Status API (num_docs, max_doc, deleted_docs) http://localhost:9200/photos/_status?pretty

_status

{
  "ok" : true,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "indices" : {
    "photos" : {
      "index" : {
        "primary_size" : "5.4gb",
        "primary_size_in_bytes" : 5831593376,
        "size" : "5.4gb",
        "size_in_bytes" : 5831593376
      },
      "translog" : {
        "operations" : 0
      },
      "docs" : {
        "num_docs" : 4642751,
        "max_doc" : 5912872,
        "deleted_docs" : 1270121
      },
      "merges" : {
        "current" : 0,
        "current_docs" : 0,
        "current_size" : "0b",
        "current_size_in_bytes" : 0,
        "total" : 0,
        "total_time" : "0s",
        "total_time_in_millis" : 0,
        "total_docs" : 0,
        "total_size" : "0b",
        "total_size_in_bytes" : 0
      },
      "refresh" : {
        "total" : 5582,
        "total_time" : "31m",
        "total_time_in_millis" : 1863527
      },
      "flush" : {
        "total" : 463,
        "total_time" : "1.4h",
        "total_time_in_millis" : 5280017
      },
      "shards" : {
        "0" : [ {
          "routing" : {
            "state" : "STARTED",
            "primary" : true,
            "node" : "j0PZd_knTAO6cv0k9AWj3Q",
            "relocating_node" : null,
            "shard" : 0,
            "index" : "photos"
          },
          "state" : "STARTED",
          "index" : {
            "size" : "5.4gb",
            "size_in_bytes" : 5831593376
          },
          "translog" : {
            "id" : 1381132140748,
            "operations" : 0
          },
          "docs" : {
            "num_docs" : 4642751,
            "max_doc" : 5912872,
            "deleted_docs" : 1270121
          },
          "merges" : {
            "current" : 0,
            "current_docs" : 0,
            "current_size" : "0b",
            "current_size_in_bytes" : 0,
            "total" : 0,
            "total_time" : "0s",
            "total_time_in_millis" : 0,
            "total_docs" : 0,
            "total_size" : "0b",
            "total_size_in_bytes" : 0
          },
          "refresh" : {
            "total" : 5582,
            "total_time" : "31m",
            "total_time_in_millis" : 1863527
          },
          "flush" : {
            "total" : 463,
            "total_time" : "1.4h",
            "total_time_in_millis" : 5280017
          }
        } ]
      }
    }
  }
}