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https://issues.apache.org/jira/browse/KAFKA-6417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16419613#comment-16419613
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Dustin Cote commented on KAFKA-6417:
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This makes sense, basically if you have a top level jar then you don't get your
connector and I'm good with that. If they throw all of their uber JARs into
some shared directory, it's at their peril since it should be pretty easy to
understand that each plugin needs {{directory/jars}} as the structure. What
would the behavior be of multiple uber JARs in a shared directory though?
Wouldn't the herder just pick up those plugins independently or would it just
pick up the first one it finds?
> plugin.path pointing at a plugin directory causes ClassNotFoundException
> ------------------------------------------------------------------------
>
> Key: KAFKA-6417
> URL: https://issues.apache.org/jira/browse/KAFKA-6417
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 1.0.0
> Reporter: Dustin Cote
> Priority: Major
>
> When using the {{plugin.path}} configuration for the Connect workers, the
> user is expected to specify a list containing the following per the docs:
> {quote}
> The list should consist of top level directories that include any combination
> of: a) directories immediately containing jars with plugins and their
> dependencies b) uber-jars with plugins and their dependencies c) directories
> immediately containing the package directory structure of classes of plugins
> and their dependencies
> {quote}
> This means we would expect {{plugin.path=/usr/share/plugins}} for a structure
> like {{/usr/share/plugins/myplugin1}},{{/usr/share/plugins/myplugin2}}, etc.
> However if you specify {{plugin.path=/usr/share/plugins/myplugin1}} the
> resulting behavior is that dependencies for {{myplugin1}} are not properly
> loaded. This causes a {{ClassNotFoundException}} that is not intuitive to
> debug.
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