Also, if you have enough hints being created that its significantly impacting your heap I have a feeling things are going to get out of sync very quickly.
On Mar 4, 2013, at 9:17 PM, "Wz1975" <wz1...@yahoo.com<mailto:wz1...@yahoo.com>> wrote: Why do you think disabling hinted handoff will improve memory usage? Thanks. -Wei Sent from my Samsung smartphone on AT&T -------- Original message -------- Subject: Re: hinted handoff disabling trade-offs From: Michael Kjellman <mkjell...@barracuda.com<mailto:mkjell...@barracuda.com>> To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" <user@cassandra.apache.org<mailto:user@cassandra.apache.org>> CC: Repair is slow. On Mar 4, 2013, at 8:07 PM, "Matt Kap" <matvey1...@gmail.com<mailto:matvey1...@gmail.com>> wrote: > I am looking to get a second opinion about disabling hinted-handoffs. I > have an application that can tolerate a fair amount of inconsistency > (advertising domain), and so I'm weighting the pros and cons of hinted > handoffs. I'm running Cassandra 1.0, looking to upgrade to 1.1 soon. > > Pros of disabling hinted handoffs: > - Reduces heap > - Improves GC performance > - No risk of hinted-handoffs building up > - No risk of hinted-handoffs flooding a node that just came up > > Cons > - Some writes can be lost, at least until repair runs > > Can anyone suggest any other factors that I'm missing here. Specifically > reasons > not to do this. > > Cheers! > -Matt Copy, by Barracuda, helps you store, protect, and share all your amazing things. Start today: www.copy.com<http://www.copy.com>. Copy, by Barracuda, helps you store, protect, and share all your amazing things. Start today: www.copy.com.
