Elasticsearch groovy script execution

Elastic Stack Elasticsearch
1

Hello everybody,

I'm using groovy scripts via the es update API to update some existing document in es.
Can somebody tell me how the groovy script is executed? i.e. in a separate java process, or in the process which runs es node?

I'm talking about es 2.x.

Thanks!

2

The Groovy script is run inside the ES process. Running a separate process for it would be prohibitively expensive.