Hi,
ES 2.3.0
When starting Timelion ES throws the following error:
[2016-07-04 14:10:26,915][DEBUG][action.search ] [Hector] failed to reduce search
Failed to execute phase [fetch], [reduce]
at org.elasticsearch.action.search.SearchQueryThenFetchAsyncAction$2.onFailure(SearchQueryThenFetchAsyncAction.java:146)
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:39)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: script_lang not supported [expression]
at org.elasticsearch.script.ScriptService.getScriptEngineServiceForLang(ScriptService.java:212)
[..]