[FLINK-17159] Add sanity check to ES6 ElasticsearchSinkITCase

We now try and ping the cluster in a @Before method just like the normal
ES sink would.
1 file changed
tree: 192afbb7c4acb6852355b98b132a49bb89ed2cec
  1. flink-connectors/
  2. .asf.yaml
  3. README.md
README.md

flink-connector-elasticsearch