Hi,
I stumbled across some of the JXTA scalability studies and following
caught me
http://www.disi.unige.it/person/FerranteM/papers/JXTA-survey.pdf
and
http://hal.inria.fr/docs/00/12/03/18/PDF/RR-6064.pdf
both seems to indicate that discovery-duration continues to increase as
peer-view size increases. This must in someway be influencing the sizing
of a Shoal-based cluster so that discovery-duration does not adversely
affect the application expectations (eg. if an application with high
transactional-rates is composed of 50 processes - 25 distinct application
processes in ACTIVE mode and 25 replicated processes on STANDBY mode, on
same GMS-group, significant raise in peer-discovery times would affect any
fault-tolerance/failover handling).
Is this the case and if so, what could be guidelines for sizing the
cluster beyond which it starts following "law of diminishing returns"?
Regards
Muthukumaran (Muthu)
Systems Engineer
IBM India Private Limited
Bangalore