cosmosdb项目的大小限制是多少？

Question

我一直在寻找天蓝色cosmosdb限制的权威来源我无法找到。特别是，我需要知道单个项目的大小限制。

Answer 1

今天文档的最大大小为2MB。

https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-resources#documents

Answer 2

因此，这是总是困扰我有关文档的事情之一。
当然，这是2MB，但是由谁来量算。

TLDR：介于2,090,014和2,100,014之间 Encoding.UTF8.GetByteCount（doc）或 Encoding.ASCII.GetByteCount（doc）

要到达那里，我设置了以下代码：

 for (int i = 10; i < 10000; i++)
        {
            var docItem = new TestItem(new string('A', i * 10000));
            string doc = JsonConvert.SerializeObject(docItem);
            log.LogInformation(" ");
            log.LogInformation(" -------------------------------------------------------------------------------------------------------------------------------------");
            log.LogInformation($" -------------------------------------------------        Doc Size = {i*10000 }       --------------------------------------------------");
            log.LogInformation(" -------------------------------------------------------------------------------------------------------------------------------------");
            
            log.LogWarning($"UTF7 - {Encoding.UTF7.GetByteCount(doc)}");
            log.LogWarning($"UTF8 - {Encoding.UTF8.GetByteCount(doc)}");
            log.LogWarning($"UTF32 - {Encoding.UTF32.GetByteCount(doc)}");
            log.LogWarning($"Unicode - {Encoding.Unicode.GetByteCount(doc)}");
            log.LogWarning($"Ascii - {Encoding.ASCII.GetByteCount(doc)}");
            log.LogInformation(" -------------------------------------------------------------------------------------------------------------------------------------");
            log.LogWarning($"UTF7 - {ASCIIEncoding.UTF7.GetByteCount(doc)}");
            log.LogWarning($"UTF8 - {ASCIIEncoding.UTF8.GetByteCount(doc)}");
            log.LogWarning($"UTF32 - {ASCIIEncoding.UTF32.GetByteCount(doc)}");
            log.LogWarning($"Unicode - {ASCIIEncoding.Unicode.GetByteCount(doc)}");
            log.LogWarning($"Ascii - {ASCIIEncoding.ASCII.GetByteCount(doc)}");
            try
            {
                await cosmosStore.CreateDocumentAsync(docItem);
            }
            catch (Exception e)
            {
                log.LogWarning(e.Message + "Caught");
            }
        }

这是它的坏处：