Thanks Paul On Tue, Apr 16, 2019 at 9:52 AM Paul Chandler <p...@redshots.com> wrote:
> Hi Shravan, > > We did not see any down sides of using the GossipingPropertyFileSnitch, in > fact being able to handcraft the DC allowed us to easily create “virtual” > cassandra datacenters within the google DC, something we have used for > splitting multi tenanted clusters. I am not sure how easy that would have > been with the GoogleCloudSnitch. > > Looking at the code for the various snitches, obviously the loading of the > dc and rack information is different, but once it is loaded, the data is > used in the same way. > > So I can’t see any problem with continuing to use > the GossipingPropertyFileSnitch, although that comes with the one caveat > that I have never tried it on Amazon, only GCP. > > Thanks > > Paul Chandler > www.redshots.com > > On 16 Apr 2019, at 15:02, Shravan R <skr...@gmail.com> wrote: > > Thanks Paul. Glad to know that you are speaking on the very subject soon. > > Even though you are on GCP, you are still tied with > GossipingPropertyFileSnitch and not enjoying the GoogleCloudSnitch. If it > is not too much to ask, other than hand stitching RACK and DC in > cassandra-rackdc.properties are there any down sides of not using > GoogleCloudSnitch in your case and EC2Snitch in my case? > > Thanks, > Shravan > > On Tue, Apr 16, 2019 at 4:05 AM Paul Chandler <p...@redshots.com> wrote: > >> Sravan, >> >> When we migrated to google we just continued using the >> GossipingPropertyFileSnitch, we did not try and use the google version of >> the snitch. >> >> The only downside is the need to manually setup the >> cassandra-rackdc.properties file, but for us that was controlled by puppet >> anyway, so it was not an issue. >> >> Thanks >> >> Paul Chandler >> www.redshots.com >> >> PS Myself and Gilberto Müeller are presenting at Datastax Accelerate on >> this very subject, how we migrated 91 clusters to Google, including what >> problems we had along the way. It would be worth you attending that session >> if you are there. >> >> > On 16 Apr 2019, at 03:46, Shravan R <skr...@gmail.com> wrote: >> > >> > Can we have multiple snitches within the same cluster? >> > >> > Reason for the ask: I need to find an optimal migration path from on >> prem DC to AWS. >> > Currently the cluster has TWO on prem DCs and the end cluster state >> should be TWO DCs in same region/multiple zones in AWS. >> > >> > I know there is EC2Snitch - but that is if I have all the servers in AWS >> > >> > I am thinking of using existing property file snitch but hand stitch >> the rack and dc from AWS region/zone and add two more DC's. Down side with >> this approach - I am really not using EC2Snitch which would have been nice. >> > >> > BTW I am running apache cassandra 2.1.9 (yeah old). >> > >> > Appreciate your thoughts on this. >> > >> > -Sravan >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >> For additional commands, e-mail: user-h...@cassandra.apache.org >> >> >
