I agree with Holden that withdrawing a veto is always better than
overriding it: it's healthier for the community. Dongjoon, would you be
willing to reconsider your veto given the current as-is state of the 4.0.0
release (the breaking change will be reverted)?

On Mon, Mar 17, 2025 at 10:36 AM Wenchen Fan <cloud0...@gmail.com> wrote:

> I've created the revert PR for branch-4.0:
> https://github.com/apache/spark/pull/50291 . We can merge PRs with lazy
> consensus but it's clear that this breaking change PR has failed to achieve
> consensus.
>
> I hope we now have a clear foundation for discussing solutions. As it
> stands, the misnamed configuration will be released in 4.0.0. I like
> Jungtaek’s proposal to deprecate it, but the decision is up to the
> community.
>
> On Mon, Mar 17, 2025 at 10:19 AM Jungtaek Lim <
> kabhwan.opensou...@gmail.com> wrote:
>
>> OK, let's be super honest.
>>
>> Again, I think you agree that *"both" proposals are "technically"
>> correct (or one side can't have a strong theoretical evidence to counter
>> the other side)*. So this naturally has a fate to have more supporters
>> to get to the end. It's very easy for me to VETO to his proposal (although
>> I don't have a binding vote, I think I have people who agree with me) if we
>> think we want to definitely expand the interpretation of VETO criteria in
>> the Apache Voting Process.
>>
>> You said it is up to the PMC member exercising the veto to use their
>> judgement, but definitely, it must not be used to force the community to
>> follow his proposal. The major argument here is, he can just VETO to any
>> proposal to retain the codebase as the way he prefers to, which I don't
>> believe is a correct usage of VETO.
>>
>> If we just revert the change of removal of config, this is "really"
>> neutral neither my proposal nor his proposal. Do we really want to do so?
>>
>> On Mon, Mar 17, 2025 at 10:55 AM Holden Karau <holden.ka...@gmail.com>
>> wrote:
>>
>>> First let me start with my key hope:
>>>
>>> We find a way to compromise and have the veto withdrawn rather than
>>> overridden.
>>>
>>> From what I understand of the change in question:
>>>
>>> So my understanding, and I may be over simplifying here but there are
>>> (at least) three technical paths forward (migration guide, legacy config
>>> with vendor string in it, non-vendor specific string legacy config), a PMC
>>> member vetoed one of them (named vendor legacy config) because he thought a
>>> different approach was better (migration guide) as they were worried that
>>> carrying that legacy config forward would encourage bad coding standards
>>> (eg we would add more vendor named config flags). To me that seems like a
>>> valid concern.
>>>
>>> My reasoning:
>>>
>>> Thinking back at other VETOs that I’ve been involved with in this
>>> project (DSV2, graceful decom, etc) this seems to meet the same bar. Hell
>>> we’ve had plenty of vetos that didn’t offer an alternative.
>>>
>>> My personal understanding of where the bar for “
>>> a technical justification showing why the change is bad” concern is
>>> pretty much “any not factually incorrect reasoning”, the text doesn’t have
>>> any particular “bar” for the level of “badness” and I think it’s up to the
>>> PMC member exercising the veto to use their judgement.
>>>
>>> In closing, I feel like the path we’re going down (overriding a veto) is
>>> not healthy for the project.
>>>
>>> Twitter: https://twitter.com/holdenkarau
>>> Fight Health Insurance: https://www.fighthealthinsurance.com/
>>> <https://www.fighthealthinsurance.com/?q=hk_email>
>>> Books (Learning Spark, High Performance Spark, etc.):
>>> https://amzn.to/2MaRAG9  <https://amzn.to/2MaRAG9>
>>> YouTube Live Streams: https://www.youtube.com/user/holdenkarau
>>> Pronouns: she/her
>>>
>>>
>>> On Sun, Mar 16, 2025 at 6:28 PM Jungtaek Lim <
>>> kabhwan.opensou...@gmail.com> wrote:
>>>
>>>> Holden, I believe you should already know "both" approaches are
>>>> "technically" correct. It's not about which one you have a preference for,
>>>> no, this VOTE is not intended to extend the debate.
>>>>
>>>> Again, what you are encouraged to do here is, not exposing your
>>>> preference of two approaches, but exposing your "technically valid" concern
>>>> of my approach, backed by Dongjoon's veto (most likely you want to quote
>>>> Dongjoon's post). This is very simple and I'm not sure you are doing
>>>> exactly what the VOTE requires.
