Just want to conclude this thread with a pretty good read about Hazelcast. Arguably, by now Hazelcast software (at v3.5) is a pretty robust, well-implement and mature distributed grid/cache.
http://www.brickendon.com/articles/achieving-low-latency-using-distributed-cache/ <http://www.brickendon.com/articles/achieving-low-latency-using-distributed-cache/> Best, D. > On Jul 14, 2015, at 3:32 PM, Paul B. Henson <[email protected]> wrote: > >> From: Marvin Addison >> Sent: Tuesday, July 14, 2015 6:33 AM >> >> Correct. What makes this acceptable in many if not most cases is that the >> lost >> state is SSO state where the effect on the user is to log in again. As >> failure >> modes go, that's graceful behavior. > > Arguably true, but still not optimal :). Contrary to what seems to be the > average deployment, I also encrypt the cluster replication traffic over the > wire, so I perhaps have stricter requirements for perfection than generally > considered ;). > >> Peer-to-peer replication incurs a cost and in my experience the failure >> modes of >> replication are orders of magnitude worse than anything I've seen with >> memcached. Perhaps over time Hazelcast will prove itself both reliable and >> fault >> tolerant, but it's patently new technology at this point and needs some road >> time to convince me. > > I load tested it pretty heavily including random node restarts and it never > blipped. We've been running it in production for about a year and a half and > I haven't seen a single problem (knock on wood). We've probably done at least > 4-5 rolling updates since then where we pulled a node out of the cluster and > then stuck it back in, I'm unaware of any user facing issues or unnecessary > re-authentications. In any case, I'm pretty happy with it :), and wouldn't > really want to trade it out for memcached. > > Thanks… > > -- > Paul B. Henson | (909) 979-6361 | http://www.cpp.edu/~henson/ > Operating Systems and Network Analyst | [email protected] > California State Polytechnic University | Pomona CA 91768 > > > > -- > You are currently subscribed to [email protected] as: > [email protected] > To unsubscribe, change settings or access archives, see > http://www.ja-sig.org/wiki/display/JSG/cas-user -- You are currently subscribed to [email protected] as: [email protected] To unsubscribe, change settings or access archives, see http://www.ja-sig.org/wiki/display/JSG/cas-user
