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Version: 2.1.3

Flink SQL ElasticSearch Connector

Description​

With elasticsearch connector, you can use the Flink SQL to write data into ElasticSearch.

Usage​

Let us have a brief example to show how to use the connector.

1. kafka prepare​

Please refer to the Eleastic Doc to prepare elastic environment.

2. prepare seatunnel configuration​

ElasticSearch provide different connectors for different version:

  • version 6.x: flink-sql-connector-elasticsearch6
  • version 7.x: flink-sql-connector-elasticsearch7

Here is a simple example of seatunnel configuration.

SET table.dml-sync = true;

CREATE TABLE events (
    id INT,
    name STRING
) WITH (
    'connector' = 'datagen'
);

CREATE TABLE es_sink (
    id INT,
    name STRING
) WITH (
    'connector' = 'elasticsearch-7', -- or 'elasticsearch-6'
    'hosts' = 'http://localhost:9200',
    'index' = 'users'
);

INSERT INTO es_sink SELECT * FROM events;

Execute the following command in seatunnel home path to start the Flink SQL job.

$ bin/start-seatunnel-sql.sh -c config/elasticsearch.sql.conf

4. verify result​

Verify result from elasticsearch.