Re: Cassandra 3.0.X migarte to VPC

2018-06-08 Thread Riccardo Ferrari
Thank you guys! Much appreciated. Leaving the snitch aside for a moment, we can fix this either before or after the migration. I understand I should prefer adding a new DC rather than extending/shrinking my current (and only) DC. Correct? Thanks, On Fri, Jun 8, 2018 at 2:22 AM, kurt greaves

Re: Cassandra 3.0.X migarte to VPC

2018-06-07 Thread kurt greaves
> > I meant migrating to gosspsnitch during adding new dc. New dc will be > empty so all the data will be streamed based on snitch property chosen Should work fine on the new DC, as long as the original DC is using a snitch that supports datacenters - then just don't mix and match snitches

Re: Cassandra 3.0.X migarte to VPC

2018-06-07 Thread Nitan Kainth
I meant migrating to gosspsnitch during adding new dc. New dc will be empty so all the data will be streamed based on snitch property chosen Sent from my iPhone > On Jun 7, 2018, at 12:23 PM, Jeff Jirsa wrote: > > I don't know about "new snitch protocol" (there is no snitch protocol), but >

Re: Cassandra 3.0.X migarte to VPC

2018-06-07 Thread Jeff Jirsa
I don't know about "new snitch protocol" (there is no snitch protocol), but in the case of ec2snitch and gossipingpropertyfilesnitch (do not extrapolate this to any other combination), you can switch them 1:1 before the move, and everything should be fine, as long as care is taken to make the

Re: Cassandra 3.0.X migarte to VPC

2018-06-07 Thread Nitan Kainth
Jeff, In this case, if Riccardo is adding new DC, then he can pickup new snitch protocol right? On Thu, Jun 7, 2018 at 12:15 PM, Jeff Jirsa wrote: > > > > On Thu, Jun 7, 2018 at 9:12 AM, Nitan Kainth > wrote: > >> Riccardo, >> >> Simplest method can be is to add VPC as an additional

Re: Cassandra 3.0.X migarte to VPC

2018-06-07 Thread Jeff Jirsa
On Thu, Jun 7, 2018 at 9:12 AM, Nitan Kainth wrote: > Riccardo, > > Simplest method can be is to add VPC as an additional datacenter to > existing cluster; once New DC has synced up all data, just switch over your > application. Only caveat is that there should be enough network bandwidth >

Re: Cassandra 3.0.X migarte to VPC

2018-06-07 Thread Nitan Kainth
Riccardo, Simplest method can be is to add VPC as an additional datacenter to existing cluster; once New DC has synced up all data, just switch over your application. Only caveat is that there should be enough network bandwidth between EC2 and VPC. Horizontal scaling will help to some extent.