>>>>
>>>> On Mon, Mar 17, 2025 at 6:32 AM Holden Karau <holden.ka...@gmail.com>
>>>> wrote:
>>>>
>>>>> -1 (binding) — to me it doesn’t matter that the cost is low if the
>>>>> objection is technical then I think we need to respect the veto. There is 
>>>>> a
>>>>> fundamental disagreement as to what the correct technical way to address
>>>>> this problem is (removal + documentation vs legacy config) and a PMC 
>>>>> member
>>>>> has vetoed  the legacy config option.
>>>>>
>>>>> I think I disagree with Mark on the assertion that the veto needs to
>>>>> have “substantial technical concern,” but rather a valid concern. I think
>>>>> in addition to the veto they’ve also gone above and beyond providing
>>>>> alternative ways to accomplish this.
>>>>>
>>>>> On a personal level:
>>>>>
>>>>> I am optimistic we can unblock the release but I think it’s important
>>>>> to err on the side of respecting the veto here in the interest of 
>>>>> perceived
>>>>> fairness *especially* because of vendor aspects.
>>>>>
>>>>> To be clear I’ve worked at most of these companies (and many of the
>>>>> people) and I’m not ascribing malice to anyone in this, I think mistakes
>>>>> happen (god knows I’ve had a fair share). I think we’re all doing our best
>>>>> here and would ask that we show everyone understanding regardless of the
>>>>> outcome.
>>>>>
>>>>> Sending hugs and good vibes to y’all.
>>>>>
>>>>> Twitter: https://twitter.com/holdenkarau
>>>>> Fight Health Insurance: https://www.fighthealthinsurance.com/
>>>>> <https://www.fighthealthinsurance.com/?q=hk_email>
>>>>> Books (Learning Spark, High Performance Spark, etc.):
>>>>> https://amzn.to/2MaRAG9  <https://amzn.to/2MaRAG9>
>>>>> YouTube Live Streams: https://www.youtube.com/user/holdenkarau
>>>>> Pronouns: she/her
>>>>>
>>>>>
>>>>> On Sat, Mar 15, 2025 at 5:07 PM Holden Karau <holden.ka...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Given it’s the weekend maybe let’s give folks at least one full work
>>>>>> day.
>>>>>>
>>>>>> Twitter: https://twitter.com/holdenkarau
>>>>>> Fight Health Insurance: https://www.fighthealthinsurance.com/
>>>>>> <https://www.fighthealthinsurance.com/?q=hk_email>
>>>>>> Books (Learning Spark, High Performance Spark, etc.):
>>>>>> https://amzn.to/2MaRAG9  <https://amzn.to/2MaRAG9>
>>>>>> YouTube Live Streams: https://www.youtube.com/user/holdenkarau
>>>>>> Pronouns: she/her
>>>>>>
>>>>>>
>>>>>> On Sat, Mar 15, 2025 at 4:44 PM Mark Hamstra <markhams...@gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Quick administrative note: I don't see any reason why this vote
>>>>>>> should
>>>>>>> take a long time, so I expect to close the process and tally the
>>>>>>> votes
>>>>>>> in not much more than 48 hours.
>>>>>>>
>>>>>>> On Sat, Mar 15, 2025 at 4:35 PM Mark Hamstra <markhams...@gmail.com>
>>>>>>> wrote:
>>>>>>> >
>>>>>>> > There has been enough discussion on this topic already, so I think
>>>>>>> > that an immediate vote on the validity of Dongjoon's technical
>>>>>>> > justification for his veto of the "Retain migration logic ... in
>>>>>>> Spark
>>>>>>> > 4.0.x" proposal is in order. That technical justification has been
>>>>>>> > called into question, and the guidance at
>>>>>>> > https://www.apache.org/foundation/glossary.html#Veto leaves it to
>>>>>>> the
>>>>>>> > PMC to determine whether the technical justification is  valid: "In
>>>>>>> > case of doubt, deciding whether a technical justification is valid
>>>>>>> is
>>>>>>> > up to the PMC." As such, only PMC votes will decide the outcome of
>>>>>>> > this vote. This is neither a vote on a code change itself not a
>>>>>>> vote
>>>>>>> > on whether a package is ready for release, so it a procedural vote
>>>>>>> on
>>>>>>> > whether the technical justification is valid. As such, the vote
>>>>>>> will
>>>>>>> > be decided by a simple majority where +1 votes hold that the
>>>>>>> technical
>>>>>>> > justification is not valid and -1 votes hold that the technical
>>>>>>> > justification is valid.
