查询ES集群全部索引的数据量

工作需要，查询目前ES集群下各索引的数据量及日增量。用于资源管理统计。

查询url：

http://clusterIP:clusterPort/_cat/indices?v

示例：

部分列说明：

index：索引名

status：是否启用

rep：副本数

storesize：总大小（包含副本）

pristoresize：不包含副本的大小

 

C#代码：

public Dictionary<string, ResourceEntity> GetESTableSizeInfo()
        {
            Dictionary<string, ResourceEntity> result = new Dictionary<string, ResourceEntity>();
            StreamReader reader = null ;
            WebResponse rs = null;
            string uri = string.Format("{0}/_cat/indices?v", AppConfigGetter.Get(ConfigConstants.KEY_ESurl));
            try
            {
                HttpWebRequest req = WebRequest.Create(new Uri(uri)) as HttpWebRequest;
                req.Method = "GET";
                rs = req.GetResponse();
                Stream rss = rs.GetResponseStream();
                reader = new StreamReader(rss);
                
                reader.ReadLine();
                string data = reader.ReadLine();
                
                while (string.IsNullOrEmpty(data) == false)
                {
                    string[] fields = System.Text.RegularExpressions.Regex.Split(data, "[ ]+");
                    if (fields.Length == 10)//如果是close的，则fields.Length=5
                    {
                        string index = fields[2];
                        int copiesNum = Convert.ToInt32(fields[5]);
                        string size_ = fields[8];
                        if (result.ContainsKey(index)==false)
                        {
                            result.Add(index, new ResourceEntity()
                            {
                                Type = ResourceType.ES,
                                TableName = index,
                                CopiesNum = copiesNum,
                                Size_B = DataUtils.FormatData_GetB(size_)
                            });
                        }
                    }
                    data = reader.ReadLine();
                }
            }
            catch
            {
                throw;
            }
            finally
            {
                if (null != reader)
                    reader.Close();
                if (null != rs)
                    rs.Close();
            }
            return result;
        }
    }