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Posted to jira@kafka.apache.org by "dengziming (Jira)" <ji...@apache.org> on 2021/11/20 03:48:00 UTC

[jira] [Commented] (KAFKA-13467) Clients never refresh cached bootstrap IPs

    [ https://issues.apache.org/jira/browse/KAFKA-13467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17446746#comment-17446746 ] 

dengziming commented on KAFKA-13467:
------------------------------------

Since clients have no visibility to changes in bootstrap IPs, it seems that the only mechanism we have for updating the cached IPs is connection establishment. By closing the broker side of the connection, clients would be forced to reconnect and receive an updated set of  bootstrap IPs. what do you think [~mjsax] ? should we investigate an alternative approache in a new KIP?

> Clients never refresh cached bootstrap IPs
> ------------------------------------------
>
>                 Key: KAFKA-13467
>                 URL: https://issues.apache.org/jira/browse/KAFKA-13467
>             Project: Kafka
>          Issue Type: Improvement
>          Components: clients, network
>            Reporter: Matthias J. Sax
>            Priority: Minor
>
> Follow up ticket to https://issues.apache.org/jira/browse/KAFKA-13405.
> For certain broker rolling upgrade scenarios, it would be beneficial to expired cached bootstrap server IP addresses and re-resolve those IPs to allow clients to re-connect to the cluster without the need to restart the client.



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