Seeing tons of DigestMismatchException exceptions after upgrading from 2.2.13 to 3.11.4

2019-11-25 Thread Colleen Velo
Hello, As part of the final stages of our 2.2 --> 3.11 upgrades, one of our clusters (on AWS/ 18 nodes/ m4.2xlarge) produced some post-upgrade fits. We started getting spikes of Cassandra read and write timeouts despite the fact the overall metrics volumes were unchanged. As part of the upgrade pr

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