bazel-remote patch

commit 7adef170ba0ec1b379b3fd5e2e55dfd865bd2bda
Author: Alex Eagle <eagle@post.harvard.edu>
Date:   Wed May 19 18:11:31 2021 -0700

    experiment: reject WriteResource requests over 10MB

diff --git a/server/grpc_bytestream.go b/server/grpc_bytestream.go
index a2e4826..9820f02 100644
--- a/server/grpc_bytestream.go
+++ b/server/grpc_bytestream.go
@@ -336,6 +336,7 @@ func (s *grpcServer) parseWriteResource(r string) (string, int64, casblob.Compre
 
 var errWriteOffset error = errors.New("bytestream writes from non-zero offsets are unsupported")
 var errDecoderPoolFail error = errors.New("failed to get DecoderWrapper from pool")
+var errRequestObjectTooLarge error = errors.New("write request exceeds configured maximum object size")
 
 func (s *grpcServer) Write(srv bytestream.ByteStream_WriteServer) error {
 
@@ -411,6 +412,11 @@ func (s *grpcServer) Write(srv bytestream.ByteStream_WriteServer) error {
 					return
 				}
 
+				if (size > 10 * 1024 * 1024) {
+					recvResult <- errRequestObjectTooLarge
+					return
+				}
+
 				resp.CommittedSize = req.WriteOffset
 				if req.WriteOffset != 0 {
 					err = errWriteOffset