HTTP 102 Processing is a WebDAV status code indicating that the server has received and is processing the request, but no response is available yet. This prevents the client from timing out while the server works on a long-running operation.
A COPY, MOVE, or PROPFIND operation on a large collection of resources takes time to complete.
The server is performing a complex operation that requires extended processing time.
102 Processing is informational — the server will send a final response when the operation completes.
If the client disconnects prematurely, increase the request timeout to accommodate long operations.
If the operation never completes, check server logs for errors or resource exhaustion.