question Apache NIFI 2.0 Execute script: Script failing as ECMA engine is depreciated how to resolve what's the alternative in Support Questions

Apache NIFI 2.0 Execute script: Script failing as ECMA engine is depreciated how to resolve what's the alternative

SAMjam — Wed, 17 Apr 2024 06:05:19 GMT

We have some execute script processor that supports ECMA engine in NIFI 1.20 now we are migrating to NIFI 2.0 and since ECMA engine is depreciated how do we convert the script to closure or groovy or any other alternatives methods

Re: Apache NIFI 2.0 Execute script: Script failing as ECMA engine is depreciated how to resolve what's the alternative

VidyaSargur — Wed, 17 Apr 2024 09:09:13 GMT

@SAMjam, Welcome to our community! To help you get the best possible answer, I have tagged in our NiFi experts @SAMSAL @MattWho @TimothySpann who may be able to assist you further.

Please feel free to provide any additional information or details about your query, and we hope that you will find a satisfactory solution to your question.

Re: Apache NIFI 2.0 Execute script: Script failing as ECMA engine is depreciated how to resolve what's the alternative

TimothySpann — Wed, 17 Apr 2024 14:13:57 GMT

You can write Python processors. There is no autoconverter and never will be.

You can export JavaScript files and run via JDK Nashorn directly like

jjs testllm.js

You can run as NodeJS and call via REST

Re: Apache NIFI 2.0 Execute script: Script failing as ECMA engine is depreciated how to resolve what's the alternative

TimothySpann — Wed, 17 Apr 2024 14:16:37 GMT

https://community.cloudera.com/t5/Support-Questions/ExecuteScript-error-ECMAScript-is-missing/m-p/346336

Nashorn is removed from JDK 15, NiFi 2 uses JDK 21

Keep an old JDK 8 to run