I found the following comment in the 1.3.0 release notes, after i noticed the 413 return code. Side note: It would be nice if an error message is also returned with this 413, like other messages when there are errors like timeout, etc.
I didn’t get any error message, just the connection closed on me.
max-body-size was added with a default of 25,000,000, but can be disabled by setting it to 0. Specifies the maximum size (in bytes) of a client request body. When a client sends data that exceeds the configured maximum size, a 413 Request Entity Too Large HTTP response is returned.
I changed the max-body-size to 0, and that got rid of my errors during my large data writes and schema migration.
Hope this helps someone else.