Can dynatrace open alert for Elasticsearch if the services is down?
Or there is configuration on Dynatrace something like custom event api or with log monitoring?
Because previously we has issued Elasticsearch services down and no event alert on CMC, so i must open the server and need check that services
Here this documentation doesn't talk about elastic search service alerts. Check the elastic search part for Premium HA for multi-data centers | Dynatrace Docs, the support for elastic search is covered by Dynatrace.