RE: Kafka Connect Rest Extension Question

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-----Original Message-----
From: Greg Harris [mailto:greg.harris@aiven.io.INVALID] 
Sent: 31 July 2023 23:42
To: users@kafka.apache.org
Subject: Re: Kafka Connect Rest Extension Question

Hello Yang Hyung Wook,

In your post I do not see anything obviously wrong, so you may need to do some more debugging.

1. Are you using the same jar for both the classpath and plugin.path tests? If not, do they both contain the service loader manifest file?
You can test this with
https://docs.oracle.com/javase/tutorial/deployment/jar/view.html
2. Do you see either of these errors
https://github.com/apache/kafka/blob/3.5.0/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/isolation/DelegatingClassLoader.java#L267-L269
for filesystem-specific problems?
3. This log line
https://github.com/apache/kafka/blob/3.5.0/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/isolation/DelegatingClassLoader.java#L275
should be printed multiple times when you're using plugin.path. Are you seeing a log including a directory containing your jar file, the jar file itself, or only other locations?
4. If there is a dependency-related error, it will appear with this error log: https://github.com/apache/kafka/blob/3.5.0/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/isolation/DelegatingClassLoader.java#L431

If the above doesn't help, can you please provide your redacted worker startup logs after
https://github.com/apache/kafka/blob/3.5.0/connect/runtime/src/main/java/org/apache/kafka/connect/cli/AbstractConnectCli.java#L120
and before the worker starts printing configurations?

Thanks,
Greg Harris

On Mon, Jul 31, 2023 at 5:38 AM 양형욱 <hy...@navercorp.com> wrote:
>
> https://stackoverflow.com/questions/76797743/how-can-i-solve-connectre
> stextension-error
>
> There is an issue with this link where the ConnectRestExtension implementation is not registered. I've done everything the kip official documentation says, but can you tell me why it doesn't work?
>
> 양형욱 Yang Hyung Wook
> Global Platform Dev
>
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