Arena is not supposed to be used as a memory pool. The recommended pattern
is to use one arena per rpc request/response. You can tweak that to one
arena multiple rpc request/response but the number of messages you want to
put into the arena should be limited. It won't work well if you use one
Can someone confirm for me that there's no way to return a message's memory
to the arena when you're done with it? I was expecting the arena to work
something like boost::pool where I can give memory back when I'm done with
it, but it appears that's not part of the API here.
My use case is a
