Ceph » rgw

Hi all.

Many applications has large cookie header (total headers size is larger than 4KB), when a request put or get file from radosgw it return 400 status.
I not found options to config header size limit. I found this in rgw_asio_frontend.cc file.

static constexpr size_t header_limit = 4096;

It should increase to 8K, and the best is configurable.

I search some header size limit of other webserver.

Apache 2.0, 2.2: 8K
nginx: 4K - 8K
IIS: varies by version, 8K - 16K
Tomcat: varies by version, 8K - 48K
Nodejs : 8 - 16KB

Thanks.