18894: Mention API.MaxRequestSize

Arvados-DCO-1.1-Signed-off-by: Peter Amstutz <peter.amstutz@curii.com>

diff --git a/doc/architecture/manifest-format.html.textile.liquid b/doc/architecture/manifest-format.html.textile.liquid
index 9efbef788fc56dd4c1406237257813f13567cfcc..e1057a42ea6f82a5691a908a3e65e1fa072dc613 100644 (file)
--- a/doc/architecture/manifest-format.html.textile.liquid
+++ b/doc/architecture/manifest-format.html.textile.liquid
@@ -72,7 +72,7 @@ manifest_size =
    + sum(size of all file names)
 </pre>
 
-Here is the size when including signatures.  The signatures authorize access to fetch the block from a Keep server, as <a href="#token_signatures">described below</a>.  The signed manifest is what is actually transferred to/from the API server and stored in RAM by @arv-mount@.
+Here is the size when including block signatures.  The block signatures authorize access to fetch each block from a Keep server, as <a href="#token_signatures">described below</a>.  The signed manifest text is what is actually transferred to/from the API server and stored in RAM by @arv-mount@.  The effective upper limit on how large a collection manifest can be is determined by @API.MaxRequestSize@ in @config.yml@ as well as the maximum request size configuration in your reverse proxy or load balancer (e.g. @client_max_body_size@ in Nginx).
 
 <pre>
 manifest_size =