Re: Unreliable transport layer

2010-03-06 Thread Avinash Lakshman
We have observed this. But in practice it doesn't cause any deleterious effects. IMHO detecting false failures of nodes is the most dangerous thing that could result from this kind of behavior. But that is why we have an Accrual FD which reacts and adjusts to these conditions. But having said that

Unreliable transport layer

2010-03-05 Thread Ashwin Jayaprakash
Hey guys! I have a simple question. I'm a casual observer, not a real Cassandra user yet. So, excuse my ignorance. I see that the Gossip feature uses UDP. I was curious to know if you guys faced issues with unreliable transports in your production clusters? Like faulty switches, dropped packets

Re: Unreliable transport layer

2010-03-05 Thread Jonathan Ellis
In 0.6 gossip is over TCP. On Fri, Mar 5, 2010 at 6:54 PM, Ashwin Jayaprakash ashwin.jayaprak...@gmail.com wrote: Hey guys! I have a simple question. I'm a casual observer, not a real Cassandra user yet. So, excuse my ignorance. I see that the Gossip feature uses UDP. I was curious to know if