riak_core & node down question

Konstantin Kalin konstantin.kalin at gmail.com
Tue Jul 2 23:15:46 EDT 2013


I'm playing with riak_core to build a prototype. Thanks for giving such powerful framework to build a distributed app :) 
Looking at source code and examples I learn how to handle hinted handoff(s). It works really nice. But I wondered how to handle a node crash (when a node goes down unexpectedly for some reasons). 

Is there anyway I can be notified about node-down and get list of vnodes that were primary on that failed node? 

I think about an use case when a vnode was running a statefull process. When the node crashes I would like to restart the process on secondary node. 

P.S. The process state will be stored somewhere like mnesia or Riak :) Thus it will be accessible for other nodes as well.

Thank you,
Konstantin. 

 



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