You can read this paper that explains the Phi Accrual Failure detection algo: http://vsedach.googlepages.com/HDY04.pdf
The phi value is the level of suspicion a server might be down. phi_convict_threshold = suspicion level above which a server is marked down On Mon, Aug 3, 2015 at 1:29 PM, Thouraya TH <thouray...@gmail.com> wrote: > Hi all, > > Please, can you explain me this sentence: > > The configuration parameter phi_convict_threshold in the cassandra.yaml > file is used to control Cassandra’s sensitivity of node failure detection. > > ? > > > Thank you so much for help. > Kind regards. >