[jira] [Created] (FLINK-3857) Add reconnect attempt to Elasticsearch host

[Shang Yuanchun (Jira)]

Fabian Hueske created FLINK-3857:
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             Summary: Add reconnect attempt to Elasticsearch host
                 Key: FLINK-3857
                 URL: https://issues.apache.org/jira/browse/FLINK-3857
             Project: Flink
          Issue Type: Improvement
          Components: Streaming Connectors
    Affects Versions: 1.0.2, 1.1.0
            Reporter: Fabian Hueske


Currently, the connection to the Elasticsearch host is opened in {{ElasticsearchSink.open()}}. In case the connection is lost (maybe due to a changed DNS entry), the sink fails.

I propose to catch the Exception for lost connections in the {{invoke()}} method and try to re-open the connection for a configurable number of times with a certain delay.





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