Hi,
Thank you very much for this quick answer. I am not sure I understand where/how
to use this property. I see an example here
https://cwiki.apache.org/confluence/display/KAFKA/KIP-85%3A+Dynamic+JAAS+configuration+for+Kafka+clients
but I don't understand how to use it while creating a Producer/Consumer
instance. Could you help me with this please?
A quick example would be the following?
//Producer with specific config: principal 'abc'
Properties producerConfig = new Properties();
producerConfig.put("sasl.jaas.config" , <what is the format here?>)
KafkaProducer<String, String> producer = new KafkaProducer<>( producerConfig)
//Consumer with specific config: principal 'xyz'
Properties consumerConfig = new Properties();
consumerConfig.put("sasl.jaas.config" , <what is the format here?>)
KafkaConsumerr<String, String> producer = new KafkaConsumer<>( consumerConfig)
Thanks in advance.
Antoine
-----Original Message-----
From: Manikumar [mailto:manikumar.re...@gmail.com]
Sent: Tuesday, April 24, 2018 1:39 PM
To: Users
Subject: Re: Transfer data between kerberized kafka clusters (different
principals)
Hi,
From Kafka 0.10.2.0, we can configure producer/consumer jaas configuration
using "sasl.jaas.config" config property. Using this we can configure
different principals.
On Tue, Apr 24, 2018 at 10:58 PM, Zieger, Antoine <
antoine.zie...@morganstanley.com> wrote:
> Hi,
>
> I am trying to transfer data between two kerberized kafka clusters. The
> brokers are running under different users on both clusters and so, I am
> providing a different Kerberos.service.name to consumer and producer. For
> security reasons and access management rules in places, having the same
> principal on both sides is not possible. Whenever I start my java program I
> get the error "principals don't match"
>
> My understanding is that kafka mirror-maker is doing the same thing and
> does not support different principals. (https://community.
> hortonworks.com/articles/79891/kafka-mirror-maker-best-practices.html )
> "In kafka 0.9.x and 0.10.0.1, 0.10.1.0, consumers and producers in
> mirror-maker cannot run with different principals/keytabs as they both run
> inside a single JVM"
>
> As I understand it this is a Kafka API limitation right? I looked at the
> release notes of versions > 0.10.1.0 and didn't see any ticket that
> resolved this, unless I missed it?
>
> By any chance are you aware of a workaround? Or the only solution in case
> of two different principals is to have two different JVMs? (one for the
> consumer and one for the producer, which means we need some kind of buffer
> in between).
>
> Thanks in advance for your help.
>
> Antoine
>
>
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