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https://issues.apache.org/jira/browse/FLUME-2494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15325878#comment-15325878
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Lior Zeno commented on FLUME-2494:
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The _ttl field is deprecated since Elasticsearch 2.0
(https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-ttl-field.html),
I think we should remove it from the configuration and follow the suggestion
of time-based rolling indices instead.
> ElasticSearchSink: Allow the ttl to be set from the header.
> -----------------------------------------------------------
>
> Key: FLUME-2494
> URL: https://issues.apache.org/jira/browse/FLUME-2494
> Project: Flume
> Issue Type: Improvement
> Components: Sinks+Sources
> Reporter: Susie Murphy
> Priority: Minor
>
> Currently the ttl of documents is set based on the ttl field in the config
> file. It would be good if the ttl could be set by a field in the document's
> header.
> This would allow for more flexibility, making it easier if you want different
> ttls for different documents.
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