Why Netty 4 “proxy” example has to set channel “AUTO_READ” as false

Question

In Netty 4 \"proxy\" example, the channel auto read option has been disabled:

serverBootStrap.group(bossGroup, workerGroup)
    ...
    .childOption(ChannelO         


        

Answer 1

if you not set autoread to false you may get into trouble if one channel writes a lot of data before the other can consume it. As it's all asynchronous you may end up buffers to much data and hit OOME.