What's the conceptual difference for * buffer * between buffer section of metadata, and c++ client's createBuffer.

[liusitan]

Describe your problem

If the buffer client， if I try to get a metadata of from a client, it has a buffer section

while in the c++ client, it also has a createBuffer Interface

are they different?

---

yes, they are different, createBuffer is an internal method in the client, which will not be exposed to our user, its job is to allocate memory on the server side, and let the blob object use the memory. While the metadata's buffer section, it points to the payload of the data.

[sighingnow]

It is an optimize to reduce the overhead of obtaining metadata from metadata store, without traversing the blobs embeded.