I don’t think the Java code is ever a concern. Contributors will more
likely be comfortable following the upstream conventions, even if their
private downstream setup differs.

Yufei

On Tue, Dec 2, 2025 at 4:31 PM Dmitri Bourlatchkov <[email protected]> wrote:

> Thanks for your thoughts, Yufei!
>
> What you wrote resonates with me.
>
> I'd like to clarify, though, whether your points apply only to
> configuration or to java code as well. WDYT?
>
> Thanks,
> Dmitri.
>
> On Tue, Dec 2, 2025 at 4:06 PM Yufei Gu <[email protected]> wrote:
>
> > Thanks Dmitri for the detailed context. I want to offer a different
> > perspective.
> >
> > While I understand the desire to avoid churn for a private downstream
> > deployment, I’m concerned that merging the PR as-is purely to
> accommodate a
> > non-OSS downstream project sets a precedent that is risky for Polaris. If
> > we adopt this pattern, any private downstream project could effectively
> > promote its internal configuration choices into upstream simply by
> > upstreaming code without aligning to Polaris conventions first.
> >
> > For the long-term health of the project, I think we need to maintain
> > consistency and avoid creating special cases that diverge from
> established
> > user-faced conventions(e.g., config naming patterns here). The upstream
> > should remain the place where common conventions are defined, not the
> place
> > where downstream decisions dictate upstream behavior.
> >
> > To avoid blocking this PR while still maintaining our standards, one
> > possible approach is:
> > 1. Align the config names now to the Polaris conventions, as reviewers
> > requested.
> > 2. Let the downstream project map or override its own existing config
> names
> > suggested by Eric.
> >
> > This keeps Polaris consistent, avoids setting an undesirable precedent,
> and
> > still gives the downstream project a clear migration path without
> requiring
> > OSS to inherit private naming decisions.
> >
> > Just my two cents. Happy to discuss further.
> >
> > Yufei
> >
> >
> > On Thu, Nov 27, 2025 at 5:12 PM Eric Maynard <[email protected]>
> > wrote:
> >
> > > I see. By extending the configuration store, I believe that project
> > should
> > > be able to quite easily map between its own configs and the ones that
> > > eventually get merged in Polaris. Or to add its own configs.
> > >
> > > On Thu, Nov 27, 2025 at 5:04 PM Dmitri Bourlatchkov <[email protected]>
> > > wrote:
> > >
> > > > Hi Eric,
> > > >
> > > > This situation here is that some code moves from a private downstream
> > > > project to Polaris. Some of the related config names are already in
> use
> > > > downstream.
> > > >
> > > > Cheers,
> > > > Dmitri.
> > > >
> > > > On Thu, Nov 27, 2025 at 7:35 PM Eric Maynard <
> [email protected]
> > >
> > > > wrote:
> > > >
> > > > > I read through the PR, but I’m a little confused what the
> dependency
> > in
> > > > > question is here. Surely, the project should be mindful not to
> break
> > > > > downstream dependencies of Polaris. But it sounds like the
> contention
> > > > here
> > > > > is around a dependency on unmerged code?
> > > > >
> > > > > If this is the case, that deployment is not depending on Polaris.
> In
> > my
> > > > > view if it depends on particular configs not present in OSS
> Polaris,
> > > > > it would be best served by taking advantage of some of the
> mechanisms
> > > > > available for adding custom configs on top of the ones in OSS
> > Polaris.
> > > > >
> > > > > —EM
> > > > >
> > > > > On Thu, Nov 27, 2025 at 10:53 AM Dmitri Bourlatchkov <
> > [email protected]
> > > >
> > > > > wrote:
> > > > >
> > > > > > Hi All,
> > > > > >
> > > > > > This discussion stems from PR [3135], where having particular
> > config
> > > > > names
> > > > > > was flagged as a concern [1].
> > > > > >
> > > > > > While I agree that aligning configuration names across all
> Polaris
> > > code
> > > > > > modules is a worthy goal, in this particular case it is
> complicated
> > > by
> > > > > > downstream dependencies that already exist on those config names.
> > > > > >
> > > > > > The NoSQL code contributed in this PR is already in use in
> private
> > > > > > environments. At the same time it is being contributed to Polaris
> > in
> > > > the
> > > > > > hole that it would be beneficial to a wide community.
> > > > > >
> > > > > > Making the requested config changes up front would complicate
> > > > > > re-integration of the contributed code from Polaris `main` into
> > > > existing
> > > > > > downstream projects.
> > > > > >
> > > > > > Therefore, I ask the community to allow the existing config names
> > to
> > > be
> > > > > > merged.
> > > > > >
> > > > > > If there are strong concerns about the existing config names, I
> > > propose
> > > > > to
> > > > > > open GH issues for them and address later when backward
> > compatibility
> > > > can
> > > > > > be handled in OSS code for all use cases. This can probably be
> done
> > > > after
> > > > > > some reasonable delay to allow us to first re-integrate the code
> > from
> > > > > > `main` downstream.
> > > > > >
> > > > > > Note that addressing config renames with backward compatibility
> > > > directly
> > > > > in
> > > > > > [3135] would complicate the code and make reviewing it harder.
> The
> > > > > current
> > > > > > PR reflects the code that has already been put to practice.
> > > > > >
> > > > > > We have an existing situation where a downstream project's
> > > requirements
> > > > > for
> > > > > > keeping `polaris-code` java compatibility at version 11 are
> > respected
> > > > [2]
> > > > > > despite having no reasons for holding that module's java version
> > back
> > > > > from
> > > > > > the perspective of binary Polaris Server distributions.
> > > > > >
> > > > > > In general, I believe it is important for the success of the
> > project
> > > to
> > > > > > take downstream builds into consideration as well as users of the
> > > > binary
> > > > > > distribution.
> > > > > >
> > > > > > Please share your thoughts on this matter.
> > > > > >
> > > > > > [1]
> > > https://github.com/apache/polaris/pull/3135#discussion_r2558515915
> > > > > >
> > > > > > [2]
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> https://github.com/apache/polaris/discussions/100#discussioncomment-10267097
> > > > > >
> > > > > > [3135] https://github.com/apache/polaris/pull/3135
> > > > > >
> > > > > > Thanks,
> > > > > > Dmitri.
> > > > > >
> > > > >
> > > >
> > >
> >
>

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