I've a lot of elasticsearch clusters which hold the historical indices(more than 10 years old), some of these indices are created newly with latest settings and fields, but old ones are not deleted.
Now I need to delete the old indices which are not receiving any search and index requests.
I've already gone to elasticsearch curator but it would not work with older version of ES.
Is there is any API which can just gives the last time of index and search request in ES, that would serve my purpose very well.
EDIT:- I've also check https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-stats.html but this also doesn't give the last time when indexing or search request came. all it gave is the number of these requests from last restart.