Hi folks,
We are in the process of upgrading ELK stack from version 7.17.2 to 8.9.2. When going through the list of Elasticsearch deprecation issues I spotted the below in Prod: (not seen in non-prod)
Multiple mapping types and custom mapping types in index templates and indices are deprecated
Update or remove the following index templates before upgrading to 8.0: [.monitoring-alerts-2, .monitoring-data-2, .monitoring-es-2, .monitoring-kibana-2, .monitoring-logstash-2, .watch-history-6, .watch-history-7].
See https://ela.st/es-deprecation-7-removal-of-types for alternatives to mapping types.
However, I can neither find any index templates nor indices matching the above. Where is this being reported from !!
Can someone please advice if I can go ahead with the upgrade, will it cause problem in starting elasticsearch application ? I cannot try this in non-prod as it did not report this problem.
Thank you