[FLINK-19259] Use classloader release hooks with Kinesis producer to avoid metaspace leak

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.1, 1.13.0
• Component/s: Connectors / Kinesis
• Labels: pull-request-available
• Assignee: Robert Metzger
• Reporter: Robert Metzger
• Created: 16/Sep/20 07:27
• Updated: 16/Dec/20 16:06
• Resolved: 16/Dec/20 16:05

Description

FLINK-17554 introduced hooks for clearing references before unloading a classloader.

The Kinesis Producer library is currently preventing the usercode classloader from being unloaded because it keeps references around.

This ticket is to use the hooks with the Kinesis producer.

Issue Links

• is related to: FLINK-17554 Add release hooks for user code class loader
• links to: GitHub Pull Request #14372