I am using logstash with scheduling to load data from database to ElasticSearch daily, now I have a script that will do some machine learning stuff on my index, how can I call a python script whenever an index is updated or schedule a python script to run daily? I was reading: ES Python docs though …

Well, short of an Elasticsearch plugin there's no way to hook into each batch of documents (if that's even the correct trigger in your case). You could e.g. have a cron job that runs periodically but terminates immediately if nothing has happened since the last execution.

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Call a python script from ElasticSearch daily

Elastic Stack Logstash

aashishgahlawat (Aashish Gahalwat) August 31, 2018, 2:14pm 9

Also there is no way to exec only once as mentioned by ES Community Here

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