[FLINK-25961] Remove transport client from Elasticsearch 6/7 connectors (tests only)

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.16.0
• Component/s: Connectors / ElasticSearch
• Labels: elasticsearch pull-request-available
• Assignee: Andriy Redko
• Reporter: Andriy Redko
• Created: 04/Feb/22 15:43
• Updated: 30/Mar/22 17:54
• Resolved: 30/Mar/22 17:54

Description

The Elasticsearch 6/7 connectors still use deprecated transport client for integration tests. This is not really necessary and brings a lot of dependencies, the HighLevelRestClient is fully sufficient and could be used as drop-in replacement.

The change affects only tests.

Issue Links

• links to: GitHub Pull Request #18634