Hello Luke,

thank you for finding this error, I have rectified it, and I will start a vote 
process soon.

--
Best,
Ziming


> On Jan 12, 2024, at 16:32, Luke Chen <show...@gmail.com> wrote:
> 
> Hi Ziming,
> 
> Thanks for the KIP!
> LGTM!
> Using incremental by defaul and fallback automatically if it's not
> supported is a good idea!
> 
> One minor comment:
> 1. so I'm inclined to move it to incrementalAlterConfigs  and "provide a
> flag" to still use alterConfigs  for new client to interact with old
> servers.
> I don't think we will "provide any flag" after the discussion. We should
> remove it.
> 
> Thanks.
> Luke
> 
> On Fri, Jan 12, 2024 at 12:29 PM ziming deng <dengziming1...@gmail.com 
> <mailto:dengziming1...@gmail.com>>
> wrote:
> 
>> Thank you for your clarification, Chris,
>> 
>> I have spent some time to review KIP-894 and I think it's automatic way is
>> better and bring no side effect, and I will also adopt this way here.
>> As you mentioned, the changes in semantics is minor, the most important
>> reason for this change is fixing bug brought by sensitive configs.
>> 
>> 
>>> We
>>> don't appear to support appending/subtracting from list properties via
>> the
>>> CLI for any other entity type right now,
>> You are right about this, I tried and found that we can’t subtract or
>> append configs, I will change the KIP to "making way for
>> appending/subtracting list properties"
>> 
>> --
>> Best,
>> Ziming
>> 
>>> On Jan 6, 2024, at 01:34, Chris Egerton <chr...@aiven.io.INVALID> wrote:
>>> 
>>> Hi all,
>>> 
>>> Can we clarify any changes in the user-facing semantics for the CLI tool
>>> that would come about as a result of this KIP? I think the debate over
>> the
>>> necessity of an opt-in flag, or waiting for 4.0.0, ultimately boils down
>> to
>>> this.
>>> 
>>> My understanding is that the only changes in semantics are fairly minor
>>> (semantic versioning pun intended):
>>> 
>>> - Existing sensitive broker properties no longer have to be explicitly
>>> specified on the command line if they're not being changed
>>> - A small race condition is fixed where the broker config is updated by a
>>> separate operation in between when the CLI reads the existing broker
>> config
>>> and writes the new broker config
>>> - Usage of a new broker API that has been supported since version 2.3.0,
>>> but which does not require any new ACLs and does not act any differently
>>> apart from the two small changes noted above
>>> 
>>> If this is correct, then I'm inclined to agree with Ismael's suggestion
>> of
>>> starting with incrementalAlterConfigs, and falling back on alterConfigs
>> if
>>> the former is not supported by the broker, and do not believe it's
>>> necessary to wait for 4.0.0 or provide opt-in or opt-out flags to release
>>> this change. This would also be similar to changes we made to
>> MirrorMaker 2
>>> in KIP-894 [1], where the default behavior for syncing topic configs is
>> now
>>> to start with incrementalAlterConfigs and fall back on alterConfigs if
>> it's
>>> not supported.
>>> 
>>> If there are other, more significant changes to the user-facing semantics
>>> for the CLI, then these should be called out here and in the KIP, and we
>>> might consider a more cautious approach.
>>> 
>>> [1] -
>>> 
>> https://cwiki.apache.org/confluence/display/KAFKA/KIP-894%3A+Use+incrementalAlterConfigs+API+for+syncing+topic+configurations
>>> 
>>> 
>>> Also, regarding this part of the KIP:
>>> 
>>>> incrementalAlterConfigs is more convenient especially for updating
>>> configs of list data type, such as
>> "leader.replication.throttled.replicas"
>>> 
>>> While this is true for the Java admin client and the corresponding broker
>>> APIs, it doesn't appear to be relevant to the kafka-configs.sh CLI tool.
>> We
>>> don't appear to support appending/subtracting from list properties via
>> the
>>> CLI for any other entity type right now, and there's nothing in the KIP
>>> that leads me to believe we'd be adding it for broker configs.
>>> 
>>> Cheers,
>>> 
>>> Chris
>>> 
>>> On Thu, Jan 4, 2024 at 10:12 PM ziming deng <dengziming1...@gmail.com
>> <mailto:dengziming1...@gmail.com>>
>>> wrote:
>>> 
>>>> Hi Ismael,
>>>> I added this automatically approach to “Rejected alternatives”
>> concerning
>>>> that we need to unify the semantics between alterConfigs and
>>>> incrementalAlterConfigs, so I choose to give this privilege to users.
>>>> 
>>>> After reviewing these code and doing some tests I found that they
>>>> following the similar approach, I think the simplest way is to let the
>>>> client choose the best method heuristically.
>>>> 
>>>> Thank you for pointing out this, I will change the KIP later.
>>>> 
>>>> Best,
>>>> Ziming
>>>> 
>>>>> On Jan 4, 2024, at 17:28, Ismael Juma <m...@ismaeljuma.com> wrote:
>>>>> 
>>>>> Hi Ziming,
>>>>> 
>>>>> Why is the flag required at all? Can we use incremental and fallback
>>>> automatically if it's not supported by the broker? At this point, the
>> vast
>>>> majority of clusters should support it.
>>>>> 
>>>>> Ismael
>>>>> 
>>>>> On Mon, Dec 18, 2023 at 7:58 PM ziming deng <dengziming1...@gmail.com
>>>> <mailto:dengziming1...@gmail.com>> wrote:
>>>>>> 
>>>>>> Hello, I want to start a discussion on KIP-1011, to make the broker
>>>> config change path unified with that of user/topic/client-metrics and
>> avoid
>>>> some bugs.
>>>>>> 
>>>>>> Here is the link:
>>>>>> 
>>>>>> KIP-1011: Use incrementalAlterConfigs when updating broker configs by
>>>> kafka-configs.sh - Apache Kafka - Apache Software Foundation
>>>>>> cwiki.apache.org <http://cwiki.apache.org/> <http://cwiki.apache.org/>
>>>>>> 
>>>>>> <
>>>> 
>> https://cwiki.apache.org/confluence/display/KAFKA/KIP-1011%3A+Use+incrementalAlterConfigs+when+updating+broker+configs+by+kafka-configs.sh
>>> KIP-1011:
>>>> Use incrementalAlterConfigs when updating broker configs by
>>>> kafka-configs.sh - Apache Kafka - Apache Software Foundation <
>>>> 
>> https://cwiki.apache.org/confluence/display/KAFKA/KIP-1011%3A+Use+incrementalAlterConfigs+when+updating+broker+configs+by+kafka-configs.sh
>>>>> 
>>>>>> cwiki.apache.org <http://cwiki.apache.org/> <http://cwiki.apache.org/> <
>>>> 
>> https://cwiki.apache.org/confluence/display/KAFKA/KIP-1011%3A+Use+incrementalAlterConfigs+when+updating+broker+configs+by+kafka-configs.sh
>>> 
>>>>      <
>>>> 
>> https://cwiki.apache.org/confluence/display/KAFKA/KIP-1011%3A+Use+incrementalAlterConfigs+when+updating+broker+configs+by+kafka-configs.sh
>>>>> 
>>>>>> 
>>>>>> Best,
>>>>>> Ziming.

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