java.lang.RuntimeException

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    • java.lang.RuntimeException: Client is not connected to any Elasticsearch nodes! at org.apache.flink.streaming.connectors.elasticsearch2.ElasticsearchSink.open(ElasticsearchSink.java:172) at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:38) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:91) at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:317) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:215) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:579) at java.lang.Thread.run(Thread.java:745)
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