>>>>>>> >
>>>>>>> > I would request that at least PMC members post more than just a
>>>>>>> naked
>>>>>>> > vote, but instead endeavor to give some reason why they have
>>>>>>> assessed
>>>>>>> > the technical justification as they have. I'll start:
>>>>>>> >
>>>>>>> > Despite all of the discussion related to Dongjoon's -1 vote, I must
>>>>>>> > confess to still not being entirely clear on what is his technical
>>>>>>> > justification for that veto. I see claims that including an
>>>>>>> admonition
>>>>>>> > in the Spark 4.0.x release notes that a prior upgrade to 3.5.5 is
>>>>>>> > required to maintain the integrity of already existing data
>>>>>>> streams,
>>>>>>> > and I see assertions about the maintenance burden that including
>>>>>>> the
>>>>>>> > migration logic would impose on future Spark versions, but I don't
>>>>>>> > think that I see any other technical objections. I do not believe
>>>>>>> that
>>>>>>> > the claimed technical justification is valid.
>>>>>>> >
>>>>>>> > In requiring that a veto of a code change be accompanied by a
>>>>>>> > technical justification for the veto, the Apache Voting Process
>>>>>>> states
>>>>>>> > that: "To prevent vetoes from being used capriciously, the voter
>>>>>>> must
>>>>>>> > provide with the veto a technical justification showing why the
>>>>>>> change
>>>>>>> > is bad (opens a security exposure, negatively affects performance,
>>>>>>> > etc. ). A veto without a justification is invalid and has no
>>>>>>> weight."
>>>>>>> > This strongly implies that there must be something objectively
>>>>>>> wrong
>>>>>>> > with the proposed code change in that it causes significant harm in
>>>>>>> > the way of opening a security exposure, negatively affecting
>>>>>>> > performance, or presumably other significant user harms or perhaps
>>>>>>> > even developer burdens.
>>>>>>> >
>>>>>>> > The proposed addition of the migration logic to Spark 4.0.x does
>>>>>>> not
>>>>>>> > cause any harm to Spark's users. For many users, those not using
>>>>>>> > streaming data, the change will have no effect. For streaming users
>>>>>>> > the change will be beneficial, not harmful.
>>>>>>> >
>>>>>>> > Neither do I find the claim of excessive, ongoing developer burden
>>>>>>> to
>>>>>>> > be persuasive. The changes are tiny and easily maintained -- in
>>>>>>> fact,
>>>>>>> > it wouldn't surprise me if no further changes to this migration
>>>>>>> logic
>>>>>>> > would be needed for a very long time.
>>>>>>> >
>>>>>>> > Some of what we are left with is just an expression of preference
>>>>>>> for
>>>>>>> > a technical alternative to the migration logic -- i.e. including in
>>>>>>> > the release notes an admonition to first upgrade to 3.5.5. But the
>>>>>>> > Apache Voting Process does not say that in the face of code
>>>>>>> > alternatives A and B, a qualified voter is justified in vetoing A
>>>>>>> if
>>>>>>> > they prefer B. Instead, the Voting Process strongly implies that
>>>>>>> > something more is needed to justify a veto, as I've already
>>>>>>> covered.
>>>>>>> > Thus I don't find Dongjoon's preference for the release notes
>>>>>>> option
>>>>>>> > to be adequate justification for the veto.
>>>>>>> >
>>>>>>> > The only remaining question I see is whether including
>>>>>>> "databricks" in
>>>>>>> > the Apache Code is ever allowed or if any such instance must be
>>>>>>> > expunged as soon as possible. I am not aware of any ASF policy that
>>>>>>> > strictly forbids the mention of a vendor in Apache code for any
>>>>>>> > reason, even if that vendor has a product based on Apache code,
>>>>>>> even
>>>>>>> > if that vendor enjoys a uniquely influential position vis a vis
>>>>>>> some
>>>>>>> > Apache code or project. Certainly the PMC has a duty to see to it
>>>>>>> that
>>>>>>> > neither Databricks nor any other vendor exercises influence or
>>>>>>> control
>>>>>>> > over Apache Spark outside of the established Apache process, but
>>>>>>> the
>>>>>>> > proposed migration code changes do not advantage Databricks -- if
>>>>>>> > anything they remove a minor avenue of influence, and simply need
>>>>>>> to
>>>>>>> > mention "databricks" once in order match and transform a
>>>>>>> configuration
>>>>>>> > into a vendor neutral equivalent. While not optimal, I can't find
>>>>>>> such
>>>>>>> > a one-time inclusion of "databricks" to be truly offensive to any
>>>>>>> > non-technical policy concern -- certainly not offensive to the
>>>>>>> point
>>>>>>> > that it outweighs the user advantage of including the migration
>>>>>>> logic
>>>>>>> > in Spark 4.0.x.
>>>>>>> >
>>>>>>> > In summary, I do not find Dongjoon's given technical justification
>>>>>>> to
>>>>>>> > be valid relative to the Apache requirements for a veto of a code
>>>>>>> > change, so I must vote...
>>>>>>> >
>>>>>>> > +1
>>>>>>>
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>>>>>>>
>>>>>>>

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