[jira] [Resolved] (KAFKA-4041) kafka unable to reconnect to zookeeper behind an ELB

["Ismael Juma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-4041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ismael Juma resolved KAFKA-4041.
--------------------------------
    Resolution: Fixed

Marking as a duplicate of KAFKA-5473. In that JIRA, we will recreate the `ZooKeeper` instance if there's an issue connecting and should hopefully fix this issue too.

> kafka unable to reconnect to zookeeper behind an ELB
> ----------------------------------------------------
>
>                 Key: KAFKA-4041
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4041
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.9.0.1, 0.10.0.1
>         Environment: RHEL EC2 instances
>            Reporter: prabhakar
>            Priority: Blocker
>
> Kafka brokers are unable to connect to  zookeeper which is behind an ELB.
> Kafka is using zkClient which is caching the IP address of zookeeper  and even when there is a change in the IP for zookeeper it is using the Old zookeeper IP.
> The server.properties has a DNS name. Ideally kafka should resolve the IP using the DNS in case of any failures connecting to the broker.



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