[jira] [Commented] (KAFKA-10329) Enable connector context in logs by default

["Dongjin Lee (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-10329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17173179#comment-17173179 ] 

Dongjin Lee commented on KAFKA-10329:
-------------------------------------

Hi [~rhauch],

It seems like this issue is related to [KIP-653: Upgrade log4j to log4j2|https://cwiki.apache.org/confluence/display/KAFKA/KIP-653%3A+Upgrade+log4j+to+log4j2]. Could you have a look? In my humble opinion, it would be good to handle both issues at once since upgrading to log4j2 inevitably introduces some backward compatibility break.

> Enable connector context in logs by default
> -------------------------------------------
>
>                 Key: KAFKA-10329
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10329
>             Project: Kafka
>          Issue Type: Improvement
>          Components: KafkaConnect
>    Affects Versions: 3.0.0
>            Reporter: Randall Hauch
>            Priority: Blocker
>              Labels: needs-kip
>             Fix For: 3.0.0
>
>
> When [KIP-449|https://cwiki.apache.org/confluence/display/KAFKA/KIP-449%3A+Add+connector+contexts+to+Connect+worker+logs] was implemented and released as part of AK 2.3, we chose to not enable these extra logging context information by default because it was not backward compatible, and anyone relying upon the `connect-log4j.properties` file provided by the AK distribution would after an upgrade to AK 2.3 (or later) see different formats for their logs, which could break any log processing functionality they were relying upon.
> However, we should enable this in AK 3.0, whenever that comes. Doing so will require a fairly minor KIP to change the `connect-log4j.properties` file slightly.
> Marked this as BLOCKER since it's a backward incompatible change that we definitely want to do in the 3.0.0 release.



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