[KAFKA-14675] Extract metadata-related tasks from Fetcher into MetadataFetcher

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.5.0
• Fix Version/s: 3.7.0
• Component/s: clients, consumer
• Labels: consumer-threading-refactor
• Assignee: Kirk True
• Reporter: Kirk True
• Reviewer: Jason Gustafson
• Created: 03/Feb/23 00:11
• Updated: 19/Dec/23 03:15
• Resolved: 21/Feb/23 17:12

Description

The Fetcher class is used internally by the KafkaConsumer to fetch records from the brokers. There is ongoing work to create a new consumer implementation with a significantly refactored threading model. The threading refactor work requires a similarly refactored Fetcher.

This task covers the work to extract from Fetcher the APIs that are related to metadata operations into a new class named MetadataFetcher. This will allow the refactoring of Fetcher and MetadataFetcher for the new consumer.

Issue Links

• is part of: KAFKA-14246 Update threading model for Consumer
• links to: GitHub Pull Request #13192