ElasticSearch 5.x Group by Terms error (length not defined)

Hello, I push ntopng data directly into ElasticSearch and i want see some graphics of that information, like the Layer 7 Protocols… well… When i add the PieChart pannel and select the query

The response of elasticsearch is: { "request": { "method": "POST", "url": "api/datasources/proxy/9/_msearch", "data": "{\"search_type\":\"query_then_fetch\",\"ignore_unavailable\":true,\"index\":\"ntopng-*\"}\n{\"size\":0,\"query\":{\"bool\":{\"filter\":[{\"range\":{\"@timestamp\":{\"gte\":\"1507891196845\",\"lte\":\"1507912796845\",\"format\":\"epoch_millis\"}}},{\"query_string\":{\"analyze_wildcard\":true,\"query\":\"*\"}}]}},\"aggs\":{\"2\":{\"terms\":{\"field\":\"L7_PROTO_NAME.raw\",\"size\":10,\"order\":{\"_term\":\"desc\"},\"min_doc_count\":1},\"aggs\":{}}}}\n" }, "response": { "responses": [ { "took": 3, "timed_out": false, "_shards": { "total": 5, "successful": 5, "failed": 0 }, "hits": { "total": 125024, "max_score": 0, "hits": [] }, "aggregations": { "2": { "doc_count_error_upper_bound": 0, "sum_other_doc_count": 86260, "buckets": [ { "key": "Yahoo", "doc_count": 4 }, { "key": "Unknown", "doc_count": 459 }, { "key": "Unencrypted_Jabber", "doc_count": 196 }, { "key": "SSL_No_Cert", "doc_count": 19188 }, { "key": "SSL.HTTP", "doc_count": 1 }, { "key": "SSL", "doc_count": 4034 }, { "key": "SSH.HTTP", "doc_count": 1 }, { "key": "SSH", "doc_count": 865 }, { "key": "SSDP", "doc_count": 98 }, { "key": "SMTPS", "doc_count": 12 } ] } }, "status": 200 } ] } }

[lfdominguez]

sorry, my bad… i need to set “All” Into value of the options. Thanks @manojown now is working great!!!

[manojown]

actually, grafana support only time series data so you need to select date histogram with @timestam field (means your time series field) then you can view your graph or pie whatever. View the example below. i hope this will help you .