grpc : Received message larger than max

status = StatusCode.RESOURCE_EXHAUSTED
        details = "Received message larger than max (4282239 vs. 4194304)"
        debug_error_string = "{"created":"@1633745838.187727309","description":"Received message larger than max (4282239 vs. 4194304)"

grpc 默认的传输长度是4M，当超过4M时会出现上面的错误。需要定制传输参数。

从server端和client端都需要指定传输参数如下：

在server端 设置 server参数：

MAX_MESSAGE_LENGTH = 256*1024*1024  # 可根据具体需求设置，此处设为256M



server = grpc.server(futures.ThreadPoolExecutor(max_workers=10), options=[
                             ('grpc.max_send_message_length', MAX_MESSAGE_LENGTH),
                             ('grpc.max_receive_message_length', MAX_MESSAGE_LENGTH),
                         ]
                         # compression=grpc.Compression.Gzip,
                         # interceptors=...,
                         )

在client端设置channel参数：

MAX_MESSAGE_LENGTH = 256*1024*1024  # 可根据具体需求设置，此处设为256M



with grpc.insecure_channel(target=docker_channel, options=[
                             ('grpc.max_send_message_length', MAX_MESSAGE_LENGTH),
                             ('grpc.max_receive_message_length', MAX_MESSAGE_LENGTH),
                         ]
                         # compression=grpc.Compression.Gzip,
                          ) as channel:

如果开发语言采用的是C++， 可参考 

python grpc报错Received message larger than max_liyangbinbin的博客-CSDN博客