Enabling TTL in ES is actually very easy. Here's a mapping to enable _ttl:
curl -XPUT 'localhost:9200/ttltest'
{
"mappings": {
"doc": {
"_ttl" : {"enabled": true},
"properties": {
"foo": {
"type": "string"
}
}
}
}
}
And then when you index a document, just specify a ttl value:
curl -XPUT 'http://localhost:9200/ttltest/doc/1?ttl=1d' -d '{ }'
And the above do will automatically get deleted after 1 day.
The part I do not know is if that river you are using has ttl capabilities,
and if yes, how do you configure it from the river?
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