Re: Bringing a dead node back up after fixing hardware issues

2012-07-30 Thread Eran Chinthaka Withana
Thanks Brandon. Thanks, Eran Chinthaka Withana On Thu, Jul 26, 2012 at 12:46 PM, Brandon Williams wrote: > On Wed, Jul 25, 2012 at 6:16 PM, Eran Chinthaka Withana > wrote: > > > Alright, lets assume I want to go on this route. I have RF=2 in the data > > center and I believe I need at least R

Re: Bringing a dead node back up after fixing hardware issues

2012-07-26 Thread Brandon Williams
On Wed, Jul 25, 2012 at 6:16 PM, Eran Chinthaka Withana wrote: > Alright, lets assume I want to go on this route. I have RF=2 in the data > center and I believe I need at least RF=3 to set the replication to > LOCAL_QUORUM and hide the node failures. But if I increase the RF to 3 now > then won't

Re: Bringing a dead node back up after fixing hardware issues

2012-07-25 Thread Eran Chinthaka Withana
Hi Brandon, > Increasing CL is tricky for us for now, as our RF on that datacenter is 2 > > and CL is set to ONE. If we make the CL to be LOCAL_QUORUM, then, if a > node > > goes down we will have trouble. I will try to increase the RF to 3 in > that > > data center and set the CL to LOCAL_QUORUM

Re: Bringing a dead node back up after fixing hardware issues

2012-07-24 Thread Brandon Williams
On Mon, Jul 23, 2012 at 10:24 PM, Eran Chinthaka Withana wrote: > Thanks Brandon for the answer (and I didn't know driftx = Brandon Williams. > Thanks for your awesome support in Cassandra IRC) Thanks :) > Increasing CL is tricky for us for now, as our RF on that datacenter is 2 > and CL is set

Re: Bringing a dead node back up after fixing hardware issues

2012-07-23 Thread Eran Chinthaka Withana
Thanks Brandon for the answer (and I didn't know driftx = Brandon Williams. Thanks for your awesome support in Cassandra IRC) Increasing CL is tricky for us for now, as our RF on that datacenter is 2 and CL is set to ONE. If we make the CL to be LOCAL_QUORUM, then, if a node goes down we will have

Re: Bringing a dead node back up after fixing hardware issues

2012-07-23 Thread Brandon Williams
On Mon, Jul 23, 2012 at 6:26 PM, Eran Chinthaka Withana wrote: > Method 1: I copied the data from all the nodes in that data center, into the > repaired node, and brought it back up. But because of the rate of updates > happening, the read misses started going up. That's not really a good method