache/spark/pull/49604 introduced a 
connection-related example module and successfully merged it into branch-4.0, 
which is a commendable achievement. 

However, it is recommended that this example module should rely on the snapshot 
version of its corresponding development branch. Subsequently, after the 
release of a new version, it should be updated to depend on the latest released 
version of that branch, rather than a historical or preview release version 
(for instance, in the v4.0.0 tag, it should depend on Spark 4.0.0 instead of 
4.0.0-preview2). It appears that the pull request at 
https://github.com/apache/spark/pull/50187 is currently discussing and 
addressing this issue; however, it is still in progress. I firmly believe that 
this issue should be resolved before the release of Apache Spark 4.0.0.

Best regards,
Jie Yang

On 2025/03/23 01:26:43 Ángel Álvarez Pascua wrote:
> Great to hear that!
> 
> Fortunately, I was waiting for someone to answer and hadn't looked at it
> yet.
> 
> Seems a quite straightforward solution for an issue that shouldn't have to
> exist if the right unit test had been implemented. What do you think about
> adding a test to check this issue doesn't happen again?
> 
> 
> 
> I'm planning to write an article about Spark Connect, so ... thanks again
> for providing the project to start playing around.
> 
> El dom, 23 mar 2025, 2:01, Bobby <wbo4...@gmail.com> escribió:
> 
> > Thx @Ángel <angel.alvarez.pas...@gmail.com> , I had a PR
> > https://github.com/apache/spark/pull/50334 to fix it. Please help review.
> >
> > Ángel Álvarez Pascua <angel.alvarez.pas...@gmail.com> 于2025年3月22日周六
> > 16:27写道:
> >
> >> Is anyone looking into this issue? If not, I'd like to try fixing it.
> >> I've never tried out Spark Connect, so... 2x1! (way better than spending
> >> the weekend binge-watching on Netflix 😅🤣).
> >>
> >> @Bobby <wbo4...@gmail.com> , thanks a lot, not only for reporting the
> >> issue but also for providing a time-saving project for testing.
> >>
> >> El sáb, 22 mar 2025 a las 1:11, Bobby (<wbo4...@gmail.com>) escribió:
> >>
> >>> I think https://issues.apache.org/jira/browse/SPARK-51537 should be
> >>> fixed before 4.0.0 release, or else, the executor side will not use global
> >>> jars added by `--jars` in the connect mode, which could result in
> >>> deserialization exceptions.
> >>>
> >>
> 

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