In Kibana when I click on Monitoring getting error
[illegal_argument_exception] unknown type for collapse field cluster_uuid, only keywords and numbers are accepted: Check the Elasticsearch Monitoring cluster network connection or the load level of the nodes.
In the Elasticsearch log file
[2020-03-22T10:40:25,595][DEBUG][o.e.a.s.TransportSearchAction] [ausplgicuesmon1_2dcmon] [.monitoring-es-7-mb-2020.03.22][0], node[zm8CYKFZQeuJSWmcoIfYNA], [R], s[STARTED], a[id=8Dm7sY0dRyqQrnX8Cho8pA]: Failed to execute [SearchRequest{searchType=QUERY_THEN_FETCH, indices=[.monitoring-es-7-mb-2020.03.22], indicesOptions=IndicesOptions[ignore_unavailable=true, allow_no_indices=true, expand_wildcards_open=true, expand_wildcards_closed=false, allow_aliases_to_multiple_indices=true, forbid_closed_indices=true, ignore_aliases=false, ignore_throttled=true], types=[], routing='null', preference='null', requestCache=null, scroll=null, maxConcurrentShardRequests=0, batchedReduceSize=512, preFilterShardSize=128, allowPartialSearchResults=true, localClusterAlias=null, getOrCreateAbsoluteStartMillis=-1, ccsMinimizeRoundtrips=true, source={"size":10000,"query":{"bool":{"filter":[{"term":{"type":{"value":"cluster_stats","boost":1.0}}},{"range":{"timestamp":{"from":1584888025379,"to":1584891625379,"include_lower":true,"include_upper":true,"format":"epoch_millis","boost":1.0}}}],"adjust_pure_negative":true,"boost":1.0}},"sort":[{"timestamp":{"order":"desc"}}],"collapse":{"field":"cluster_uuid"}}}]
org.elasticsearch.transport.RemoteTransportException: [ausflgicuesmon1_2dcmon][10.182.182.34:9301][indices:data/read/search[phase/query]]
Caused by: java.lang.IllegalArgumentException: unknown type for collapse field `cluster_uuid`, only keywords and numbers are accepted
at org.elasticsearch.search.collapse.CollapseBuilder.build(CollapseBuilder.java:209) ~[elasticsearch-7.6.1.jar:7.6.1]
at org.elasticsearch.search.SearchService.parseSource(SearchService.java:919) ~[elasticsearch-7.6.1.jar:7.6.1]
at org.elasticsearch.search.SearchService.createContext(SearchService.java:591) ~[elasticsearch-7.6.1.jar:7.6.1]