[jira] [Created] (BEAM-12601) Support append-only indices in ES output

["Andres Rodriguez (Jira)" <ji...@apache.org>]

Andres Rodriguez created BEAM-12601:
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             Summary: Support append-only indices in ES output 
                 Key: BEAM-12601
                 URL: https://issues.apache.org/jira/browse/BEAM-12601
             Project: Beam
          Issue Type: Improvement
          Components: io-java-elasticsearch
            Reporter: Andres Rodriguez


Currently, the Apache Beam Elasticsearch sink is [using|https://github.com/apache/beam/blob/master/sdks/java/io/elasticsearch/src/main/java/org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.java#L1532] the [index|https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html#bulk-api-request-body] bulk API operation to add data to the target index. When using append-only indices it is better to use the [create|https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html#bulk-api-request-body] operation. This also applies to new append-only indexes, like [data streams|https://www.elastic.co/guide/en/elasticsearch/reference/7.x/use-a-data-stream.html#add-documents-to-a-data-stream].

The scope of this improvement is to add a new boolean configuration option, {{append-only}}, to the Elasticsearch sink, with a default value of {{false}} (to keep the current behaivour) that when enabled makes it use the {{create}} operation instead of the {{index}} one when sending data.




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