Comments (6)
Hi @felipeasf
Yes, as we commented here
NuRaft/examples/in_memory_state_mgr.hxx
Line 51 in 89d7bd3
you need to implement
save_config
and load_config
, as well as save_state
and read_state
. Once those APIs are working, Raft server will automatically call them and reconstruct the last cluster info.from nuraft.
context
is given at the initialization of Raft server and then becomes read-only. You need to set your callback function at the init time.
And now I realized that if someone uses raft_launcher
, there is no way to set the callback function. A simple workaround for now is writing your own init
function.
Seems to me the API that setting the callback function should be exposed outside. Will fix that soon. Thanks.
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Thanks for the answer @greensky00 !
I didn't know about that part of the calls being automatic. I got it working =)
Another question is: There is a way to know when a slave becomes a master?
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You can register a callback function for hooking up a few events:
NuRaft/include/libnuraft/context.hxx
Line 58 in 972f02d
The event for becoming a leader is defined here:
NuRaft/include/libnuraft/callback.hxx
Line 53 in 972f02d
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To register this callback I need the current context, right? As the context is created when the launcher.init function is called, how can I get the current context in order to set the callback?
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I wrote my own init function and is all good now!
Thanks for your kindly support!
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