Issues

Test that the CREATE strategy actually doesn't create mappings when the index already exists

Elasticsearch purges may fail due to concurrent (or non-refreshed) writes

Improve overhead of checking for Timeout during Query execution

NPE when clearing the index in Elasticsearch

Discovery_scheme not taken in account

Search queries on multiple-node setup with Elasticsearch + dynamic sharding may ignore some indexes

Remove conditions around Java 8 specific code

Fix transient failures in DefaultElasticsearchClientFactoryTest.discovery

Performance tests in sandbox running out of JDBC connections