The max metadata size translates to the HTTP/2 MAX_HEADER_LIST_SIZE setting, defined in https://tools.ietf.org/html/rfc7540#section-6.5.2. Since the status details are sent as part of trailing metadata, they count toward this size limit.
The HTTP/2 settings value needs to fit in 32 bits, so the closest you can come to setting it to unlimited is to set it to INT32_MAX. On Tue, Mar 13, 2018 at 3:16 AM, aamit via grpc.io <grpc-io@googlegroups.com > wrote: > Hi, > > Had 2 questions regarding using "grpc.max_metadata_size" > > 1. It was not clear to me that `max_metadata_size` takes into account size > of "detail" part of response. Can we allow setting "max_metadata_size" to > -1 to represent unlimited as with `max_send_message_length` and > `max_receive_message_length`? > > The exception that gets raised (at least from python) when you try and > return with details larger then `max_metadata_size` is > `(StatusCode.RESOURCE_EXHAUSTED, to-be-sent trailing metadata size > exceeds peer limit` which imo is somewhat confusing as I didn't consider > "details" to be trailing metadata, and it does not show up under the > response call trailing metadata. > > 2. Is the equivalent of "max_metadata_size" exposed anywhere in grpc-go? > As far as I can tell Java does expose it through netty params > `maxHeaderListSize`. > > Thanks, > Ashwin > > -- > You received this message because you are subscribed to the Google Groups " > grpc.io" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to grpc-io+unsubscr...@googlegroups.com. > To post to this group, send email to grpc-io@googlegroups.com. > Visit this group at https://groups.google.com/group/grpc-io. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/grpc-io/31385f13-7406-4af5-b124-f511098074f3%40googlegroups.com > <https://groups.google.com/d/msgid/grpc-io/31385f13-7406-4af5-b124-f511098074f3%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Mark D. Roth <r...@google.com> Software Engineer Google, Inc. -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to grpc-io+unsubscr...@googlegroups.com. To post to this group, send email to grpc-io@googlegroups.com. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/CAJgPXp6C1c3nfOhPcdwC%2B0ALMFx0KPXzRZVRMQsX2E%3D%2BXDij4g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
