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From BGCH <igor.velic...@hivehome.com>
Subject Kafka client and ELB (round-robin DNS)
Date Fri, 03 Mar 2017 13:37:21 GMT
Hi all,

briefly about the problem, if bootstrap.servers is a domain name and 
that domain name eventually starts pointing to different IP, kafka 
client will never try to re-resolve the new IP.

In our project we use java-based Kafka client 0.9. We configure 
bootstrap.servers  with the domain name, say kafka.ourvpc.io, which is 
managed by ELB (in our case it's just a round-robin DNS).
If we have two Kafka clusters and the first of them is killed after 
application is started, the application never reconnects to the second. 
Kafka client instantly tries to connect to the first IP despite the fact 
that DNS points to another IP.

Is this a know issue?  Are there any workarounds?


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