Looks like the error code in braft::Status is mapped as error codes in the C++ standard. For example, I saw this in closure_queue.cpp:

(*it)->status().set_error(EPERM, "leader stepped down");

Similar logic is scattered around the code base.

I am wondering whether we have any documentation for all the possible error codes (i.e. the mapping)?

Is your feature request related to a problem? Please describe.

Configuration options are not documented on the web site.

Describe the solution you'd like

I need to look at the code (i.e. the *Config classes) or at the Javadoc in order to determine the configuration options. I'd like to have it documented on the website and to be sure that the configuration options match whatever

I'm confused about the example for data migration during code updates. The runMigration example function asserts that this is an upgrade from version 0 to version 1. Shouldn't this be from version 1 to version 2? Or am I completely misunderstanding how migrations work?

kv_server.cc:156:31: error: ‘class floyd::Floyd’ has no member named ‘DirtyWrite’
Status result = floyd_->DirtyWrite(request.key(), request.value());

kv_server.cc:139:47: error: no matching function for call to ‘floyd::Floyd::GetServerStatus(std::string&)’
bool ret = floyd_->GetServerStatus(value);

lots of bug exists