Hello all, Want to help upgrade the Flink ElasticSearch connector to 8.X.X version.
`elasticsearch-7` connector uses ElasticSearch `7.10.2` version. https://github.com/apache/flink-connector-elasticsearch/blob/main/flink-connector-elasticsearch7/pom.xml#L39 When the ElasticSearch server side is `8.X.X` then, `elasticsearch-7` connector does not work. For Example for ElasticSearch `8.2.2` version on the server side, the minimum required version on the `elasticsearch-7` Flink connector side is `"minimum_wire_compatibility_version" : "7.17.0"`. As of today `elasticsearch-8` does not exist yet. [ Add Elasticsearch 8.0 support Jira ticket |https://issues.apache.org/jira/browse/FLINK-26088 ] I'm proposing to do the upgrade in 2 phases: *Phase 1*: https://issues.apache.org/jira/browse/FLINK-29785 Phase 1 will require less time, and still unblock users to use Flink ES-7 connector with ElasticSearch 8.X.X version on the server side. *Phase 2*: https://issues.apache.org/jira/browse/FLINK-26088 Will be glad to hear others' suggestions. Thank you. -- Elkhan
