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https://issues.apache.org/jira/browse/FLINK-4491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15597296#comment-15597296
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Mike Dias commented on FLINK-4491:
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Hi Flavio, I think that this is better addressed by using [Indices
Templates|https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-templates.html]
> Handle index.number_of_shards in the ES connector
> -------------------------------------------------
>
> Key: FLINK-4491
> URL: https://issues.apache.org/jira/browse/FLINK-4491
> Project: Flink
> Issue Type: Improvement
> Components: Streaming Connectors
> Affects Versions: 1.1.0
> Reporter: Flavio Pompermaier
> Priority: Minor
> Labels: elasticsearch, streaming
>
> At the moment is not possible to configure the number of shards if an index
> does not already exists on the Elasticsearch cluster. It could be a great
> improvement to handle the index.number_of_shards (passed in the configuration
> object). E.g.:
> {code:java}
> Map<String, String> config = Maps.newHashMap();
> config.put("bulk.flush.max.actions", "1");
> config.put("cluster.name", "my-cluster-name");
> config.put("index.number_of_shards", "1");
> {code}
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