Nginx splitting one single request's into multiple requests to upstream. (version 1.13.3)

[pankaj@releasemanager.in]

Pbooth,

Basically, i am receiving a complete json doc as a chunk from one app server
which is then proxied to another app which is handing each chunk as a
complete request. The problem is when you put nginx in between the document
is sometime divided in multiple chunks or multiple chunks are merge into one
chunk and transmitted to upstream app server.

I have tried various configuration options but couldn't identify which
configuration exactly controls this rechunking while proxying or max size of
the chunk so there's never a case when two json docs are sent to the app in
a single chunk. Ideally it should sent the chunk as is to upstream as
recieved.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,276545,276683#msg-276683