[
https://issues.apache.org/jira/browse/KAFKA-7193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rajini Sivaram resolved KAFKA-7193.
-----------------------------------
Resolution: Fixed
Reviewer: Ismael Juma
Fix Version/s: 2.0.0
> ZooKeeper client times out with localhost due to random choice of ipv4/ipv6
> ---------------------------------------------------------------------------
>
> Key: KAFKA-7193
> URL: https://issues.apache.org/jira/browse/KAFKA-7193
> Project: Kafka
> Issue Type: Bug
> Components: zkclient
> Affects Versions: 2.0.0
> Reporter: Rajini Sivaram
> Assignee: Rajini Sivaram
> Priority: Major
> Fix For: 2.0.0
>
>
> ZooKeeper client from version 3.4.13 doesn't handle connections to
> `localhost` very well. If ZooKeeper is started on 127.0.0.1 on a machine that
> has both ipv4 and ipv6 and a client is created using `localhost` rather than
> the IP address in the connection string, ZooKeeper client attempts to connect
> to ipv4 or ipv6 randomly with a fixed one second backoff if connection fails.
> With the default 6 second connection timeout in Kafka, this can result in
> client connection failures if ipv6 is chosen in consecutive address
> selections.
> Streams tests are failing intermittently as a result of this.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
