are you referring to onCompleteCallback from https://github.com/apache/kafka/commit/837f31dd1850b179918f83338b4b4487486b2c58
[https://avatars2.githubusercontent.com/u/14958864?s=200&v=4]<https://github.com/apache/kafka/commit/837f31dd1850b179918f83338b4b4487486b2c58> KAFKA-6927; Chunked down-conversion to prevent out of memory errors o… · apache/kafka@837f31d<https://github.com/apache/kafka/commit/837f31dd1850b179918f83338b4b4487486b2c58> github.com …n broker [KIP-283] (#4871) Implementation for lazy down-conversion in a chunked manner for efficient memory usage during down-conversion. This pull request is mainly to get initial feedback on th... ? Martin _____________________________ ________________________________ From: Roy van der Valk <roy.van.der.v...@gmail.com> Sent: Friday, June 1, 2018 2:28 PM To: users@kafka.apache.org Subject: Re: Custom AuthenticateCallbackHandler Thank you Manikumar! On Fri, Jun 1, 2018 at 7:30 PM, Manikumar <manikumar.re...@gmail.com> wrote: > This feature will be part upcoming Kafka 2.0.0 release. > > Doc PR is here : https://github.com/apache/kafka/pull/4890 [https://avatars2.githubusercontent.com/u/13164074?s=400&v=4]<https://github.com/apache/kafka/pull/4890> KAFKA-6800: Update SASL/PLAIN and SCRAM docs to use KIP-86 callbacks by rajinisivaram · Pull Request #4890 · apache/kafka<https://github.com/apache/kafka/pull/4890> github.com Committer Checklist (excluded from commit message) Verify design and implementation Verify test coverage and CI build status Verify documentation (including upgrade notes) > > configs here: > https://github.com/apache/kafka/blob/trunk/clients/src/ > main/java/org/apache/kafka/common/config/SaslConfigs.java#L57 > > On Fri, Jun 1, 2018 at 10:51 PM, Roy van der Valk < > roy.van.der.v...@gmail.com> wrote: > > > Dear Kafka community, > > > > Can somebody help me setting up a custom AuthenticateCallbackHandler as > > described in KIP-86 recently added by Rajini Sivaram or point me to good > > documentation? > > > > I described my question in more detail on Stackoverflow: > > https://stackoverflow.com/questions/50412589/kafka-custom- > > authenticatecallbackhandler > > > > All help is greatly appreciated! > > > > Roy > > >