Re: upgrade pinning to v3 protocol: massive drop in writes

2019-06-26 Thread Colleen Velo
To further clarify @carl.mueller's comments above, it would appear that both the initial jump in metrics (and subsequent drop) was app-related, not cassandra related. On Tue, Jun 25, 2019 at 1:45 PM Carl Mueller wrote: > Nevermind, it would appear once we looked further out on the metrics there

Re: Expanding from 1 to 2 datacenters

2019-06-26 Thread Paul Chandler
Hi Voytek, We moved a large number of clusters from Rackspace to Google, doing it in a similar way to you are suggesting, so to answer your questions: 1) We created the nodes first with seeds from just the original datacenters, then updated the seed list to include seeds from the new DC afterwa

Re: Expanding from 1 to 2 datacenters

2019-06-26 Thread Voytek Jarnot
Expanding on number 4 below: I'm not quite sure what the easiest course of action might be. Currently the 4 existing nodes listen on private IPs and seeds are set to internal DNS names. Is setting broadcast_address to their public IPs and restarting a viable solution? I'm trying to minimize chang

Expanding from 1 to 2 datacenters

2019-06-26 Thread Voytek Jarnot
I started an higher-level thread years ago about moving a cluster by expanding from 1 to 2 datacenters, replicating over, then decommissioning the original DC. Corporate plans being what they are, we're finally getting into this; I'm largely following the writeup here: https://docs.datastax.com/en/