Thank you for fast reply. Could you suggest any opensourced examples even for such maybe a little bit complicated pipeline?
Well, you'll need to be familiar with the ES documents structure, and use the _size
https://www.elastic.co/guide/en/elasticsearch/plugins/current/mapper-size-usage.html (which would probably require you to reindex the data). That's for ES.
For MongoDB, you'll need to use the $bsonSize
https://www.mongodb.com/docs/upcoming/reference/operator/aggregation/bsonSize/ on the task documents.
Hi GreasyRaven35 , this actually takes some more infrastructure, and can only be done using ES plugins and specific MongoDB queries