Hello Jun jr1. Yes. When using the controller path, AlterConfigOp.OpType.SET allows null values. As a result, the user’s configuration may be deleted unintentionally.
Best Regards, Jiunn-Yang > Jun Rao via dev <[email protected]> 於 2026年1月31日 上午8:02 寫道： > > Hi, Jiunn-Yang, > > Thanks for the KIP. It's important to make the config behavior consistent > between the broker and the controller. > > jr1. "Brokers only allow null values with the AlterConfigOp.OpType.DELETE > operation type; otherwise, they throw an InvalidRequestException . > Controllers allow users to set null values with > AlterConfigOp.OpType.DELETE without restrictions." > Do you mean that the controller allow users to set null values for types > other than AlterConfigOp.OpType.DELETE? If that's the case, does that lead > to accidentally deleting a config? > > Jun > > > > On Tue, Jan 6, 2026 at 2:02 AM 黃竣陽 <[email protected]> wrote: > >> Hi all, >> >> I’d like to manually bump this thread. >> >> Best Regards, >> Jiunn-Yang >> >>> 黃竣陽 <[email protected]> 於 2025年12月22日 晚上9:25 寫道： >>> >>> Hello chia, >>> >>> Thanks for your comments. >>> I have updated the KIP based on your feedback. >>> >>> Best Regards, >>> Jiunn-Yang >>> >>>> Chia-Ping Tsai <[email protected]> 於 2025年12月21日 晚上9:40 寫道： >>>> >>>> hi Jiunn-Yang >>>> >>>> chia_00: please update the discussion link on the KIP page >>>> >>>> chia_01: The description of `Invalid dynamic configs` is incomplete. >> The controller accepts the invalid request initially, but silently drops >> the invalid configs during application. Consequently, previous valid >> configs are also removed ... >>>> >>>> Best, >>>> Chia-Ping >>>> >>>> On 2025/12/15 12:14:52 黃竣陽 wrote: >>>>> Hello everyone, >>>>> >>>>> I would like to start a discussion on KIP-1256 Align broker and >> controller behavior for handling >>>>> null config values, duplicate entries, and error codes < >> https://cwiki.apache.org/confluence/x/J47MFw> >>>>> >>>>> This proposal aims to align the behavior of >> Admin.incrementalAlterConfigs when using bootstrap.servers >>>>> versus bootstrap.controllers. >>>>> >>>>> Best Regards, >>>>> Jiunn-Yang >>> >> >>
